San Salvador Weather in May
What's the weather like in San Salvador (San Salvador) in May 2025?
The climate in San Salvador during May can be summarized as hot, humid and wet.
May is in the spring in San Salvador and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (86°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 30.1°C 86.1°F |
|---|---|
| Nightly temperature | 17.4°C 63.2°F |
| Average temperature | 23.7°C 74.7°F |
| Daily sunshine | 8.2 hrs |
| Avg rainfall | 160 mm 6.3 ins |
| Rainy days | 19 days |
| Sea temperature | 29.8°C 85.6°F |
| Humidity | 76% |
| Windspeed | 8.6kph 5 mph |
On average May is the 6th wettest month of the year in San Salvador with around 160mm 6.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
May temperatures in San Salvador
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Salvador in May 2025.
Other monthly averages
San Salvador weather stats
| Hottest month: | April | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | February | 4mm 0.2ins |
| Sunniest month: | February | 9.4hrs |
| Coldest month: | December | 28.5°C 83.3°F |
| Wettest month: | September | 336mm 13.2ins |
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