Climate averages 1991–2020

Ciudad Río Bravo weather
in May.

A hot, moderately wet month: the 4th warmest and the 8th driest of the year.

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

Average high 32.7°C Daytime mean, May
Average low 23.2°C Night-time mean, May
Rainfall 47 mm 7 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Ciudad Río Bravo · average highYear overview

May is a hot month in Ciudad Río Bravo: daytime highs average 32.7°C and nights cool to about 23.2°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 47 mm of rain on roughly 7 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 24 min on an average May day.

The nearest other city in this atlas is Reynosa (22 km away). In May its highs average 33.2°C, 0.6°C warmer than Ciudad Río Bravo, with 49 mm of rain.

Among the 153 cities listed in Mexico, Ciudad Río Bravo ranks 34th of 153 for the warmest May highs and 84th of 153 for the driest May (rainfall, lowest first). The mean May high of those 153 cities is 29.6°C; Ciudad Río Bravo is 3.0°C warmer than that mean.

From May to June, average highs rise by 1.9°C to 34.6°C, and monthly rainfall rises from 47 mm to 55 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. 10152025303540 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 Río Bravo climate table

1991–2020
Monthly climate averages for Ciudad Río Bravo, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 21.9°C12.4°C12.4°C285.110.711 h
February 24.4°C14.4°C14.4°C244.611.311 h
March 27.1°C17.1°C17.1°C365.712.012 h
April 30.2°C20.1°C20.1°C435.612.813 h
May, selected 32.7°C23.2°C23.2°C476.713.413 h
June 34.6°C25.2°C25.2°C557.713.714 h
July 35.2°C25.5°C25.5°C586.813.614 h
August 35.5°C25.7°C25.7°C447.913.113 h
September 32.4°C23.9°C23.9°C9412.912.312 h
October 29.9°C20.7°C20.7°C627.511.612 h
November 25.7°C16.5°C16.5°C375.910.911 h
December 22.6°C13.4°C13.4°C315.210.511 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 Río Bravo

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