What the averages say
The mean annual temperature is 12.0 °C. The warmest month is August, averaging 19.8 °C with highs around 26.7 °C; the coldest is January, averaging 5.3 °C with lows of 1.4 °C. The 25 degrees between the mean high of August and the mean low of January are the real measure of how continental this climate is.
Heat, cold and extremes
On average, 24 days a year reach 30 °C or more and 48 bring frost. Cold weighs more than heat here. The highest reading in the series is 40.8 °C, set in August, and the lowest -12.4 °C, in January.
Rain, sun and wind
749 mm fall each year over 162 days with measurable rain, an amount with a summer clearly drier than the rest of the year: November is the wettest month with 98 mm and August the driest with 28 mm. The sky is clear on 23 days a year. Mean wind speed is around 10 km/h and mean annual relative humidity 76 %.
Month by month
AEMET climate normals 1991-2020. Foronda-Txokiza observatory, 6.5 km from the centre at 513 m above sea level.| Monthly mean | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|
| Mean temperature | 5.3 | 5.8 | 8.5 | 10.3 | 13.7 | 17.1 | 19.3 | 19.8 | 16.8 | 13.1 | 8.5 | 5.7 |
|---|
| Mean high | 9.2 | 10.6 | 14.2 | 16.2 | 20.0 | 23.7 | 26.1 | 26.7 | 23.4 | 18.7 | 12.7 | 9.5 |
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| Mean low | 1.4 | 1.1 | 2.8 | 4.4 | 7.3 | 10.5 | 12.5 | 12.7 | 10.1 | 7.6 | 4.3 | 1.9 |
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| Rainfall (mm) | 84 | 74 | 70 | 65 | 64 | 45 | 34 | 28 | 42 | 65 | 98 | 79 |
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| Rain days | 15.1 | 12.0 | 13.1 | 16.4 | 15.4 | 11.0 | 9.1 | 9.5 | 12.2 | 15.3 | 17.2 | 15.8 |
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| Days ≥ 30 °C | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 4.7 | 7.2 | 9.0 | 2.7 | 0.0 | 0.0 | 0.0 |
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| Frost days | 11.8 | 11.8 | 6.8 | 2.6 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.9 | 4.1 | 9.8 |
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Where this data comes from
These are the 1991-2020 climate normals published by AEMET, the Spanish state meteorological agency, for the Foronda-Txokiza observatory — the nearest official station with a complete series to Vitoria-Gasteiz today. A normal is not a forecast: it describes a thirty-year average, and any given day can depart from it widely. For tomorrow, use the forecast at the top of this page.
