Climate averages 1991–2020

San Francisco del Rincón weather
in December.

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

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

Average high 23.2°C Daytime mean, December
Average low 9.4°C Night-time mean, December
Rainfall 5.6 mm 1 day with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in San Francisco del Rincón · average highYear overview

December is a warm month in San Francisco del Rincón: daytime highs average 23.2°C and nights cool to about 9.4°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 5.6 mm of rain on roughly 1 day, which makes December a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 53 min on an average December day.

The nearest other city in this atlas is León de los Aldama (22 km away). In December its highs average 22.8°C, about as warm as San Francisco del Rincón, with 5.6 mm of rain.

Among the 153 cities listed in Mexico, San Francisco del Rincón ranks 63rd of 153 for the warmest December highs and joint 22nd of 153 for the driest December (rainfall, lowest first). The mean December high of those 153 cities is 22.7°C; San Francisco del Rincón is 0.5°C warmer than that mean.

From December to January, average highs fall by 0.5°C to 22.7°C, and monthly rainfall rises from 5.6 mm to 13 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. 5101520253035 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 1500

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

Every month, side by side

San Francisco del Rincón climate table

1991–2020
Monthly climate averages for San Francisco del Rincón, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 22.7°C8.6°C8.6°C132.211.011 h
February 25.0°C9.9°C9.9°C101.611.411 h
March 27.6°C11.7°C11.7°C8.41.512.012 h
April 29.9°C14.2°C14.2°C7.21.712.613 h
May 30.5°C16.1°C16.1°C275.613.113 h
June 28.0°C16.4°C16.4°C11213.713.413 h
July 25.3°C15.2°C15.2°C13518.313.313 h
August 25.6°C15.2°C15.2°C11716.612.813 h
September 24.7°C14.8°C14.8°C10014.212.312 h
October 25.2°C13.2°C13.2°C346.311.712 h
November 24.4°C11.0°C11.0°C9.82.111.211 h
December, selected 23.2°C9.4°C9.4°C5.61.210.911 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 San Francisco del Rincón

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 San Francisco del Rincón) is explained once on the San Francisco del Rincón year overview and on the Sources, method and limits page.

León de los Aldama lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.