Climate averages 1991–2020

Ciudad Obregón weather
in December.

A warm, fairly dry month: the coolest and the 7th driest of the year. Meets the pleasant-weather rule

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

Average high 25.5°C Daytime mean, December
Average low 11.0°C Night-time mean, December
Rainfall 17 mm 2 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Ciudad Obregón · average highYear overview

December is a warm month in Ciudad Obregón: daytime highs average 25.5°C and nights cool to about 11.0°C. By daytime temperature it is the coolest month of the year.

Expect about 17 mm of rain on roughly 2 days, which makes December a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 26 min on an average December day.

The nearest other city in this atlas is Navojoa (67 km away). In December its highs average 26.1°C, 0.6°C warmer than Ciudad Obregón, with 18 mm of rain.

Among the 153 cities listed in Mexico, Ciudad Obregón ranks joint 38th of 153 for the warmest December highs and joint 93rd of 153 for the driest December (rainfall, lowest first). The mean December high of those 153 cities is 22.7°C; Ciudad Obregón is 2.8°C warmer than that mean.

From December to January, average highs rise by 0.3°C to 25.8°C, and monthly rainfall falls from 17 mm to 11 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. 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 1000

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

Every month, side by side

Ciudad Obregón climate table

1991–2020
Monthly climate averages for Ciudad Obregón, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 25.8°C10.6°C10.6°C111.810.611 h
February 26.9°C11.5°C11.5°C161.711.211 h
March 29.8°C13.2°C13.2°C6.90.712.012 h
April 32.9°C15.5°C15.5°C1.30.212.813 h
May 36.0°C18.7°C18.7°C0.80.213.513 h
June 38.5°C24.0°C24.0°C9.01.013.814 h
July 37.3°C26.6°C26.6°C579.713.714 h
August 36.4°C26.5°C26.5°C8413.213.113 h
September 35.5°C25.1°C25.1°C829.912.312 h
October 34.6°C20.7°C20.7°C262.711.512 h
November 30.0°C15.0°C15.0°C181.910.811 h
December, selected 25.5°C11.0°C11.0°C172.110.410 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 Ciudad Obregón

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