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Bilbao, Basque Country Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Bilbao, Basque Country?
Bilbao, Basque Country gets 1154 mm of precipitation a year over about 162 rainy days. August is the warmest month (average high 26°C) and February the coldest (average low 5°C).
Oceanic climate
Bilbao, Basque Country has warm summers and mild winters. Daytime highs range from about 14°C in January to 26°C in August. November is usually the wettest month. The most comfortable time to visit is typically April to October, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 6° | 14° |
| Spring | Mar–May | 8° | 18° |
| Summer | Jun–Aug | 15° | 25° |
| Autumn | Sep–Nov | 11° | 21° |
How much rain does Bilbao get?
Bilbao gets 1154 mm of precipitation in an average year, spread over about 162 days with measurable rain. That is more rainy days than 95% of Spain.
November is the wettest month, with 168 mm. July is the driest, with 52 mm. November has the most rainy days, about 16.
The longest dry spell in the last five years lasted 14 days, to July 20, 2022.
From October 2025 to September 2026 Bilbao got 1181 mm of rain, against a normal of 1154 mm for those months. November 2025 had the most, with 219 mm.
Bilbao weather by month
Bilbao weather in January
In January, Bilbao averages a high of 13°C and a low of 6°C. It gets 130 mm of precipitation over about 16 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The January record high is 25°C (2023) and the record low is -7°C (1985).
Bilbao weather in February
In February, Bilbao averages a high of 14°C and a low of 5°C. It gets 109 mm of precipitation over about 14 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The February record high is 27°C (2026) and the record low is -6°C (1993).
Bilbao weather in March
In March, Bilbao averages a high of 17°C and a low of 7°C. It gets 98 mm of precipitation over about 13 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The March record high is 30°C (2023) and the record low is -4°C (2005).
Bilbao weather in April
In April, Bilbao averages a high of 18°C and a low of 8°C. It gets 97 mm of precipitation over about 15 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The April record high is 33°C (2010) and the record low is -1°C (1991). April is one of the most comfortable months to visit.
Bilbao weather in May
In May, Bilbao averages a high of 21°C and a low of 11°C. It gets 76 mm of precipitation over about 14 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The May record high is 37°C (2026) and the record low is 1°C (1976). May is one of the most comfortable months to visit.
Bilbao weather in June
In June, Bilbao averages a high of 23°C and a low of 14°C. It gets 58 mm of precipitation over about 11 rainy days. Estimated sunshine is 29% of daylight hours, derived from ERA5 cloud cover. The June record high is 43°C (2026) and the record low is 3°C (1975). June is one of the most comfortable months to visit.
Bilbao weather in July
In July, Bilbao averages a high of 26°C and a low of 16°C. It gets 52 mm of precipitation over about 11 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The July record high is 42°C (2020) and the record low is 8°C (1972). July is one of the most comfortable months to visit.
Bilbao weather in August
In August, Bilbao averages a high of 26°C and a low of 16°C. It gets 53 mm of precipitation over about 11 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The August record high is 44°C (2023) and the record low is 8°C (1972). August is one of the most comfortable months to visit.
Bilbao weather in September
In September, Bilbao averages a high of 24°C and a low of 14°C. It gets 75 mm of precipitation over about 12 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The September record high is 42°C (1988) and the record low is 4°C (1972). September is one of the most comfortable months to visit.
Bilbao weather in October
In October, Bilbao averages a high of 21°C and a low of 12°C. It gets 112 mm of precipitation over about 14 rainy days. Estimated sunshine is 34% of daylight hours, derived from ERA5 cloud cover. The October record high is 37°C (2023) and the record low is 2°C (1991). October is one of the most comfortable months to visit.
Bilbao weather in November
In November, Bilbao averages a high of 17°C and a low of 8°C. It gets 168 mm of precipitation over about 16 rainy days. Estimated sunshine is 31% of daylight hours, derived from ERA5 cloud cover. The November record high is 28°C (2009) and the record low is -6°C (1988).
