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Alcalá de Henares, Madrid Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Alcalá de Henares, Madrid?
Alcalá de Henares, Madrid gets 378 mm of precipitation a year over about 78 rainy days. July is the warmest month (average high 34°C) and January the coldest (average low 1°C).
Semi-arid climate
Alcalá de Henares, Madrid has hot summers and chilly winters. Daytime highs range from about 11°C in January to 34°C in July. October is usually the wettest month. The most comfortable time to visit is typically March to May, when daytime highs sit near 20°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 12° |
| Spring | Mar–May | 7° | 20° |
| Summer | Jun–Aug | 16° | 32° |
| Autumn | Sep–Nov | 9° | 21° |
How much rain does Alcalá de Henares get?
Alcalá de Henares gets 378 mm of precipitation in an average year, spread over about 78 days with measurable rain. That is fewer rainy days than 53% of Spain.
October is the wettest month, with 56 mm. August is the driest, with 9 mm. October has the most rainy days, about 9.
The longest dry spell in the last five years lasted 67 days, to September 1, 2023.
From October 2025 to September 2026 Alcalá de Henares got 362 mm of rain, against a normal of 378 mm for those months. January 2026 had the most, with 84 mm.
Alcalá de Henares weather by month
Alcalá de Henares weather in January
In January, Alcalá de Henares averages a high of 11°C and a low of 1°C. It gets 29 mm of precipitation over about 7 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The January record high is 22°C (2024) and the record low is -14°C (2021).
Alcalá de Henares weather in February
In February, Alcalá de Henares averages a high of 13°C and a low of 1°C. It gets 28 mm of precipitation over about 7 rainy days. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. The February record high is 23°C (2026) and the record low is -10°C (2012).
Alcalá de Henares weather in March
In March, Alcalá de Henares averages a high of 17°C and a low of 4°C. It gets 32 mm of precipitation over about 7 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The March record high is 27°C (2002) and the record low is -7°C (2023). March is one of the most comfortable months to visit.
Alcalá de Henares weather in April
In April, Alcalá de Henares averages a high of 19°C and a low of 6°C. It gets 41 mm of precipitation over about 9 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The April record high is 32°C (2023) and the record low is -3°C (2022). April is one of the most comfortable months to visit.
Alcalá de Henares weather in May
In May, Alcalá de Henares averages a high of 24°C and a low of 10°C. It gets 44 mm of precipitation over about 9 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The May record high is 37°C (2015) and the record low is -1°C (1975). May is one of the most comfortable months to visit.
Alcalá de Henares weather in June
In June, Alcalá de Henares averages a high of 30°C and a low of 14°C. It gets 22 mm of precipitation over about 5 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The June record high is 42°C (2019) and the record low is 4°C (2013).
Alcalá de Henares weather in July
In July, Alcalá de Henares averages a high of 34°C and a low of 17°C. It gets 10 mm of precipitation over about 2 rainy days. Estimated sunshine is 85% of daylight hours, derived from ERA5 cloud cover. The July record high is 42°C (2022) and the record low is 7°C (1980).
Alcalá de Henares weather in August
In August, Alcalá de Henares averages a high of 33°C and a low of 17°C. It gets 9 mm of precipitation over about 2 rainy days. Estimated sunshine is 79% of daylight hours, derived from ERA5 cloud cover. The August record high is 43°C (2021) and the record low is 7°C (1977).
Alcalá de Henares weather in September
In September, Alcalá de Henares averages a high of 28°C and a low of 13°C. It gets 24 mm of precipitation over about 5 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The September record high is 40°C (2016) and the record low is 3°C (1974).
Alcalá de Henares weather in October
In October, Alcalá de Henares averages a high of 21°C and a low of 9°C. It gets 56 mm of precipitation over about 9 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The October record high is 33°C (2023) and the record low is -2°C (1974).
Alcalá de Henares weather in November
In November, Alcalá de Henares averages a high of 15°C and a low of 4°C. It gets 47 mm of precipitation over about 8 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The November record high is 25°C (1970) and the record low is -7°C (2007).
Alcalá de Henares weather in December
In December, Alcalá de Henares averages a high of 12°C and a low of 1°C. It gets 35 mm of precipitation over about 8 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The December record high is 21°C (1979) and the record low is -9°C (2001).
