Donostia, Basque Country, Spain Climate Change Severity

43
High
The current climate change severity in Donostia is High, with a 1.7% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Aug. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Donostia Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Donostia temperature has changed by around +7.2%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Aug. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
4364
48.8%
cloudyCloudy
4826
-45.8%
rainyRainy
13488
-34.3%
snowySnowy
00
0%
mistyMisty
09
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, Donostia has experienced measurable shifts in key climate parameters, contributing to the current severity score of 43 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

43/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Donostia experienced significant changes:

Temperature change of

+1.01 °C

Variation in annual rainfall

-21.12 %

Change in average humidity

-2.19 %

PM2.5 levels surged by

-13.03 %

Heatwave changed by

+7 Days

Coldwave changed by

+1 Day

Wind speeds changed by

-0.66 km/h

These indicators show that Donostia is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Aug.

Donostia Weather Forecast 30 Days (September - October 2026)
Donostia, Basque Country, Spain

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Mon. 28, Sep.
overcastOvercast
Temperature Icon26°/16°
Humidity Icon80%
Wind Icon12.2km/h
Tue. 29, Sep.
overcastOvercast
Temperature Icon27°/17°
Humidity Icon66%
Wind Icon25.6km/h
Wed. 30, Sep.
overcastOvercast
Temperature Icon25°/17°
Humidity Icon74%
Wind Icon13.7km/h
Thu. 1, Oct.
overcastOvercast
Temperature Icon21°/15°
Humidity Icon88%
Wind Icon9.7km/h
Fri. 2, Oct.
light rain showerRain Shower
Temperature Icon18°/14°
Humidity Icon97%
Wind Icon5km/h
Sat. 3, Oct.
fogFog
Temperature Icon21°/16°
Humidity Icon91%
Wind Icon9km/h
Sun. 4, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/14°
Humidity Icon81%
Wind Icon9.4km/h
Mon. 5, Oct.
light rain showerRain Shower
Temperature Icon15°/13°
Humidity Icon91%
Wind Icon16.6km/h
Tue. 6, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon21°/15°
Humidity Icon75%
Wind Icon18.2km/h
Wed. 7, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon75%
Wind Icon15.5km/h
Thu. 8, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon21°/14°
Humidity Icon74%
Wind Icon15.2km/h
Fri. 9, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon77%
Wind Icon14.8km/h
Sat. 10, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/13°
Humidity Icon78%
Wind Icon14.5km/h
Sun. 11, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon76%
Wind Icon16.7km/h
Mon. 12, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon77%
Wind Icon17.2km/h
Tue. 13, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon74%
Wind Icon16.1km/h
Wed. 14, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/13°
Humidity Icon78%
Wind Icon17.5km/h
Thu. 15, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/13°
Humidity Icon75%
Wind Icon17.1km/h
Fri. 16, Oct.
heavy rain at timesHeavy Rain
Temperature Icon20°/13°
Humidity Icon73%
Wind Icon18.8km/h
Sat. 17, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon73%
Wind Icon18.2km/h
Sun. 18, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon75%
Wind Icon17.1km/h
Mon. 19, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/14°
Humidity Icon72%
Wind Icon19.7km/h
Tue. 20, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/14°
Humidity Icon76%
Wind Icon19.6km/h
Wed. 21, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/13°
Humidity Icon74%
Wind Icon19.5km/h
Thu. 22, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/13°
Humidity Icon76%
Wind Icon19.7km/h
Fri. 23, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/13°
Humidity Icon74%
Wind Icon19.6km/h
Sat. 24, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon20°/13°
Humidity Icon72%
Wind Icon20.5km/h
Sun. 25, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/13°
Humidity Icon76%
Wind Icon17.5km/h
Mon. 26, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/13°
Humidity Icon77%
Wind Icon18.5km/h
Tue. 27, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon19°/12°
Humidity Icon73%
Wind Icon20.2km/h
Wed. 28, Oct.
moderate or heavy rain showerRain Showers
Temperature Icon18°/13°
Humidity Icon71%
Wind Icon19.8km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 29, Sep.

27°C

Low will be onTue. 27, Oct.

12°C

HumidityHumidity

High will be onFri. 2, Oct.

97%

Low will be onTue. 29, Sep.

66%

Wind SpeedWind Speed

High will be onTue. 29, Sep.

25.6km/h

Low will be onFri. 2, Oct.

5km/h

PrecipitationPrecipitation

High will be onMon. 5, Oct.

21.9mm

Low will be onSat. 3, Oct.

0.3mm

Ultraviolet IndexUV

High will be onSun. 4, Oct.

6

Low will be onMon. 28, Sep.

2.8

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