Bilbao weather in December
In December, Bilbao averages a high of 14°C and a low of 6°C. It gets 127 mm of precipitation over about 16 rainy days. Estimated sunshine is 30% of daylight hours, derived from ERA5 cloud cover. The December record high is 25°C (2021) and the record low is -6°C (2001).
Sunshine, humidity and wind in Bilbao
July is the sunniest month in Bilbao, with estimated sunshine of 43% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 29%. The annual cloud-cover estimate is 34% of daylight hours; it is not a measurement of sunshine duration. Bilbao is cloudier than 95% of Spain.
Humidity peaks in June at 82% and is lowest in March at 73%.
Bilbao has about 9 days a year above 32°C. Bilbao is cooler than 78% of Spain.
First and last freeze in Bilbao
The first fall freeze in Bilbao typically comes around December 5, and the last spring freeze around February 23. That leaves a frost-free growing season of about 285 days.
Bilbao weather records
These records cover BILBAO AEROPUERTO during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Bilbao station is 44°C, on August 23, 2023. The coldest is -7°C, on January 9, 1985.
The wettest day in the available station history brought 108 mm of precipitation, on June 16, 2010.
33 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.4°C per decade since 1970.
The best time to visit Bilbao
The most comfortable time to visit is typically April to October, when daytime highs sit near 23°C.
Winter (December–February) is mild, with average highs around 14°C and lows near 6°C.
Spring (March–May) is mild, with average highs around 19°C and lows near 9°C.
Summer (June–August) is warm, with average highs around 25°C and lows near 15°C. It can feel humid.
Autumn (September–November) is warm, with average highs around 21°C and lows near 11°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 6° | 13° | 130 mm | 16 | 77% | 32% | 25° | -7° |
| February | 5° | 14° | 109 mm | 14 | 75% | 35% | 27° | -6° |
| March | 7° | 17° | 98 mm | 13 | 73% | 33% | 30° | -4° |
| April | 8° | 18° | 97 mm | 15 | 76% | 32% | 33° | -1° |
| May | 11° | 21° | 76 mm | 14 | 80% | 32% | 37° | 1° |
| June | 14° | 23° | 58 mm | 11 | 82% | 29% | 43° | 3° |
| July | 16° | 26° | 52 mm | 11 | 80% | 43% | 42° | 8° |
| August | 16° | 26° | 53 mm | 11 | 79% | 42% | 44° | 8° |
| September | 14° | 24° | 75 mm | 12 | 78% | 39% | 42° | 4° |
| October | 12° | 21° | 112 mm | 14 | 75% | 34% | 37° | 2° |
| November | 8° | 17° | 168 mm | 16 | 78% | 31% | 28° | -6° |
| December | 6° | 14° | 127 mm | 16 | 78% | 30% | 25° | -6° |
Station: BILBAO AEROPUERTO, 4 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Bilbao climate questions
How much rain does Bilbao get?
Bilbao gets 1154 mm of precipitation in an average year, over about 162 rainy days.
What is the wettest month in Bilbao?
November is the wettest month in Bilbao, with 168 mm. July is the driest, with 52 mm.
How many rainy days does Bilbao have a year?
Bilbao has about 162 days with measurable rain in an average year. November has the most, about 16.
What is the hottest month in Bilbao?
August is the warmest month in Bilbao, with an average high of 26°C.
What is the coldest month in Bilbao?
February is the coldest month in Bilbao, with an average low of 5°C.
What is the record high temperature in Bilbao?
Within the available 1970–2026 station history, the record high at the Bilbao station is 44°C, set on August 23, 2023. The record low is -7°C, on January 9, 1985.
What is the sunniest month in Bilbao?
July is the sunniest month in Bilbao, with estimated sunshine of 43% of daylight hours from ERA5 cloud cover. June is the cloudiest.
When is the first frost in Bilbao?
The first fall freeze in Bilbao typically comes around December 5. The last spring freeze is around February 23.
What is the best time to visit Bilbao?
The most comfortable time to visit is typically April to October, when daytime highs sit near 23°C.