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Spain · Multi-region weather view

Catalonia

This region extends from Penedes to Priorat.

Penedès gets more cooling from the Mediterranean, while elevation and distance from the sea bring more heat and dryness inland.

Climate comparisons use the 1991–2020 combined regional record · updated through Aug 20, 2026.

Current conditions

Observations through Aug 31, 2026 · 06:00 UTC

Temperature19.6°C
Dew Point17.8°C
Relative Humidity89%
24h Rainfall0.0 mmmodeled IFS total through Aug 30

Vintage explorer

Moderately cooler and significantly drier than normal.

Mean temperature21.4°C
Temperature anomaly+2.4°Cvs 1991-2020
Growing degree days1852base 10°C
Hot days9≥ 35°C

What stood out in 2026

Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation.

Warmer growing season · High confidence

Mean growing-season temperature was +2.4°C versus the 1991–2020 baseline.

Warm weather can speed ripening and leave grapes with less acidity.

More hot days than usual · High confidence

There were 9 days at or above 35°C—+9 days versus baseline.

Repeated hot days can speed ripening and put vines under stress.

Drier than baseline · Moderate confidence

Growing-season precipitation was 320 mm below the 1991–2020 baseline.

Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation.

2026 month by month

Replay the 2026 growing season

Closest weather matches

How similar years are calculated

Method analog-v1-2026-07 standardizes six weather measures across 0 complete ARCO ERA5 comparison years, then measures the distance between them. The calculation runs when the page is requested.

Growing-season temperature anomalyCompared with 1991-2020
Temperature anomaly by vintage, 1991 to 2026 A line above zero indicates a warmer growing season than the 1991–2020 baseline. Select a point to inspect that vintage. +2.6°C −2.6°C 1991 2000 2010 2020 2026
Growing-season rainfall anomaly
Rainfall anomaly by vintage, 1991 to 2026 Bars show millimeters above or below the 1991–2020 growing-season baseline. Select a bar to inspect that vintage. +330 mm −330 mm 1991 2000 2010 2020 2026
View historical chart data as a table
YearTemperature anomalyRainfall anomalyHot days
1991-1.1°C-28 mm0
1992-1.2°C+147 mm0
1993-1.3°C+28 mm0
1994+0.0°C+22 mm0
1995-0.5°C+15 mm0
1996-1.0°C-23 mm0
1997+0.1°C-132 mm0
1998-0.2°C-108 mm0
1999+0.1°C-54 mm0
2000-0.3°C+29 mm0
2001+0.3°C-72 mm0
2002-0.6°C+103 mm0
2003+0.5°C+18 mm3
2004-0.2°C-26 mm0
2005+0.3°C-30 mm0
2006+0.8°C-84 mm0
2007-0.0°C-4 mm0
2008-0.8°C+144 mm0
2009+0.0°C-114 mm1
2010-0.8°C+25 mm1
2011+0.7°C-45 mm0
2012+0.6°C+26 mm0
2013+0.0°C-60 mm0
2014+0.7°C+18 mm0
2015+0.9°C-17 mm0
2016+0.5°C-39 mm0
2017+0.9°C-106 mm1
2018+0.8°C+266 mm3
2019+0.5°C+7 mm2
2020+0.1°C+92 mm0
2021+0.3°C-80 mm2
2022+1.8°C+68 mm5
2023+1.8°C-119 mm7
2024+0.7°C+144 mm2
2025+1.3°C+30 mm5
2026+2.4°C-320 mm9

winter

9.9°C

+1.8°C vs baseline

246 mm rain · +138 mm

spring

15.4°C

+1.4°C vs baseline

121 mm rain · -45 mm

summer

26.3°C

+3.4°C vs baseline

76 mm rain · -62 mm

harvest

26.3°C

+7.0°C vs baseline

32 mm rain · -180 mm

Weather events

1991–present

Climate change

Measured regional trends are shown separately from model projections. The observed record ends at the latest complete growing season shared by every published region.

Compare regions

Observed record

Historical trends, 1991–2025

Growing degree days changed +131.5 GDD per decade. The 95% interval is +100.2 to +162.7 GDD per decade, based on 35 eligible vintages.

How it is measured: Across the March 15–October 31 growing season, each day's mean temperature above 10°C adds to the total; cooler days add zero.

Growing degree days · annual change from the 1991–2020 average1991–2025

Scroll horizontally to inspect the full timeline.

