Climate averages 1991–2020

Mexicali weather
in January.

A mild, very dry month: the 11th warmest and the 11th driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 20.9°C Daytime mean, January
Average low 9.7°C Night-time mean, January
Rainfall 9.4 mm 2 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Mexicali · average highYear overview

January is a mild month in Mexicali: daytime highs average 20.9°C and nights cool to about 9.7°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 9.4 mm of rain on roughly 2 days, which makes January a very dry month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 16 min on an average January day.

The nearest other city in this atlas is San Luis Río Colorado (67 km away). In January its highs average 21.0°C, about as warm as Mexicali, with 9.2 mm of rain.

Among the 153 cities listed in Mexico, Mexicali ranks joint 90th of 153 for the warmest January highs and 25th of 153 for the driest January (rainfall, lowest first). The mean January high of those 153 cities is 22.4°C; Mexicali is 1.5°C cooler than that mean.

From January to February, average highs rise by 2.1°C to 22.9°C, and monthly rainfall rises from 9.4 mm to 12 mm.

The annual picture

January in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 51015202530354045 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Mexicali climate table

1991–2020
Monthly climate averages for Mexicali, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January, selected 20.9°C9.7°C9.7°C9.41.710.310 h
February 22.9°C10.7°C10.7°C122.011.011 h
March 26.9°C12.9°C12.9°C7.91.112.012 h
April 30.6°C15.3°C15.3°C2.90.513.013 h
May 34.9°C18.8°C18.8°C0.80.213.814 h
June 40.0°C23.1°C23.1°C0.20.014.314 h
July 42.1°C27.5°C27.5°C5.41.514.114 h
August 41.6°C27.9°C27.9°C8.72.513.413 h
September 38.3°C24.3°C24.3°C8.91.412.412 h
October 31.9°C18.4°C18.4°C5.20.711.411 h
November 25.0°C13.2°C13.2°C4.30.610.511 h
December 19.8°C9.3°C9.3°C9.11.610.010 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Mexicali

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mexicali) is explained once on the Mexicali year overview and on the Sources, method and limits page.