La Unión Weather in September
La Unión in September sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 25°C (77°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.
Rainfall in La Unión in September
La Unión is in the rainy season in September, with rain on around 27 days and an average of 353 mm (14 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in La Unión in September
In September, La Unión gets very high temperatures, with highs of 31°C (88°F). Nights cool to around 25°C (77°F). It's usually most comfortable outside during the morning and later in the day. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.September in La Unión has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our La Unión's climate page.
La Unión Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
90%
Precipitation
353 mm (14 in)
Rainy days
27 days
Humidity
80% *
Best Places in El Salvador in September
Find out more about the weather in El Salvador and which places have the best travel conditions in this month. See all of El Salvador in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in La Unión in September
Warm but pleasant conditions in La Unión in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.What To Do in La Unión in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our La Unión's climate page.
See the full La Unión climate overview or explore weather in El Salvador.
