Weather in Río Grande in September

General weather information about Río Grande

Average annual temperature is 20.1 °C

Absolute maximum temperature: 37.4 °C

Absolute minimum temperature: 3.9 °C

Number of sunny days: 247 days

Number of rainy days: 118 days

* Weather data for Río Grande Mexico is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	28.0	31.5	33.2	33.6	35.4	37.4	32.2	31.6	32.7	31.8	30.6	26.3
Average daytime temperature (°C)	24.9	27.3	30.0	31.4	31.7	34.7	30.0	28.5	29.9	27.5	27.0	22.8
Average temperature (°C)	15.6	18.0	20.7	22.4	23.2	25.7	21.6	20.8	21.3	19.6	17.9	14.7
Average night temperature (°C)	7.3	9.4	11.5	13.6	15.0	17.0	15.1	15.2	14.2	13.9	10.7	8.8
Absolute minimum temperature (°C)	5.3	6.4	6.4	11.6	12.6	14.6	11.8	13.2	12.1	10.2	6.1	3.9

The largest precipitation sum in Río Grande is at

July — 104(mm)

August — 104(mm)

September — 52(mm)

October — 74(mm)

When is the best time to visit Río Grande?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Río Grande.

What is the weather like in Río Grande?

See average temperature, rainfall and daylight hours for Río Grande by month in the table above.

How many sunny days does Río Grande have?

The monthly weather statistics above show sunshine and rainfall patterns for Río Grande throughout the year.