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April Weather in San Leandro, United States

Last updated: June 24, 2025

In April, the average temperature in San Leandro, United States hovers around 14°C (58°F). During this time, you can expect a minimum of 4°C (40°F) and a pleasant maximum of 31°C (88°F). With 29 mm (1.2 in) of precipitation spread over 5 days, staying prepared for rain would be wise. Additionally, the average humidity sits at a comfortable 78%, adding to the region's unique climate experience.

April Temperature in San Leandro

In April in San Leandro, the average temperature is 14°C (58°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 4°C (40°F). It's advisable to pack for a range of weather conditions when traveling during this time.

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

The chart illustrates April temperature patterns in San Leandro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Leandro, April typically has an average temperature of 14°C (58°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec515254576064646566625550
Data source: Temperature data for San Leandro 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 Leandro

In San Leandro in April, the precipitation amount is 29 mm (1.2 in) over a period of 5 days.

April Precipitation Trends in San Leandro

The chart displays monthly precipitation patterns in San Leandro, 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 Leandro, April typically receives around 29 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec94917430182001244281
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Leandro

In San Leandro in April, humidity is 78%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making traveling a bit uncomfortable as the air clings to your skin, causing you to sweat more than usual while exploring.

April Average Humidity in San Leandro

This chart illustrates the average monthly humidity levels in San Leandro, 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 Leandro is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Leandro

In San Leandro in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Leandro.

Maximum UV Index Levels in San Leandro for April

The chart shows the monthly maximum UV Index (UVI) for San Leandro 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 Leandro typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109743
Data source: San Leandro 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 Leandro Compares to Other Months

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

This table compares monthly weather conditions in San Leandro, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)94 mm (3.7 inches)82%moderate
February Weather11°C (53°F)91 mm (3.6 inches)84%moderate
March Weather12°C (54°F)73 mm (2.9 inches)82%very high
April Weather14°C (58°F)29 mm (1.2 inches)78%very high
May Weather15°C (60°F)18 mm (0.7 inches)71%very high
June Weather18°C (64°F)2 mm (0.1 inches)64%extreme
July Weather18°C (64°F)0 mm (0.0 inches)58%extreme
August Weather18°C (65°F)0 mm (0.0 inches)54%very high
September Weather19°C (66°F)1 mm (0.0 inches)55%very high
October Weather17°C (63°F)24 mm (1.0 inches)62%high
November Weather13°C (56°F)42 mm (1.7 inches)78%moderate
December Weather10°C (51°F)80 mm (3.2 inches)80%moderate

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