Climate averages 1991–2020

Chimaltenango weather
in December.

A warm, very dry month: the 10th warmest and the 3rd driest of the year. Meets the pleasant-weather rule

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

Average high 22.0°C Daytime mean, December
Average low 12.5°C Night-time mean, December
Rainfall 13 mm 3 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Chimaltenango · average highYear overview

December is a warm month in Chimaltenango: daytime highs average 22.0°C and nights cool to about 12.5°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 13 mm of rain on roughly 3 days, which makes December a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 17 min on an average December day.

The nearest other city in this atlas is San Juan Sacatepéquez (20 km away). In December its highs average 21.8°C, about as warm as Chimaltenango, with 13 mm of rain.

Among the 23 cities listed in Guatemala, Chimaltenango ranks 15th of 23 for the warmest December highs and joint 7th of 23 for the driest December (rainfall, lowest first). The mean December high of those 23 cities is 24.1°C; Chimaltenango is 2.1°C cooler than that mean.

From December to January, average highs rise by 0.5°C to 22.5°C, and monthly rainfall falls from 13 mm to 6.3 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 2500

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

Every month, side by side

Chimaltenango climate table

1991–2020
Monthly climate averages for Chimaltenango, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 22.5°C12.1°C12.1°C6.31.811.411 h
February 24.1°C12.6°C12.6°C5.11.311.712 h
March 25.2°C13.5°C13.5°C153.812.012 h
April 25.5°C14.7°C14.7°C517.912.512 h
May 24.1°C15.4°C15.4°C13217.712.813 h
June 22.5°C15.2°C15.2°C22123.913.013 h
July 22.7°C14.7°C14.7°C11617.312.913 h
August 23.0°C14.9°C14.9°C13619.112.613 h
September 22.4°C15.0°C15.0°C20424.112.212 h
October 21.7°C14.5°C14.5°C15219.011.812 h
November 21.5°C13.3°C13.3°C417.111.511 h
December, selected 22.0°C12.5°C12.5°C132.811.311 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 Chimaltenango

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

San Juan Sacatepéquez lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.