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April Weather in San Isidro, Mexico

Last updated: August 27, 2025

In April, the average temperature in San Isidro, Mexico typically reaches a comfortable 25°C (77°F). However, be prepared for extremes: temperatures can dip to a chilly 8°C (47°F) or soar to a scorching 43°C (109°F). During this month, expect about 47 mm (1.9 in) of precipitation over 6 days, accompanied by an average humidity level of 81%.

April Temperature in San Isidro

In April in San Isidro, the average temperature is 25°C (77°F), with maximums reaching 43°C (109°F) and minimums dropping as low as 8°C (47°F). Be prepared for a wide range of temperatures during your travels!

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

The chart illustrates April temperature patterns in San Isidro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Isidro, April typically has an average temperature of 25°C (77°F), with highs reaching up to 43°C (109°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec606472778385868882756763
Data source: Temperature data for San Isidro 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 Isidro

In San Isidro in April, the precipitation amount is 47 mm (1.9 in) over the course of 6 days.

April Precipitation Trends in San Isidro

The chart displays monthly precipitation patterns in San Isidro, 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 Isidro, April typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec24132647761079317125502418
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Isidro

In San Isidro in April, humidity is 81%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, thick blanket, making traveling quite challenging as you may feel sticky and sluggish, requiring frequent breaks to stay refreshed and hydrated.

April Average Humidity in San Isidro

This chart illustrates the average monthly humidity levels in San Isidro, 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 Isidro is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%78%81%82%74%68%67%75%78%83%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Isidro

In San Isidro in April, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Isidro.

Maximum UV Index Levels in San Isidro for April

The chart shows the monthly maximum UV Index (UVI) for San Isidro 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 Isidro typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec68101212121212111076
Data source: San Isidro 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 Isidro Compares to Other Months

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

This table compares monthly weather conditions in San Isidro, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (60°F)24 mm (0.9 inches)84%high
February Weather18°C (65°F)13 mm (0.5 inches)83%very high
March Weather22°C (72°F)26 mm (1.0 inches)78%very high
April Weather25°C (77°F)47 mm (1.9 inches)81%extreme
May Weather28°C (83°F)76 mm (3.0 inches)82%extreme
June Weather30°C (85°F)106 mm (4.2 inches)74%extreme
July Weather30°C (87°F)93 mm (3.7 inches)68%extreme
August Weather31°C (88°F)17 mm (0.7 inches)67%extreme
September Weather28°C (82°F)125 mm (4.9 inches)75%extreme
October Weather24°C (76°F)50 mm (2.0 inches)78%very high
November Weather20°C (67°F)24 mm (0.9 inches)83%high
December Weather17°C (63°F)18 mm (0.7 inches)86%high

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