April Weather in Oakland, United States

Last updated: June 24, 2025

In Oakland, United States, the average temperature in April is a pleasant 18°C (65°F). However, be prepared for a range of temperatures, as the minimum can dip to -1°C (30°F), while the maximum might soar to 32°C (90°F). Expect an average precipitation of 108 mm (4.3 in) over 8 days, contributing to an overall humidity level of 79%.

April Temperature in Oakland

In April in Oakland, the average temperature is 18°C (65°F). Maximums can reach 32°C (90°F), while minimums can dip as low as -1°C (30°F). It's a great time for travelers to experience mild weather, but be prepared for a range of temperatures to fully enjoy your visit.

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 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (30°F).

Data source: Temperature data for Oakland generated using information from the Copernicus Climate Change Service.

April Precipitation in Oakland

In Oakland in April, the precipitation amount is 108 mm (4.3 in) spread over 8 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 108 mm (4.3 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Oakland

In Oakland in April, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

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 79%, offering insight into how humid the weather typically is during this month.

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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 10, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	81 mm (3.2 inches)	86%	moderate
February Weather	12°C (54°F)	97 mm (3.8 inches)	81%	high
March Weather	14°C (58°F)	72 mm (2.8 inches)	81%	very high
April Weather	18°C (65°F)	108 mm (4.3 inches)	79%	very high
May Weather	23°C (74°F)	97 mm (3.8 inches)	75%	extreme
June Weather	26°C (79°F)	120 mm (4.7 inches)	75%	extreme
July Weather	28°C (82°F)	140 mm (5.5 inches)	80%	extreme
August Weather	27°C (81°F)	126 mm (5.0 inches)	81%	very high
September Weather	25°C (77°F)	121 mm (4.8 inches)	83%	very high
October Weather	20°C (69°F)	62 mm (2.5 inches)	78%	very high
November Weather	13°C (55°F)	66 mm (2.6 inches)	85%	high
December Weather	10°C (51°F)	140 mm (5.5 inches)	87%	moderate