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Mexicali, Baja California Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Mexicali, Baja California?
Mexicali, Baja California gets 64 mm of precipitation a year over about 14 rainy days. July is the warmest month (average high 42°C) and December the coldest (average low 6°C).
Desert climate
Mexicali, Baja California has hot summers and warm winters. Daytime highs range from about 21°C in December to 42°C in July. February is usually the wettest month. The most comfortable time to visit is typically January and November to December, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 7° | 22° |
| Spring | Mar–May | 14° | 31° |
| Summer | Jun–Aug | 24° | 41° |
| Autumn | Sep–Nov | 17° | 33° |
How much rain does Mexicali get?
Mexicali gets 64 mm of precipitation in an average year, spread over about 14 days with measurable rain. That is fewer rainy days than 97% of the US.
February is the wettest month, with 11 mm. June is the driest, with 0 mm. February has the most rainy days, about 3.
The longest dry spell in the last five years lasted 356 days, to March 6, 2025.
From October 2025 to September 2026 Mexicali got 76 mm of rain, against a normal of 64 mm for those months. November 2025 had the most, with 21 mm.
Mexicali weather by month
Mexicali weather in January
In January, Mexicali averages a high of 22°C and a low of 7°C. It gets 10 mm of precipitation over about 2 rainy days. Estimated sunshine is 68% of daylight hours, derived from ERA5 cloud cover. The January record high is 32°C (1971) and the record low is -7°C (1971). January is one of the most comfortable months to visit.
Mexicali weather in February
In February, Mexicali averages a high of 23°C and a low of 8°C. It gets 11 mm of precipitation over about 3 rainy days. Estimated sunshine is 74% of daylight hours, derived from ERA5 cloud cover. The February record high is 37°C (2026) and the record low is -6°C (1985).
Mexicali weather in March
In March, Mexicali averages a high of 27°C and a low of 11°C. It gets 7 mm of precipitation over about 2 rainy days. Estimated sunshine is 72% of daylight hours, derived from ERA5 cloud cover. The March record high is 42°C (2026) and the record low is -6°C (1985).
Mexicali weather in April
In April, Mexicali averages a high of 30°C and a low of 14°C. It gets 2 mm of precipitation over about 1 rainy days. Estimated sunshine is 86% of daylight hours, derived from ERA5 cloud cover. The April record high is 41°C (1989) and the record low is -1°C (1983).
Mexicali weather in May
In May, Mexicali averages a high of 34°C and a low of 17°C. It gets 1 mm of precipitation over about 0 rainy days. Estimated sunshine is 92% of daylight hours, derived from ERA5 cloud cover. The May record high is 47°C (1973) and the record low is 6°C (1975).
Mexicali weather in June
In June, Mexicali averages a high of 39°C and a low of 22°C. It gets 0 mm of precipitation over about 0 rainy days. Estimated sunshine is 87% of daylight hours, derived from ERA5 cloud cover. The June record high is 49°C (1970) and the record low is 10°C (1971).
Mexicali weather in July
In July, Mexicali averages a high of 42°C and a low of 26°C. It gets 2 mm of precipitation over about 1 rainy days. Estimated sunshine is 78% of daylight hours, derived from ERA5 cloud cover. The July record high is 50°C (1995) and the record low is 16°C (1974).
Mexicali weather in August
In August, Mexicali averages a high of 42°C and a low of 26°C. It gets 6 mm of precipitation over about 1 rainy days. Estimated sunshine is 80% of daylight hours, derived from ERA5 cloud cover. The August record high is 49°C (1972) and the record low is 13°C (1973).
Mexicali weather in September
In September, Mexicali averages a high of 39°C and a low of 23°C. It gets 6 mm of precipitation over about 1 rainy days. Estimated sunshine is 88% of daylight hours, derived from ERA5 cloud cover. The September record high is 48°C (1971) and the record low is 9°C (1978).
Mexicali weather in October
In October, Mexicali averages a high of 33°C and a low of 17°C. It gets 5 mm of precipitation over about 1 rainy days. Estimated sunshine is 87% of daylight hours, derived from ERA5 cloud cover. The October record high is 45°C (2024) and the record low is 2°C (1971).
