nomadseason

May Weather in Oakland, United States

Last updated: June 24, 2025

In Oakland, United States, the average temperature in May hovers around 15°C (60°F). During this time, temperatures can dip to a chilly -4°C (26°F) or rise to a balmy 29°C (85°F). Be prepared for some rain, as the region typically receives 152 mm (6.0 in) of precipitation over 18 days. Enjoy the lush atmosphere with an average humidity level of 80%!

May Temperature in Oakland

In May in Oakland, the average temperature is 15°C (60°F). Maximums can reach 29°C (85°F) and minimums can be as low as -4°C (26°F). Travelers should be prepared for varying weather conditions, packing accordingly for both warm days and chilly nights.

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

The chart illustrates May 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, May typically has an average temperature of 15°C (60°F), with highs reaching up to 29°C (85°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec283238485967727064543933
Data source: Temperature data for Oakland generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Oakland

In Oakland in May, the precipitation amount is 152 mm (6.0 in) distributed over 18 days.

May Precipitation Trends in Oakland

The chart displays monthly precipitation patterns in Oakland, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Oakland, May typically receives around 152 mm (6.0 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec911311141331521451219812611591115
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Oakland

In Oakland in May humidity is 80%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace that can make even the simplest stroll feel like a workout, leaving travelers yearning for a refreshing breeze or shade to escape the weight of the air.

May Average Humidity in Oakland

This chart illustrates the average monthly humidity levels in Oakland, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Oakland is approximately 80%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Oakland

In Oakland in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Oakland in May, 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 May, the maximum UV index in Oakland typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: Oakland May 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 May 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 May’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 May’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

Compare Oakland's Climate with Cities Worldwide