Weather in La Unión in September

General weather information about La Unión

Average annual temperature is 21.2 °C

Absolute maximum temperature: 34.6 °C

Absolute minimum temperature: 9.5 °C

Number of sunny days: 86 days

Number of rainy days: 279 days

* Weather data for La Unión 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)	29.0	32.0	32.4	34.1	34.6	34.0	29.2	31.4	28.3	31.5	28.2	30.6
Average daytime temperature (°C)	23.7	24.3	27.9	29.7	29.6	31.1	26.7	26.8	26.8	25.6	22.2	21.1
Average temperature (°C)	18.6	18.3	21.4	22.9	23.8	24.9	22.1	22.2	22.2	21.4	18.8	17.5
Average night temperature (°C)	15.0	14.5	17.0	18.1	19.1	20.4	19.0	18.8	18.8	18.6	16.6	14.8
Absolute minimum temperature (°C)	9.5	10.4	12.9	15.1	14.1	18.6	17.8	17.3	17.6	15.5	12.5	10.7

The largest precipitation sum in La Unión is at

June — 137(mm)

July — 190(mm)

August — 206(mm)

October — 154(mm)

When is the best time to visit La Unión?

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

What is the weather like in La Unión?

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

How many sunny days does La Unión have?

The monthly weather statistics above show sunshine and rainfall patterns for La Unión throughout the year.