View annual growing degree days data
VintageGrowing degree daysChange from 1991–2020
19911825 GDD-247 GDD
19921798 GDD-274 GDD
19931773 GDD-299 GDD
19942069 GDD-3 GDD
19951957 GDD-115 GDD
19961842 GDD-230 GDD
19972099 GDD+27 GDD
19982025 GDD-47 GDD
19992102 GDD+30 GDD
20001993 GDD-79 GDD
20012137 GDD+65 GDD
20021925 GDD-147 GDD
20032197 GDD+125 GDD
20042037 GDD-35 GDD
20052140 GDD+68 GDD
20062259 GDD+187 GDD
20072071 GDD-1 GDD
20081901 GDD-171 GDD
20092071 GDD-1 GDD
20101892 GDD-180 GDD
20112226 GDD+154 GDD
20122211 GDD+139 GDD
20132082 GDD+10 GDD
20142225 GDD+153 GDD
20152294 GDD+222 GDD
20162181 GDD+109 GDD
20172288 GDD+216 GDD
20182270 GDD+198 GDD
20192179 GDD+107 GDD
20202092 GDD+20 GDD
20212138 GDD+66 GDD
20222494 GDD+422 GDD
20232471 GDD+399 GDD
20242227 GDD+155 GDD
20252368 GDD+296 GDD
Growing-season mean temperature
+0.57 °C per decade 95% interval +0.43 to +0.71
Growing degree days
+131.46 GDD per decade 95% interval +100.19 to +162.73
Growing-season precipitation
+9.86 mm per decade 95% interval -16.59 to +36.32
Hot days
+1.03 days per decade 95% interval +0.36 to +1.70
Spring frost days
+0.01 days per decade 95% interval -0.38 to +0.41
Longest dry spell
-0.47 days per decade 95% interval -2.63 to +1.68

Last Updated August 20, 2026

Model ensemble

Projected climate through 2075

Temperature changes are relative to each model’s 1991–2020 baseline. The table combines all three pathways, weighted 70% to SSP2-4.5 and 15% each to SSP1-2.6 and SSP3-7.0.

Scroll horizontally to compare all columns.

PeriodWeighted medianWeighted central 80%Models per pathway
2021-2040+1.1°C+0.7 to +1.5°C25
2041-2060+1.6°C+1.2 to +2.4°C25
2061-2075+2.0°C+1.6 to +3.1°C25
How pathways are combined

For each period and percentile, Weather & Vines takes 70% of the SSP2-4.5 value, 15% of the SSP1-2.6 value, and 15% of the SSP3-7.0 value. Each pathway contains the same 25 models. The weights are an editorial view of the current trajectory, not scenario probabilities.

Last Updated June 29, 2025

Compare projection measures across regions

Typical year · 1991–2020

When to visit

This calendar describes typical regional weather under the selected climate baseline. It is not a forecast for a future trip, and it does not account for crowds, lodging, events, or vineyard access.

Deterministic IFS forecast

Next ten days

Detailed forecast outlook

ECMWF IFS 0.25° via Herbie · model run Aug 31, 2026 at 00:00 UTC · retrieved Aug 31, 2026 at 08:20 UTC

Scroll horizontally to see all forecast dates.

DateMonTueWedThuFriSatSunMonTueWed
High 30°C 28°C 30°C 30°C 32°C 33°C 32°C 31°C 31°C 29°C
Low 20°C 20°C 20°C 21°C 20°C 21°C 22°C 20°C 22°C 24°C
Rain 0.1 mm 0.1 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 1.3 mm

Across the typical year: Late July has the warmest median afternoon high (29.7°C); Early January has the coolest (12.4°C). Wet days are most frequent in Early September (41%) and least frequent in Late December (17%). Ties are resolved by calendar order.

Typical afternoon highs and overnight lowsMedians and middle 50% of daily readings

Afternoon highOvernight lowMiddle 50%

Scroll horizontally to inspect all 24 half-month periods.

Typical afternoon highs and overnight lows for Catalonia Median daily maximum and minimum temperatures for 24 early and late-month periods under the 1991–2020 baseline. Neutral bands show the 25th to 75th percentile. -5°C5°C15°C25°C35°C JanFebMarAprMayJunJulAugSepOctNovDec
How often a day is wetShare of days with at least 1 mm of rain

Scroll horizontally to inspect all 24 half-month periods.

