ClimateAverages

Irun Climate

Basque Country, Spain · population 60,951 · 189 weather stations within 200 km · records 1750 to 2025

Average annual daytime high
17.1°C
Warmest month · August
23.2°C
Typical daytime high
Coldest month · January
5.0°C
Typical overnight low

Irun has an average annual daytime high of 17.1°C, based on the 1951 to 1980 baseline. Its warmest month is August, when highs typically reach 23.2°C, and its coldest is January, with overnight lows near 5.0°C.

Month by month averages

MonthAvg highAvg low
January11.4°C5.0°CColdest
February12.0°C5.4°C
March14.1°C6.7°C
April15.2°C8.3°C
May18.4°C10.9°C
June20.7°C13.5°C
July22.7°C15.6°C
August23.2°C15.9°CWarmest
September22.1°C14.6°C
October18.8°C11.6°C
November14.5°C7.9°C
December12.1°C6.0°C

Temperature range across the year

3°9°14°20°25°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2022
+2.4°C vs. 1951–1980
Coldest year on record
1784
-1.6°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Irun getting hotter?

Since 1900, Irun's average temperature has risen by +2.3°C. Compared to the earliest station records that begin in 1750, warming totals +2.7°C.

13.2°13.9°14.6°15.3°16.0°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
April to October

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Irun?

Irun's average annual daytime high is 17.1°C, based on the 1951 to 1980 baseline period. The warmest month is August, with highs averaging 23.2°C, and the coldest is January, with lows averaging 5.0°C.

What is the warmest month in Irun?

August is the warmest month in Irun, with typical daytime highs of 23.2°C.

What is the hottest year on record for Irun?

2022 is the hottest year on record for Irun, running +2.4°C above the 1951 to 1980 baseline.

Is Irun getting hotter?

Yes. Since 1900, Irun has warmed by roughly +2.3°C.

When is the best time to visit Irun?

April to October typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.