El Salvador weather

Our guide to the weather in El Salvador during May

31

Average high

6

UV Index

304mm

Monthly rainfall

30

Sea temperature

We've looked at the most up-to-date weather data for El Salvador, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about El Salvador weather in May.

How hot is it in El Salvador during May?

The temperature reaches around 31℃ during the daytime in May, falling away to 22℃ at night. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in El Salvador during May?

On average, there will be 12 rainy days during the month, amounting to 303.6mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, May will see just 4 days that produce a storm.

Is it windy in El Salvador during May?

No - there is very light air movement in May so conditions should be calm with light breezes at times.

How warm is the sea in El Salvador during May?

The water around El Salvador reaches a very pleasant 30℃ during May. This is very warm, and will feel bath-like. People who normally feel the cold will find this temperature perfectly acceptable. The hot air temperature and relatively high humidity will mean that you will feel comfortably warm when coming out of the water.

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Weather in El Salvador

Our month-by-month guide to the weather and climate in El Salvador

30.6

El Salvador weather in

January
31.9

El Salvador weather in

February
33.0

El Salvador weather in

March
32.7

El Salvador weather in

April
30.8

El Salvador weather in

May
29.2

El Salvador weather in

June
30.5

El Salvador weather in

July
30.1

El Salvador weather in

August
29.0

El Salvador weather in

September
28.7

El Salvador weather in

October
29.1

El Salvador weather in

November
30.0

El Salvador weather in

December