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May Weather in El Salvador, Mexico

Last updated: August 27, 2025

In May, the average temperature in El Salvador, Mexico hovers around 21°C (70°F), offering a delightful climate for outdoor activities. However, temperatures can fluctuate, with a minimum of 9°C (49°F) and a maximum of 34°C (93°F). Expect about 52 mm (2.0 in) of precipitation spread over 8 days, accompanied by an average humidity of 66%. Enjoy the varied weather while exploring this enchanting locale!

May Temperature in El Salvador

In May in El Salvador, the average temperature is 21°C (70°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 9°C (49°F). This mild climate makes El Salvador an ideal destination for travelers looking to enjoy a pleasant outdoor experience.

May Weather in El Salvador: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in El Salvador, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Salvador, May typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec535863677070696967655954
Data source: Temperature data for El Salvador generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in El Salvador

In El Salvador in May, the total precipitation amount is 52 mm (2.0 in) recorded over a span of 8 days.

May Precipitation Trends in El Salvador

The chart displays monthly precipitation patterns in El Salvador, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In El Salvador, May typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec151223325240682059221127
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in El Salvador

In El Salvador in May humidity is 66%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for leisurely strolls but slightly sticky for longer excursions.

May Average Humidity in El Salvador

This chart illustrates the average monthly humidity levels in El Salvador, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in El Salvador is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%70%65%59%66%71%57%58%73%76%81%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in El Salvador

In El Salvador in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in El Salvador, you can check here.

Maximum UV Index Levels in El Salvador for May

The chart shows the monthly maximum UV Index (UVI) for El Salvador in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in El Salvador typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414141414131297
Data source: El Salvador May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in El Salvador Compares to Other Months

Weather in El Salvador varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in El Salvador, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in El Salvador, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)15 mm (0.6 inches)75%very high
February Weather14°C (58°F)12 mm (0.5 inches)70%very high
March Weather17°C (63°F)23 mm (0.9 inches)65%extreme
April Weather19°C (67°F)32 mm (1.3 inches)59%extreme
May Weather21°C (70°F)52 mm (2.0 inches)66%extreme
June Weather21°C (71°F)40 mm (1.6 inches)71%extreme
July Weather21°C (69°F)68 mm (2.7 inches)57%extreme
August Weather21°C (69°F)19 mm (0.8 inches)58%extreme
September Weather19°C (67°F)59 mm (2.3 inches)72%extreme
October Weather18°C (65°F)22 mm (0.9 inches)76%extreme
November Weather15°C (59°F)11 mm (0.4 inches)81%very high
December Weather12°C (54°F)27 mm (1.1 inches)80%high

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