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April Weather in Oakland, United States

Last updated: June 24, 2025

In April, the average temperature in Oakland, United States hovers around 9°C (49°F). Expect a chilly minimum of -7°C (20°F) and the warmth of a maximum 27°C (80°F). With 133 mm (5.2 in) of precipitation spread across 17 days, be prepared for damp conditions. Notably, the average humidity levels are high at 88%, creating a cool yet humid atmosphere.

April Temperature in Oakland

In April in Oakland, the average temperature is 9°C (49°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -7°C (20°F). It's advisable to pack layers and prepare for significant temperature fluctuations when traveling to Oakland during this time.

April Weather in Oakland: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Oakland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oakland, April typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (80°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec283238485967727064543933
Data source: Temperature data for Oakland 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 Oakland

In Oakland in April, the precipitation amount is 133 mm (5.2 in) over the span of 17 days.

April Precipitation Trends in Oakland

The chart displays monthly precipitation patterns in Oakland, 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 Oakland, April typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec911311141331521451219812611591115
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Oakland

In Oakland in April, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

April Average Humidity in Oakland

This chart illustrates the average monthly humidity levels in Oakland, 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 Oakland is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Oakland

In Oakland 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 Oakland.

Maximum UV Index Levels in Oakland for April

The chart shows the monthly maximum UV Index (UVI) for Oakland 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 Oakland typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: Oakland 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 Oakland Compares to Other Months

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

This table compares monthly weather conditions in Oakland, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)91 mm (3.6 inches)89%moderate
February Weather0°C (33°F)131 mm (5.1 inches)90%moderate
March Weather4°C (39°F)114 mm (4.5 inches)89%high
April Weather9°C (49°F)133 mm (5.2 inches)88%very high
May Weather15°C (60°F)152 mm (6.0 inches)80%very high
June Weather19°C (67°F)145 mm (5.7 inches)79%very high
July Weather22°C (72°F)121 mm (4.8 inches)74%very high
August Weather21°C (70°F)98 mm (3.9 inches)64%very high
September Weather18°C (65°F)126 mm (5.0 inches)67%very high
October Weather12°C (55°F)115 mm (4.5 inches)81%high
November Weather4°C (40°F)91 mm (3.6 inches)89%moderate
December Weather1°C (34°F)115 mm (4.5 inches)88%low

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