Wet-day frequency through the typical year for Catalonia The fraction of days receiving at least one millimeter of rain in each early and late-month period under the 1991–2020 baseline. 0%25%50%75%100% JanFebMarAprMayJunJulAugSepOctNovDec
View all 24 periods as a table

Scroll horizontally to view all columns.

Catalonia typical weather by half-month, 1991–2020
PeriodAfternoon high, median (middle 50%)Overnight low, median (middle 50%)Wet-day frequencyPeriod rain, median (middle 50%)
Jan 1–1512.4°C (10.6–14.3°C)2.1°C (-0.1–4.7°C)18%9.1 mm (1.4–21.8 mm)
Jan 16–3112.6°C (10.9–14.5°C)3.0°C (0.6–5.2°C)26%15.7 mm (6.2–29.2 mm)
Feb 1–1513.6°C (11.7–15.4°C)3.2°C (1.2–5.1°C)20%13.8 mm (4.1–23.2 mm)
Feb 16–2914.6°C (12.2–16.6°C)3.8°C (1.8–5.9°C)23%10.2 mm (3.3–15.2 mm)
Mar 1–1516.2°C (14.0–18.3°C)5.4°C (3.5–7.2°C)23%12.0 mm (4.6–25.0 mm)
Mar 16–3117.2°C (15.1–19.3°C)6.6°C (4.9–8.1°C)26%19.6 mm (11.7–36.6 mm)
Apr 1–1518.0°C (15.9–20.0°C)7.4°C (6.1–8.8°C)32%20.8 mm (7.9–37.7 mm)
Apr 16–3019.3°C (17.7–21.3°C)9.2°C (7.6–10.5°C)36%27.6 mm (19.2–39.7 mm)
May 1–1521.2°C (19.2–23.0°C)11.0°C (9.2–12.6°C)35%30.2 mm (17.9–51.0 mm)
May 16–3123.2°C (21.4–24.9°C)13.0°C (11.3–14.4°C)28%17.7 mm (8.7–28.3 mm)
Jun 1–1525.1°C (23.5–26.8°C)14.9°C (13.5–16.1°C)31%16.5 mm (11.8–31.8 mm)
Jun 16–3027.6°C (25.7–29.3°C)16.9°C (15.5–18.4°C)18%8.8 mm (4.9–16.8 mm)
Jul 1–1528.5°C (26.5–29.9°C)18.3°C (17.0–19.5°C)25%16.4 mm (9.0–30.4 mm)
Jul 16–3129.7°C (28.2–30.7°C)19.3°C (18.3–20.1°C)17%9.9 mm (4.2–17.0 mm)
Aug 1–1529.3°C (27.9–30.6°C)19.4°C (18.3–20.5°C)28%20.3 mm (11.8–38.1 mm)
Aug 16–3128.8°C (27.3–30.0°C)19.1°C (17.8–19.9°C)30%27.3 mm (13.7–39.5 mm)
Sep 1–1526.6°C (25.2–27.9°C)16.9°C (15.4–18.5°C)41%36.6 mm (19.3–64.4 mm)
Sep 16–3024.3°C (22.7–25.7°C)14.8°C (12.9–16.4°C)37%37.1 mm (20.5–60.4 mm)
Oct 1–1522.5°C (20.7–24.4°C)13.1°C (11.1–15.2°C)35%31.5 mm (17.3–53.8 mm)
Oct 16–3120.5°C (18.5–22.3°C)11.1°C (8.7–13.2°C)33%38.2 mm (18.3–58.6 mm)
Nov 1–1517.6°C (15.8–19.2°C)7.9°C (6.0–10.0°C)25%22.3 mm (8.4–40.8 mm)
Nov 16–3015.0°C (13.0–16.8°C)5.3°C (2.6–7.7°C)22%15.6 mm (6.9–38.6 mm)
Dec 1–1513.6°C (11.7–15.4°C)4.0°C (2.0–6.2°C)21%10.6 mm (5.2–38.7 mm)
Dec 16–3112.7°C (10.8–14.4°C)3.0°C (0.4–5.7°C)17%8.3 mm (2.7–24.4 mm)

Each year contributes to temperature or rain separately when at least 90% of that period’s days are present. A value is shown only when at least 80% of the baseline years qualify. February 29 is included in late February.

