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April Weather in San Martin, El Salvador

Last updated: August 23, 2025

In San Martin, El Salvador, the average temperature in April reaches a warm 28°C (82°F), with minimums dipping to 19°C (67°F) and maximums soaring up to 38°C (101°F). Expect 51 mm (2.0 in) of precipitation spread over 15 days, contributing to an average humidity level of 59%.

April Temperature in San Martin

In April in San Martin, the average temperature is 28°C (82°F). The maximum can reach 38°C (101°F), while the minimum can drop as low as 19°C (67°F). Travelers should prepare for a warm climate with the potential for hot spells, making it ideal for enjoying outdoor activities and exploring the local attractions.

April Weather in San Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in San Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martin, April typically has an average temperature of 28°C (82°F), with highs reaching up to 38°C (101°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec788081828079818079787878
Data source: Temperature data for San Martin 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.

April Precipitation in San Martin

In San Martin in April, the total precipitation amount is 51 mm (2.0 in) spread over 15 days.

April Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San Martin, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In San Martin, April typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec35551280313138232291286657
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Martin

In San Martin in April humidity is 59%. With an average temperature of 28°C (82°F), this humidity feels like a warm embrace, making travel somewhat sticky yet invigorating, as the moist air clings to your skin and enhances the experience of vibrant surroundings.

April Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San Martin, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in San Martin is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%62%59%59%59%68%78%79%77%77%75%67%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Martin

In San Martin in April, 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 San Martin, you can check here.

Maximum UV Index Levels in San Martin for April

The chart shows the monthly maximum UV Index (UVI) for San Martin in April, 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 April, the maximum UV index in San Martin typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131313109
Data source: San Martin April 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 April Weather in San Martin Compares to Other Months

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

This table compares monthly weather conditions in San Martin, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)3 mm (0.1 inches)63%extreme
February Weather26°C (80°F)5 mm (0.2 inches)62%extreme
March Weather27°C (82°F)5 mm (0.2 inches)59%extreme
April Weather28°C (82°F)51 mm (2.0 inches)59%extreme
May Weather27°C (81°F)279 mm (11.0 inches)59%extreme
June Weather26°C (79°F)313 mm (12.3 inches)68%extreme
July Weather27°C (81°F)138 mm (5.4 inches)77%extreme
August Weather27°C (80°F)232 mm (9.1 inches)79%extreme
September Weather26°C (79°F)291 mm (11.5 inches)77%extreme
October Weather25°C (78°F)286 mm (11.3 inches)77%extreme
November Weather26°C (78°F)65 mm (2.5 inches)75%very high
December Weather25°C (78°F)7 mm (0.3 inches)66%very high

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