Climate averages 1991–2020

Ciudad Obregón weather
in May.

A very hot, very dry month: the 4th warmest and the driest of the year.

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

Average high 36.0°C Daytime mean, May
Average low 18.7°C Night-time mean, May
Rainfall <1 mm Almost no rain
Daylight 13 h Sunrise to sunset, per day
Every month in Ciudad Obregón · average highYear overview

May is a very hot month in Ciudad Obregón: daytime highs average 36.0°C and nights cool to about 18.7°C. By daytime temperature it is the 4th warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical May (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 29 min on an average May day.

The nearest other city in this atlas is Navojoa (67 km away). In May its highs average 36.3°C, about as warm as Ciudad Obregón, with almost no rain (under 1 mm).

Among the 153 cities listed in Mexico, Ciudad Obregón ranks 5th of 153 for the warmest May highs and joint 11th of 153 for the driest May (rainfall, lowest first). The mean May high of those 153 cities is 29.6°C; Ciudad Obregón is 6.4°C warmer than that mean.

From May to June, average highs rise by 2.5°C to 38.5°C, and monthly rainfall rises from under 1 mm to 9.0 mm.

The annual picture

May 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, selected 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 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

May 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.