Basque Country

Gasteiz / Vitoria, Spain Climate

NASA POWER reanalysis for the half-degree grid cell around Gasteiz / Vitoria, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

The warmest month is August, with an average high of 25°C; the coldest is January, with an average low of 2°C. A normal year brings 921 mm of precipitation.

Temperature through the year

The normal daily high and low. The line marks today.

Normal daily high and low temperature at Gasteiz / Vitoria through the year, in °C, with the record for each date.-10010203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

Normals for Sep 24

Normal high
21°C
Normal low
12°C
Reanalysis high
29°Cin 1991
Reanalysis low
7°Cin 2002
Chance of a wet day
40%
Daylight
12 h 05 min

Month by month

Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.

MonthAvg highAvg lowWarmestColdestPrecipitationWet days
January9°C2°C19°C (2016)-6°C (2007)93 mm15.5
February10°C2°C21°C (2019)-6°C (2005)79 mm11.3
March13°C4°C23°C (2017)-8°C (2005)74 mm12.4
April15°C6°C28°C (2005)-1°C (1996)81 mm15.0
May18°C9°C32°C (2005)2°C (2019)71 mm12.4
June22°C12°C35°C (2017)5°C (2006)60 mm12.0
July24°C14°C36°C (2019)7°C (1997)47 mm9.3
August25°C15°C37°C (2003)9°C (1998)47 mm9.3
September22°C12°C36°C (2016)5°C (2002)63 mm12.0
October18°C9°C29°C (2017)-2°C (2003)90 mm12.4
November13°C6°C24°C (2015)-3°C (2007)120 mm15.0
December10°C3°C18°C (2000)-8°C (2001)96 mm12.4
Year17°C8°C921 mm149

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.

921 mm in a normal year, most in November.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Gasteiz / Vitoria, in percent.0204060JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Gasteiz / Vitoria.

The muggiest month is July, when 1 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January3°C87%100%0%0%0%0%0%
February3°C84%100%0%0%0%0%0%
March5°C81%100%0%0%0%0%0%
April6°C79%100%0%0%0%0%0%
May9°C78%91%8%0%0%0%0%
June12°C78%56%36%7%0%0%0%
July14°C76%31%48%20%1%0%0%
August14°C73%33%50%16%1%0%0%
September12°C74%67%30%4%0%0%0%
October9°C78%92%7%0%0%0%0%
November6°C85%100%0%0%0%0%0%
December4°C87%100%0%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is August, with the sky 63 percent covered on average; the cloudiest is December, at 78 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is January, averaging 14.0 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 19, with 15 h 21 min of daylight; the shortest is Dec 18, with 9 h 01 min.

Hours of daylight at Gasteiz / Vitoria through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Gasteiz / Vitoria in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.