Historical climatology Last Updated August 20, 2026

Season to date

Growing season heat and rainfall

Mar 15–Aug 31, 2026

Growing degree days1852.4base 10°C
Growing-season rainfall139.7 mmweighted regional total
Cumulative growing degree daysBase 10°C

2026 season1991–2020 average

Growing degree days accumulated during the 2026 growing season The solid line accumulates daily mean temperature above 10 degrees Celsius from the configured growing-season start. The dashed line shows the 1991–2020 daily climatological average. 1852 GDD 0 Mar ’26AprMayJunJulAug
Cumulative growing-season rainfallRegional weighted mean

2026 season1991–2020 average

Rainfall accumulated during the 2026 growing season The solid line accumulates daily rainfall in millimeters from the configured growing-season start. The dashed line shows the 1991–2020 daily climatological average. 263 mm 0 Mar ’26AprMayJunJulAug
View growing-season accumulation data
DateSeason GDD1991–2020 average GDDSeason rainfall1991–2020 average rainfall
2026-03-151.21.90.0 mm1.7 mm
2026-03-162.73.60.0 mm3.5 mm
2026-03-175.15.70.0 mm4.1 mm
2026-03-186.87.70.2 mm4.3 mm
2026-03-197.89.70.5 mm5.1 mm
2026-03-207.911.90.5 mm6.1 mm
2026-03-217.913.90.5 mm7.8 mm
2026-03-227.916.10.7 mm9.2 mm
2026-03-2310.118.11.6 mm10.7 mm
2026-03-2412.920.01.7 mm13.9 mm
2026-03-2516.521.91.8 mm16.4 mm
2026-03-2618.523.52.8 mm17.7 mm
2026-03-2720.725.72.8 mm18.7 mm
2026-03-2822.928.22.8 mm20.1 mm
2026-03-2924.030.95.4 mm21.9 mm
2026-03-3025.633.45.4 mm24.6 mm
2026-03-3130.236.05.4 mm26.3 mm
2026-04-0133.438.65.4 mm28.1 mm
2026-04-0237.241.48.3 mm29.8 mm
2026-04-0341.543.88.3 mm32.9 mm
2026-04-0446.246.48.3 mm35.3 mm
2026-04-0551.248.98.3 mm37.5 mm
2026-04-0656.251.68.3 mm38.3 mm
2026-04-0760.754.38.3 mm40.4 mm
2026-04-0866.757.28.3 mm42.9 mm
2026-04-0974.360.28.3 mm44.1 mm
2026-04-1082.463.18.3 mm46.2 mm
2026-04-1190.966.28.3 mm48.6 mm
2026-04-1294.569.217.8 mm50.2 mm
2026-04-1397.972.323.5 mm51.8 mm
2026-04-14101.075.023.5 mm53.2 mm
2026-04-15105.178.223.5 mm55.5 mm
2026-04-16111.081.423.5 mm57.6 mm
2026-04-17117.485.023.5 mm59.2 mm
2026-04-18124.388.623.5 mm60.3 mm
2026-04-19131.892.123.6 mm62.6 mm
2026-04-20138.995.823.8 mm65.5 mm
2026-04-21146.099.523.8 mm68.3 mm
2026-04-22153.8103.423.9 mm70.5 mm
2026-04-23160.2108.223.9 mm71.7 mm
2026-04-24165.5112.823.9 mm73.1 mm
2026-04-25171.3117.924.0 mm74.2 mm
2026-04-26179.0123.024.2 mm76.5 mm
2026-04-27187.0127.624.4 mm79.1 mm
2026-04-28193.6132.324.4 mm81.8 mm
2026-04-29201.2136.624.4 mm85.6 mm
2026-04-30208.7141.424.6 mm88.1 mm
2026-05-01216.6145.826.0 mm90.9 mm
2026-05-02223.4150.826.2 mm94.3 mm
2026-05-03229.5155.826.4 mm98.2 mm
2026-05-04235.5161.133.4 mm99.3 mm
2026-05-05240.2167.036.4 mm100.3 mm
2026-05-06244.8172.636.5 mm101.7 mm
2026-05-07249.2178.337.5 mm104.1 mm
2026-05-08253.4184.438.0 mm106.8 mm
2026-05-09258.6190.846.0 mm110.0 mm
2026-05-10264.6197.246.7 mm115.5 mm
2026-05-11272.3203.746.7 mm118.8 mm
2026-05-12279.0210.354.4 mm120.9 mm
2026-05-13285.8216.954.9 mm122.5 mm
2026-05-14293.0223.654.9 mm124.7 mm
2026-05-15297.4230.258.2 mm126.0 mm
2026-05-16301.2237.158.2 mm127.9 mm
2026-05-17306.0244.058.7 mm130.3 mm
2026-05-18312.3251.362.8 mm131.5 mm
2026-05-19321.5258.363.1 mm133.0 mm
2026-05-20330.7265.763.3 mm134.4 mm
2026-05-21341.2272.863.3 mm135.2 mm
2026-05-22351.9280.863.3 mm136.2 mm
2026-05-23363.3288.963.3 mm136.7 mm
2026-05-24376.0297.263.3 mm138.2 mm
