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April Weather in San Martin, Mexico

Last updated: August 26, 2025

In April, the average temperature in San Martin, Mexico is a pleasant 18°C (65°F). Expect temperatures to range from a cool 5°C (42°F) at night to a warm 31°C (89°F) during the day. Be prepared for 35 mm (1.4 in) of precipitation over 9 days, and note that the average humidity is a comfortable 80%.

April Temperature in San Martin

In April, in San Martin, the average temperature is 18°C (65°F). Maximum temperatures can reach up to 31°C (89°F), while the minimum can drop as low as 5°C (42°F). This variety in temperatures makes San Martin an ideal destination for travelers looking to enjoy both warm days and cooler evenings.

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 18°C (65°F), with highs reaching up to 31°C (89°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec545861656664636363605655
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 reaches 35 mm (1.4 in) over the course of 9 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 35 mm (1.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec121122355313511412314597255
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 80%. With an average temperature of 18°C (65°F), this humidity feels like wandering through a warm, damp blanket, making every step slightly heavy and resulting in a constant sheen of sweat, which can be both refreshing and exhausting for travelers.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
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.
JanFebMarAprMayJunJulAugSepOctNovDec9111414151414141412108
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 Weather12°C (54°F)12 mm (0.5 inches)88%very high
February Weather14°C (58°F)11 mm (0.4 inches)86%extreme
March Weather16°C (61°F)22 mm (0.9 inches)83%extreme
April Weather18°C (65°F)35 mm (1.4 inches)80%extreme
May Weather19°C (67°F)53 mm (2.1 inches)82%extreme
June Weather18°C (65°F)135 mm (5.3 inches)79%extreme
July Weather17°C (63°F)114 mm (4.5 inches)72%extreme
August Weather17°C (63°F)123 mm (4.8 inches)74%extreme
September Weather17°C (63°F)145 mm (5.7 inches)84%extreme
October Weather16°C (61°F)97 mm (3.8 inches)92%extreme
November Weather14°C (57°F)25 mm (1.0 inches)91%very high
December Weather13°C (55°F)5 mm (0.2 inches)91%very high

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