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April Weather in San Fernando, Mexico

Last updated: August 27, 2025

In April, the average temperature in San Fernando, Mexico is a pleasant 25°C (78°F). However, temperatures can vary significantly, dipping to a cool 10°C (50°F) and soaring to a scorching 41°C (107°F). Be prepared for some rain, as the region experiences about 30 mm (1.2 in) of precipitation over 6 days. Humidity levels are notably high, averaging 81%, making it essential to stay hydrated and comfortable during your visit!

April Temperature in San Fernando

In April in San Fernando, the average temperature is 25°C (78°F). Maximums can reach 41°C (107°F), and minimums can drop as low as 10°C (50°F). Be prepared for a wide range of temperatures to make the most of your travel experience.

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

The chart illustrates April temperature patterns in San Fernando, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Fernando, April typically has an average temperature of 25°C (78°F), with highs reaching up to 41°C (107°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec636672778285858782776965
Data source: Temperature data for San Fernando 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 Fernando

In San Fernando in April, the total precipitation amount is 30 mm (1.2 in) spread across 6 days.

April Precipitation Trends in San Fernando

The chart displays monthly precipitation patterns in San Fernando, 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 Fernando, April typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec2416363058738625109873313
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Fernando

In San Fernando in April humidity is 81%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities less comfortable and requiring frequent breaks to stay hydrated.

April Average Humidity in San Fernando

This chart illustrates the average monthly humidity levels in San Fernando, 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 Fernando 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 Fernando

In San Fernando 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 Fernando.

Maximum UV Index Levels in San Fernando for April

The chart shows the monthly maximum UV Index (UVI) for San Fernando 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 Fernando typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111212121212111086
Data source: San Fernando 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 Fernando Compares to Other Months

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

This table compares monthly weather conditions in San Fernando, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)24 mm (0.9 inches)84%high
February Weather19°C (67°F)16 mm (0.6 inches)83%very high
March Weather22°C (73°F)36 mm (1.4 inches)78%extreme
April Weather25°C (78°F)30 mm (1.2 inches)81%extreme
May Weather28°C (83°F)58 mm (2.3 inches)82%extreme
June Weather29°C (85°F)72 mm (2.9 inches)74%extreme
July Weather30°C (86°F)86 mm (3.4 inches)68%extreme
August Weather30°C (87°F)25 mm (1.0 inches)67%extreme
September Weather28°C (83°F)109 mm (4.3 inches)75%extreme
October Weather25°C (77°F)87 mm (3.4 inches)78%very high
November Weather21°C (70°F)33 mm (1.3 inches)83%very high
December Weather18°C (66°F)13 mm (0.5 inches)86%high

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