2026-05-25388.1305.463.3 mm140.8 mm
2026-05-26400.0314.163.3 mm141.5 mm
2026-05-27412.6322.863.3 mm143.5 mm
2026-05-28427.3331.563.3 mm145.1 mm
2026-05-29442.0340.663.3 mm145.6 mm
2026-05-30455.3349.563.3 mm147.3 mm
2026-05-31468.3358.863.4 mm148.8 mm
2026-06-01480.5368.263.8 mm150.8 mm
2026-06-02494.5377.766.0 mm152.1 mm
2026-06-03506.2387.366.0 mm153.7 mm
2026-06-04517.2396.885.6 mm155.1 mm
2026-06-05525.9406.387.1 mm157.0 mm
2026-06-06536.3415.787.4 mm158.9 mm
2026-06-07547.8425.587.4 mm160.6 mm
2026-06-08559.7435.187.4 mm162.6 mm
2026-06-09571.2444.988.0 mm164.5 mm
2026-06-10581.7454.988.6 mm168.6 mm
2026-06-11592.4465.088.7 mm170.7 mm
2026-06-12604.3475.488.7 mm171.4 mm
2026-06-13618.8486.188.7 mm172.7 mm
2026-06-14633.1497.188.8 mm174.6 mm
2026-06-15647.5508.389.1 mm176.2 mm
2026-06-16662.4519.589.2 mm177.4 mm
2026-06-17677.5530.789.2 mm179.1 mm
2026-06-18691.0542.089.2 mm180.4 mm
2026-06-19705.9553.489.2 mm181.3 mm
2026-06-20721.5565.189.2 mm181.7 mm
2026-06-21738.7577.189.2 mm182.4 mm
2026-06-22756.9589.389.2 mm182.8 mm
2026-06-23774.4601.489.3 mm183.6 mm
2026-06-24792.2613.489.3 mm184.7 mm
2026-06-25808.9625.889.3 mm185.6 mm
2026-06-26825.9638.589.3 mm186.0 mm
2026-06-27842.8651.389.3 mm186.5 mm
2026-06-28860.5664.289.3 mm188.3 mm
2026-06-29878.3677.590.4 mm188.9 mm
2026-06-30896.4690.590.5 mm189.7 mm
2026-07-01913.4703.290.6 mm192.0 mm
2026-07-02930.9716.090.6 mm193.1 mm
2026-07-03947.6729.290.6 mm194.0 mm
2026-07-04964.5742.490.6 mm196.3 mm
2026-07-05982.6755.790.6 mm197.3 mm
2026-07-061001.1769.190.6 mm198.0 mm
2026-07-071019.2782.390.7 mm199.4 mm
2026-07-081039.4795.591.2 mm200.3 mm
2026-07-091058.8808.591.2 mm202.0 mm
2026-07-101076.0821.791.2 mm203.2 mm
2026-07-111092.8834.991.2 mm204.0 mm
2026-07-121109.9848.291.2 mm205.5 mm
2026-07-131127.5861.791.2 mm206.9 mm
2026-07-141144.9874.991.2 mm208.5 mm
2026-07-151164.4888.691.6 mm209.7 mm
2026-07-161182.5902.391.6 mm210.5 mm
2026-07-171200.7916.291.6 mm211.3 mm
2026-07-181218.6930.191.7 mm211.7 mm
2026-07-191237.1944.091.8 mm212.9 mm
2026-07-201255.5958.192.4 mm213.3 mm
2026-07-211274.6972.192.5 mm214.6 mm
2026-07-221292.2986.292.5 mm215.5 mm
2026-07-231310.31000.492.5 mm216.2 mm
2026-07-241328.01014.992.5 mm216.9 mm
2026-07-251346.21029.495.5 mm218.2 mm
2026-07-261360.91044.096.7 mm219.1 mm
2026-07-271376.31058.596.8 mm220.6 mm
2026-07-281392.21073.296.8 mm221.0 mm
2026-07-291409.51088.096.8 mm221.8 mm
2026-07-301426.91102.996.8 mm222.6 mm
2026-07-311443.71117.596.9 mm224.1 mm
2026-08-011460.41131.897.2 mm226.1 mm
2026-08-021478.01146.397.4 mm227.7 mm
2026-08-031495.21160.899.6 mm228.1 mm
2026-08-041511.51175.5100.8 mm229.3 mm
2026-08-051529.31190.2100.8 mm230.3 mm
2026-08-061546.51205.1106.5 mm232.0 mm
2026-08-071563.11219.6106.6 mm234.2 mm
2026-08-081580.41234.1106.6 mm236.7 mm
2026-08-091598.11248.2106.6 mm239.2 mm
2026-08-101615.61262.1106.7 mm241.4 mm
2026-08-111633.21276.0107.0 mm242.7 mm
2026-08-121651.51290.1107.1 mm244.5 mm
2026-08-131670.51304.0107.1 mm245.7 mm
2026-08-141689.81317.8107.1 mm246.9 mm
2026-08-151706.11331.6108.0 mm249.0 mm
2026-08-161723.21345.4109.7 mm249.7 mm
2026-08-171741.01359.1110.1 mm252.2 mm
2026-08-181758.91373.0111.8 mm254.1 mm
2026-08-191777.81387.1112.4 mm255.9 mm
2026-08-201795.81401.2123.0 mm257.6 mm
2026-08-211809.41415.3127.7 mm258.3 mm
2026-08-221822.91429.1129.4 mm260.4 mm
2026-08-231838.11443.0130.1 mm261.0 mm
2026-08-241852.41457.0139.7 mm263.1 mm