Sunshine, humidity and wind in Alcalá de Henares
July is the sunniest month in Alcalá de Henares, with estimated sunshine of 85% of daylight hours from ERA5 cloud cover. March is the cloudiest, at 40%. The annual cloud-cover estimate is 54% of daylight hours; it is not a measurement of sunshine duration. Alcalá de Henares is sunnier than 66% of Spain.
Humidity peaks in December at 78% and is lowest in July at 32%.
Alcalá de Henares has about 55 days a year above 32°C. Alcalá de Henares is hotter than 90% of Spain.
First and last freeze in Alcalá de Henares
The first fall freeze in Alcalá de Henares typically comes around November 19, and the last spring freeze around April 2. That leaves a frost-free growing season of about 231 days.
Alcalá de Henares weather records
These records cover MADRID/TORREJON during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Alcalá de Henares station is 43°C, on August 14, 2021. The coldest is -14°C, on January 12, 2021.
The wettest day in the available station history brought 62 mm of precipitation, on October 19, 2023.
49 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.3°C per decade since 1970.
The best time to visit Alcalá de Henares
The most comfortable time to visit is typically March to May, when daytime highs sit near 20°C.
Winter (December–February) is chilly, with average highs around 12°C and lows near 1°C.
Spring (March–May) is warm, with average highs around 20°C and lows near 7°C.
Summer (June–August) is hot, with average highs around 32°C and lows near 16°C.
Autumn (September–November) is warm, with average highs around 21°C and lows near 9°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 1° | 11° | 29 mm | 7 | 74% | 48% | 22° | -14° |
| February | 1° | 13° | 28 mm | 7 | 65% | 50% | 23° | -10° |
| March | 4° | 17° | 32 mm | 7 | 62% | 40% | 27° | -7° |
| April | 6° | 19° | 41 mm | 9 | 54% | 45% | 32° | -3° |
| May | 10° | 24° | 44 mm | 9 | 47% | 52% | 37° | -1° |
| June | 14° | 30° | 22 mm | 5 | 43% | 58% | 42° | 4° |
| July | 17° | 34° | 10 mm | 2 | 32% | 85% | 42° | 7° |
| August | 17° | 33° | 8.9 mm | 2 | 34% | 79% | 43° | 7° |
| September | 13° | 28° | 24 mm | 5 | 51% | 58% | 40° | 3° |
| October | 9° | 21° | 56 mm | 9 | 62% | 45% | 33° | -2° |
| November | 4° | 15° | 47 mm | 8 | 75% | 42% | 25° | -7° |
| December | 1° | 12° | 35 mm | 8 | 78% | 45% | 21° | -9° |
Station: MADRID/TORREJON, 8 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.
Alcalá de Henares climate questions
How much rain does Alcalá de Henares get?
Alcalá de Henares gets 378 mm of precipitation in an average year, over about 78 rainy days.
What is the wettest month in Alcalá de Henares?
October is the wettest month in Alcalá de Henares, with 56 mm. August is the driest, with 9 mm.
How many rainy days does Alcalá de Henares have a year?
Alcalá de Henares has about 78 days with measurable rain in an average year. October has the most, about 9.
What is the hottest month in Alcalá de Henares?
July is the warmest month in Alcalá de Henares, with an average high of 34°C.
What is the coldest month in Alcalá de Henares?
January is the coldest month in Alcalá de Henares, with an average low of 1°C.
What is the record high temperature in Alcalá de Henares?
Within the available 1970–2026 station history, the record high at the Alcalá de Henares station is 43°C, set on August 14, 2021. The record low is -14°C, on January 12, 2021.
What is the sunniest month in Alcalá de Henares?
July is the sunniest month in Alcalá de Henares, with estimated sunshine of 85% of daylight hours from ERA5 cloud cover. March is the cloudiest.
When is the first frost in Alcalá de Henares?
The first fall freeze in Alcalá de Henares typically comes around November 19. The last spring freeze is around April 2.
What is the best time to visit Alcalá de Henares?
The most comfortable time to visit is typically March to May, when daytime highs sit near 20°C.