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April Weather in San Manuel, United States

Last updated: June 24, 2025

In April, the average temperature in San Manuel, United States is a pleasant 19°C (66°F), with daily highs reaching up to 35°C (94°F) and lows dipping to a cool 3°C (38°F). Expect a modest precipitation of 5 mm (0.2 in) over the course of 1 day, accompanied by an average humidity of 55%.

April Temperature in San Manuel

In April in San Manuel, the average temperature is 19°C (66°F). The maximum can reach 35°C (94°F) and the minimum can be as low as 3°C (38°F). It's essential to pack for a variety of weather conditions while traveling, as temperatures can vary significantly throughout the day.

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

The chart illustrates April temperature patterns in San Manuel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Manuel, April typically has an average temperature of 19°C (66°F), with highs reaching up to 35°C (94°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec485056667283828077675949
Data source: Temperature data for San Manuel 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 Manuel

In San Manuel in April, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

April Precipitation Trends in San Manuel

The chart displays monthly precipitation patterns in San Manuel, 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 Manuel, April typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec43553158141129243212443
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Manuel

In San Manuel in April humidity is 55%. With an average temperature of 19°C (66°F), this humidity feels like a gentle warmth wrapping around you, making it comfortable for traveling while allowing you to enjoy the sights without feeling overheated or sweaty.

April Average Humidity in San Manuel

This chart illustrates the average monthly humidity levels in San Manuel, 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 Manuel is approximately 55%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%79%67%55%40%33%34%48%64%67%77%82%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Manuel

In San Manuel in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Manuel.

Maximum UV Index Levels in San Manuel for April

The chart shows the monthly maximum UV Index (UVI) for San Manuel 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 Manuel typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5710111213121111865
Data source: San Manuel 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 Manuel Compares to Other Months

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

This table compares monthly weather conditions in San Manuel, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)43 mm (1.7 inches)76%moderate
February Weather10°C (50°F)55 mm (2.2 inches)79%high
March Weather13°C (56°F)31 mm (1.2 inches)67%very high
April Weather19°C (66°F)5 mm (0.2 inches)55%extreme
May Weather22°C (73°F)8 mm (0.3 inches)40%extreme
June Weather28°C (83°F)14 mm (0.6 inches)33%extreme
July Weather28°C (82°F)112 mm (4.4 inches)34%extreme
August Weather27°C (81°F)92 mm (3.6 inches)48%extreme
September Weather25°C (77°F)43 mm (1.7 inches)64%extreme
October Weather20°C (68°F)21 mm (0.8 inches)67%very high
November Weather15°C (59°F)24 mm (0.9 inches)77%high
December Weather9°C (49°F)43 mm (1.7 inches)82%moderate

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