Forecast outlook

ECMWF IFS 0.25° via Herbie · run Aug 31, 2026 at 00:00 UTC

10-day totals compared with the 1991–2020 combined regional record

GDD accumulation
151 GDDvs 121 GDD average
Total rainfall
1.6 mmvs 25.9 mm average

No unusually hot or wet period stands out in the short-range forecast.

Mon8/31 30°Cavg 27°C 20°Cavg 18°C +14 GDD 0.1 mm
Tue9/1 28°Cavg 27°C 20°Cavg 18°C +14 GDD 0.1 mm
Wed9/2 30°Cavg 27°C 20°Cavg 18°C +14 GDD 0.0 mm
Thu9/3 30°Cavg 27°C 21°Cavg 17°C +15 GDD 0.0 mm
Fri9/4 32°Cavg 27°C 20°Cavg 18°C +16 GDD 0.0 mm
Sat9/5 33°Cavg 27°C 21°Cavg 17°C +16 GDD 0.0 mm
Sun9/6 32°Cavg 27°C 22°Cavg 17°C +16 GDD 0.0 mm
Mon9/7 31°Cavg 27°C 20°Cavg 17°C +15 GDD 0.0 mm
Tue9/8 31°Cavg 27°C 22°Cavg 17°C +15 GDD 0.0 mm
Wed9/9 29°Cavg 26°C 24°Cavg 17°C +16 GDD 1.3 mm

Data and methods

Show data sources and model assumptions

Current model conditions and the 10-day outlook use the 00 UTC deterministic ECMWF IFS 0.25° public forecast retrieved directly with Herbie. Historical temperature and rain combine qualifying GHCN-D stations with ERA5 by geographic area; a missing station day uses the nearest ERA5 value for that station's area. Climate comparisons use 1991–2020.

Forecast comparisons use the 1991–2020 combined regional daily record. Daily high and low averages use the matching date; rainfall and GDD sum the same calendar dates as the forecast period.

This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Weather & Vines subsets, converts, and regionally weights the forecast fields. ECMWF data are published under CC BY 4.0. ECMWF accepts no liability for errors, omissions, availability, loss, or damage arising from their use.

Climate projections use NASA NEX-GDDP-CMIP6 v2.0, accessed August 23, 2026, with 25 models. Weather & Vines subsets and aggregates the source fields. Source files and derived projection data are under CC BY-SA 4.0; the full roster and limitations are listed in the climate atlas methods.

The Catalonia model uses a March 15–October 31 growing season, base 10°C GDD, and an operational hot-day marker of 35°C.

The historical series uses 2 ERA5 locations, 1 temperature station, and 1 rain station. Interpretation confidence: moderate. Geometry confidence: reviewed-approximate. Rules: priorat-catalog-v1-2026-07.