Climate averages 1991–2020

Comitán weather
in December.

A warm, very dry month: one of the coolest and the 4th driest of the year. Meets the pleasant-weather rule

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

Average high 22.3°C Daytime mean, December
Average low 12.7°C Night-time mean, December
Rainfall 10 mm 2 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Comitán · average highYear overview

December is a warm month in Comitán: daytime highs average 22.3°C and nights cool to about 12.7°C. By daytime temperature it is one of the coolest months of the year.

Expect about 10 mm of rain on roughly 2 days, which makes December a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 11 min on an average December day.

The nearest other city in this atlas is San Cristóbal de las Casas (76 km away). In December its highs average 19.7°C, 2.7°C cooler than Comitán, with 18 mm of rain.

Among the 153 cities listed in Mexico, Comitán ranks 75th of 153 for the warmest December highs and joint 64th of 153 for the driest December (rainfall, lowest first). The mean December high of those 153 cities is 22.7°C; Comitán is 0.4°C cooler than that mean.

From December to January, average highs rise by 0.2°C to 22.5°C, and monthly rainfall falls from 10 mm to 6.5 mm.

The annual picture

December 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. 1015202530 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 4000

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

Every month, side by side

Comitán climate table

1991–2020
Monthly climate averages for Comitán, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 22.5°C12.4°C12.4°C6.51.211.311 h
February 24.3°C12.8°C12.8°C3.30.611.612 h
March 26.1°C13.6°C13.6°C8.82.012.012 h
April 27.4°C15.1°C15.1°C356.012.512 h
May 26.2°C16.0°C16.0°C15416.712.913 h
June 23.9°C16.3°C16.3°C28822.713.113 h
July 24.3°C15.8°C15.8°C12713.713.013 h
August 24.7°C16.0°C16.0°C22217.312.713 h
September 23.5°C16.0°C16.0°C35523.812.212 h
October 22.8°C15.2°C15.2°C21817.911.812 h
November 22.3°C13.7°C13.7°C426.411.411 h
December, selected 22.3°C12.7°C12.7°C101.811.211 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

December in nearby cities

Distance from Comitán

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 Comitán) is explained once on the Comitán year overview and on the Sources, method and limits page.