Temperature in La Unión department in September

Daytime highs, nighttime lows and the warmest cities in La Unión department, El Salvador this September.

La Unión department, El Salvador, a region in El Salvador, typically experiences very warm weather in September, with maximum daytime temperatures around 31°C (88°F) and nighttime temperatures around 25°C (77°F) in La Unión.

What is the temperature of the different cities in La Unión department, El Salvador in September?

Find the average daytime temperatures in September for the most popular destinations in La Unión department on the map below. Click on a destination dot for more detailed information.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit La Unión department, check out our La Unión department's climate page.

See also: La Unión department weather by month.

Best Places to Visit in La Unión department in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across La Unión department.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in La Unión department

La Unión department temperatures in September: frequently asked questions

How hot does it get in La Unión department, El Salvador in September?

La Unión averages a daytime high of 31°C (88°F) in September, which is very high for La Unión department, El Salvador.

How cold does it get at night in La Unión department, El Salvador in September?

Nighttime temperatures in La Unión typically drop to around 25°C (77°F) in September.

Interested in more climate information?

We have much more information about the climate in La Unión department.

Weather and climate has detailed information for every country in the world. Are you going to El Salvador? Get detailed historical weather averages for many cities in El Salvador.

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