Mexicali weather in November
In November, Mexicali averages a high of 26°C and a low of 11°C. It gets 4 mm of precipitation over about 1 rainy days. Estimated sunshine is 78% of daylight hours, derived from ERA5 cloud cover. The November record high is 37°C (1980) and the record low is -2°C (1976). November is one of the most comfortable months to visit.
Mexicali weather in December
In December, Mexicali averages a high of 21°C and a low of 6°C. It gets 9 mm of precipitation over about 2 rainy days. Estimated sunshine is 68% of daylight hours, derived from ERA5 cloud cover. The December record high is 31°C (2021) and the record low is -6°C (1990). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Mexicali
May is the sunniest month in Mexicali, with estimated sunshine of 92% of daylight hours from ERA5 cloud cover. January is the cloudiest, at 68%. The annual cloud-cover estimate is 80% of daylight hours; it is not a measurement of sunshine duration. Mexicali is sunnier than 99% of the US.
Humidity peaks in December at 32% and is lowest in June at 19%.
Mexicali has about 159 days a year above 32°C. Mexicali is hotter than 99% of the US.
First and last freeze in Mexicali
The first fall freeze in Mexicali typically comes around December 13, and the last spring freeze around January 29. That leaves a frost-free growing season of about 318 days.
Mexicali weather records
These records cover EL CENTRO 2 SSW during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Mexicali station is 50°C, on July 28, 1995. The coldest is -7°C, on January 5, 1971.
The wettest day in the available station history brought 59 mm of precipitation, on September 10, 1976.
24 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 Mexicali
The most comfortable time to visit is typically January and November to December, when daytime highs sit near 23°C.
Winter (December–February) is warm, with average highs around 22°C and lows near 7°C.
Spring (March–May) is hot, with average highs around 30°C and lows near 14°C.
Summer (June–August) is hot, with average highs around 41°C and lows near 24°C.
Autumn (September–November) is hot, with average highs around 33°C and lows near 17°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 7° | 22° | 9.9 mm | 2 | 29% | 68% | 32° | -7° |
| February | 8° | 23° | 11 mm | 3 | 24% | 74% | 37° | -6° |
| March | 11° | 27° | 7.4 mm | 2 | 28% | 72% | 42° | -6° |
| April | 14° | 30° | 1.8 mm | 1 | 20% | 86% | 41° | -1° |
| May | 17° | 34° | 1.0 mm | 0 | 20% | 92% | 47° | 6° |
| June | 22° | 39° | 0.0 mm | 0 | 19% | 87% | 49° | 10° |
| July | 26° | 42° | 2.0 mm | 1 | 22% | 78% | 50° | 16° |
| August | 26° | 42° | 5.8 mm | 1 | 27% | 80% | 49° | 13° |
| September | 23° | 39° | 6.3 mm | 1 | 25% | 88% | 48° | 9° |
| October | 17° | 33° | 5.3 mm | 1 | 23% | 87% | 45° | 2° |
| November | 11° | 26° | 4.3 mm | 1 | 25% | 78% | 37° | -2° |
| December | 6° | 21° | 9.4 mm | 2 | 32% | 68% | 31° | -6° |
Station: EL CENTRO 2 SSW, 19 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.
Mexicali climate questions
How much rain does Mexicali get?
Mexicali gets 64 mm of precipitation in an average year, over about 14 rainy days.
What is the wettest month in Mexicali?
February is the wettest month in Mexicali, with 11 mm. June is the driest, with 0 mm.
How many rainy days does Mexicali have a year?
Mexicali has about 14 days with measurable rain in an average year. February has the most, about 3.
What is the hottest month in Mexicali?
July is the warmest month in Mexicali, with an average high of 42°C.
What is the coldest month in Mexicali?
December is the coldest month in Mexicali, with an average low of 6°C.
What is the record high temperature in Mexicali?
Within the available 1970–2026 station history, the record high at the Mexicali station is 50°C, set on July 28, 1995. The record low is -7°C, on January 5, 1971.
What is the sunniest month in Mexicali?
May is the sunniest month in Mexicali, with estimated sunshine of 92% of daylight hours from ERA5 cloud cover. January is the cloudiest.
When is the first frost in Mexicali?
The first fall freeze in Mexicali typically comes around December 13. The last spring freeze is around January 29.
What is the best time to visit Mexicali?
The most comfortable time to visit is typically January and November to December, when daytime highs sit near 23°C.