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Bilbao, Spain climate
Cfb Oceanic / temperate
Bilbao has a mildly seasonal mild-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 26°C, while the coldest is January averaging around 5°C at night. Around 1156 mm of precipitation falls each year, peaking in November (171 mm) and easing off in July (52 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsBilbao climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 14 | 17 | 18 | 21 | 23 | 25 | 26 | 24 | 21 | 17 | 14 |
| Avg temp (°C) | 9 | 10 | 12 | 13 | 16 | 19 | 21 | 21 | 19 | 17 | 12 | 10 |
| Avg low (°C) | 5 | 5 | 7 | 8 | 11 | 14 | 16 | 16 | 14 | 12 | 8 | 6 |
| Precipitation (mm) | 130 | 109 | 98 | 97 | 76 | 58 | 52 | 53 | 75 | 112 | 171 | 127 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 14 | 17 | 18 | 21 | 23 |
| Avg temp (°C) | 9 | 10 | 12 | 13 | 16 | 19 |
| Avg low (°C) | 5 | 5 | 7 | 8 | 11 | 14 |
| Precipitation (mm) | 130 | 109 | 98 | 97 | 76 | 58 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 26 | 24 | 21 | 17 | 14 |
| Avg temp (°C) | 21 | 21 | 19 | 17 | 12 | 10 |
| Avg low (°C) | 16 | 16 | 14 | 12 | 8 | 6 |
| Precipitation (mm) | 52 | 53 | 75 | 112 | 171 | 127 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 15 | 14 | 13 | 15 | 14 | 11 | 11 | 11 | 12 | 14 | 16 | 15 |
| Days with high ≥ 32°C (days) | — | — | — | 0.1 | 0.6 | 2 | 2 | 3 | 2 | 0.1 | — | — |
| Days with low ≤ 0°C (days) | 3 | 2 | 0.7 | 0.1 | — | — | — | — | — | — | 0.5 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 15 | 14 | 13 | 15 | 14 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | 0.1 | 0.6 | 2 |
| Days with low ≤ 0°C (days) | 3 | 2 | 0.7 | 0.1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 11 | 12 | 14 | 16 | 15 |
| Days with high ≥ 32°C (days) | 2 | 3 | 2 | 0.1 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.5 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 75 | 72 | 72 | 72 | 67 | 63 | 63 | 63 | 71 | 77 | 78 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 3 | 3 | 4 | 5 | 5 | 5 | 3 | 2 | 2 |
| Partly cloudy days (30–70%) | 7 | 6 | 7 | 8 | 8 | 9 | 11 | 11 | 10 | 9 | 6 | 6 |
| Cloudy days (≥ 70%) | 22 | 20 | 20 | 19 | 20 | 17 | 15 | 15 | 15 | 19 | 21 | 23 |
| Relative humidity (%) | 79 | 78 | 78 | 78 | 78 | 78 | 76 | 73 | 72 | 74 | 77 | 79 |
| Wind speed (m/s) | 5.1 | 4.9 | 4.5 | 4.2 | 3.7 | 3.5 | 3.5 | 3.5 | 3.8 | 4.3 | 5.1 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 75 | 72 | 72 | 72 | 67 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 3 | 3 | 4 |
| Partly cloudy days (30–70%) | 7 | 6 | 7 | 8 | 8 | 9 |
| Cloudy days (≥ 70%) | 22 | 20 | 20 | 19 | 20 | 17 |
| Relative humidity (%) | 79 | 78 | 78 | 78 | 78 | 78 |
| Wind speed (m/s) | 5.1 | 4.9 | 4.5 | 4.2 | 3.7 | 3.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 63 | 63 | 71 | 77 | 78 |
| Clear days (≤ 30% cloud) | 5 | 5 | 5 | 3 | 2 | 2 |
| Partly cloudy days (30–70%) | 11 | 11 | 10 | 9 | 6 | 6 |
| Cloudy days (≥ 70%) | 15 | 15 | 15 | 19 | 21 | 23 |
| Relative humidity (%) | 76 | 73 | 72 | 74 | 77 | 79 |
| Wind speed (m/s) | 3.5 | 3.5 | 3.8 | 4.3 | 5.1 | 5.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Bilbao Aeropuerto, a weather station, about 4 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.