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La Unión Weather in May
La Unión in May averages 33°C (91°F) during the day and 26°C (79°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in La Unión in May
Rain is expected on roughly 16 days, totalling around 250 mm (9.8 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in La Unión in May
Temperatures in La Unión in May top out at 33°C (91°F) and drop to 26°C (79°F) overnight. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. With overnight lows of 26°C (79°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.May 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.
La Unión Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
33°C (91°F)
Chance of Rain
53%
Precipitation
250 mm (9.8 in)
Rainy days
16 days
Humidity
71% *
* Data from: San Miguel, El Salvador (39 KM, 24 Miles).
La Unión Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in La Unión - and find the best time to visit.
Best Places in El Salvador in May
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 May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in La Unión in May
Warm but pleasant conditions in La Unión in May. 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 May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
La Unión 3-Day Forecast
More climate data for La Unión
See the full La Unión climate overview or explore weather in El Salvador.
Popular in May
Where to go in May - average daytime high across popular destinations.
San Miguel
34°C (93°F) San Salvador32°C (90°F) El Cuco32°C (90°F) Santa Ana32°C (90°F) El Zonte30°C (86°F) Concepción de Ataco30°C (86°F) La Libertad30°C (86°F) El Sunzal30°C (86°F) Bucket list
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