Irun, Spain climate
Cfb Oceanic / temperate
Irun has a mildly seasonal mild-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 25°C, while the coldest is January averaging around 5°C at night. Around 1474 mm of precipitation falls each year, peaking in November (207 mm) and easing off in July (77 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Irun climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 13 | 15 | 17 | 20 | 22 | 24 | 25 | 23 | 20 | 15 | 13 |
| Avg temp (°C) | 9 | 9 | 11 | 13 | 16 | 19 | 21 | 21 | 19 | 16 | 12 | 9 |
| Avg low (°C) | 5 | 5 | 7 | 9 | 12 | 15 | 17 | 17 | 14 | 12 | 8 | 6 |
| Precipitation (mm) | 140 | 110 | 103 | 118 | 116 | 99 | 77 | 87 | 118 | 147 | 207 | 151 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 13 | 15 | 17 | 20 | 22 |
| Avg temp (°C) | 9 | 9 | 11 | 13 | 16 | 19 |
| Avg low (°C) | 5 | 5 | 7 | 9 | 12 | 15 |
| Precipitation (mm) | 140 | 110 | 103 | 118 | 116 | 99 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 25 | 23 | 20 | 15 | 13 |
| Avg temp (°C) | 21 | 21 | 19 | 16 | 12 | 9 |
| Avg low (°C) | 17 | 17 | 14 | 12 | 8 | 6 |
| Precipitation (mm) | 77 | 87 | 118 | 147 | 207 | 151 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 69 | 67 | 70 | 70 | 66 | 63 | 62 | 61 | 68 | 73 | 73 |
| Relative humidity (%) | 86 | 84 | 82 | 80 | 79 | 77 | 74 | 70 | 72 | 78 | 84 | 86 |
| Wind speed (mph) | 5.7 | 5.6 | 5.4 | 5.4 | 4.9 | 4.8 | 4.8 | 4.6 | 4.6 | 5.1 | 5.6 | 5.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 69 | 67 | 70 | 70 | 66 |
| Relative humidity (%) | 86 | 84 | 82 | 80 | 79 | 77 |
| Wind speed (mph) | 5.7 | 5.6 | 5.4 | 5.4 | 4.9 | 4.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 62 | 61 | 68 | 73 | 73 |
| Relative humidity (%) | 74 | 70 | 72 | 78 | 84 | 86 |
| Wind speed (mph) | 4.8 | 4.6 | 4.6 | 5.1 | 5.6 | 5.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Biarritz-pays-basque, a weather station, about 25 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.