Mexicali climate
Mexicali (Baja California, Mexico) has a hot desert climate (Köppen BWh). The average temperature over the year is 24 °C76 °F, and about 126 mm5.0 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Mexicali climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 2169 | 846 | 1457 | 170.7 | 0 |
| Feb | 2373 | 948 | 1660 | 240.9 | 0 |
| Mar | 2781 | 1152 | 1967 | 130.5 | 0 |
| Apr | 3188 | 1457 | 2272 | 70.3 | 0 |
| May | 3697 | 1864 | 2780 | 30.1 | 0 |
| Jun | 42108 | 2373 | 3391 | 00.0 | 0 |
| Jul | 44112 | 2882 | 3697 | 60.2 | 0 |
| Aug | 44111 | 2882 | 3696 | 70.3 | 0 |
| Sep | 40104 | 2476 | 3290 | 80.3 | 0 |
| Oct | 3391 | 1864 | 2678 | 90.4 | 0 |
| Nov | 2679 | 1254 | 1966 | 100.4 | 0 |
| Dec | 2068 | 745 | 1457 | 210.8 | 0 |
| Year | 44112 | 745 | 2476 | 1265.0 | 1 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 44% | 39% | 3.6 | 10:13 |
| Feb | 43% | 38% | 4.5 | 10:59 |
| Mar | 39% | 33% | 6.0 | 11:53 |
| Apr | 33% | 27% | 7.3 | 12:57 |
| May | 28% | 23% | 8.1 | 13:49 |
| Jun | 21% | 18% | 8.4 | 14:17 |
| Jul | 23% | 28% | 7.7 | 14:06 |
| Aug | 24% | 25% | 7.2 | 13:21 |
| Sep | 26% | 23% | 6.3 | 12:19 |
| Oct | 30% | 25% | 5.1 | 11:18 |
| Nov | 35% | 32% | 3.9 | 10:26 |
| Dec | 44% | 40% | 3.2 | 10:01 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Mexicali is like
The warmest month is July, with an average high of 44 °C112 °F and a low of 28 °C82 °F. The coldest is December, when highs average 20 °C68 °F and lows 7 °C45 °F. Seasons are strongly marked: the warmest month is on average 22.3 °C40.2 °F warmer than the coldest.
It is very dry, with only 126 mm5.0 in of precipitation in an average year. The wettest three-month stretch is December–February, which brings 49% of the annual total. Months with less than 20 mm0.8 in on average: January and March–November. The wettest month is February (24 mm0.9 in), the driest is June (0 mm0.0 in).
Relative humidity ranges from 21% in June to 44% in December. The clearest skies (lowest average cloud amount, 18%) are typical of June. Average wind speed near the ground ranges from 7 km/h (4 mph) in January to 11 km/h (7 mph) in May. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Mexicali
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 20 °C68 °F to 27 °C81 °F with 10 mm0.4 in to 24 mm0.9 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 44 °C112 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Mexicali
- Winter (December–February) — highs 2068 to 23 °C73 °F, lows 745 to 9 °C48 °F, about 21 mm0.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2781 to 36 °C97 °F, lows 1152 to 18 °C64 °F, about 8 mm0.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 42108 to 44 °C112 °F, lows 2373 to 28 °C82 °F, about 4 mm0.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2679 to 40 °C104 °F, lows 1254 to 24 °C76 °F, about 9 mm0.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Mexicali compares
Compared with Tijuana, about 146 km to the west, Mexicali is on average 5.5 °C9.9 °F warmer and receives 53% less precipitation (126 mm5.0 in vs 269 mm11 in). The difference is largest in July (11.6 °C20.9 °F warmer).
Of the 96 places in Mexico covered by World Climates, Mexicali is the 37th warmest by annual mean temperature and the 95th wettest by annual precipitation. See all of them on the Mexico climate page.
Places in other countries with the most similar temperature and rainfall pattern: Yuma (United States, BWh), Peoria (United States, BWh) and Phoenix (United States, BWh).
Nearby places
- San Luis Río Colorado 67 km · 24 °C74 °F · 84 mm3.3 in
- Yuma 78 km · 23 °C74 °F · 99 mm3.9 in
- Ensenada 137 km · 19 °C66 °F · 255 mm10 in
- El Cajon 142 km · 20 °C68 °F · 320 mm13 in
- Tijuana 146 km · 19 °C66 °F · 269 mm11 in
- San Diego 160 km · 19 °C67 °F · 269 mm11 in
- Escondido 162 km · 20 °C67 °F · 320 mm13 in
- Temecula 185 km · 20 °C68 °F · 299 mm12 in
Frequently asked questions
What is the warmest month in Mexicali?
July is the warmest month in Mexicali, with an average high of 44 °C (112 °F) and an average low of 28 °C (82 °F).
What is the coldest month in Mexicali?
December is the coldest month, with an average high of 20 °C (68 °F) and an average low of 7 °C (45 °F).
When does it rain the most in Mexicali?
February is the wettest month with about 24 mm (0.9 in) of precipitation; June is the driest with about 0 mm (0.0 in).
What is the best time to visit Mexicali?
Judging by long-term averages, the most comfortable months are November–March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 157 m, while Mexicali lies at about 4 m. Temperatures on this page were therefore adjusted by +1 °C1.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.