Oakland, CA Climate & Monthly Averages
The climate of Oakland
Located in California, United States, Oakland experiences a oceanic climate with mild temperatures year-round with regular rainfall. Afternoon temperatures peak near 77°F (25°C) in September and dip to about 58°F (14°C) in December, with around 24.5 inches (622 mm) of precipitation falling across the year.
Climate quick facts
- Hottest month: September - highs near 77°F (25°C)
- Coldest month: December - highs near 58°F (14°C)
- Record high: 110°F (43°C) · Record low: 32°F (0°C) (2015–2024)
- Wettest month: January (11 rainy days) · Sunniest: June (13.3 h sun/day)
- Climate type: oceanic - mild temperatures year-round with regular rainfall
Temperatures through the year
The warmest stretch of the year centers on September. Highs average 77°F (25°C) and overnight lows stay near 57°F (14°C). The coolest month is December, with typical highs of 58°F (14°C) and lows around 44°F (7°C). Based on 2015–2024 weather data, temperatures have reached as high as 110°F (43°C) and dropped as low as 32°F (0°C).
Rain, sun and snow
January is usually the wettest month. It brings about 5.2 inches (133 mm) of rain over 11 days, while August is the driest. June brings the most sunshine, averaging 13.3 hours of sun a day. Snowfall is rare but not unheard of.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 45° | 11 | 5.2 in | 6.9 h/day | 81% |
| February | 61° | 45° | 8 | 4.0 in | 8.8 h/day | 74% |
| March | 62° | 46° | 10 | 4.3 in | 9.3 h/day | 77% |
| April | 65° | 49° | 5 | 1.4 in | 11.3 h/day | 76% |
| May | 68° | 51° | 3 | 0.9 in | 12.7 h/day | 76% |
| June | 73° | 55° | 0 | 0.1 in | 13.3 h/day | 73% |
| July | 74° | 56° | 0 | 0.0 in | 13.2 h/day | 77% |
| August | 75° | 57° | 0 | 0.0 in | 12.4 h/day | 78% |
| September | 77° | 57° | 1 | 0.2 in | 11.4 h/day | 73% |
| October | 74° | 55° | 3 | 1.2 in | 9.8 h/day | 67% |
| November | 64° | 47° | 6 | 2.3 in | 8.4 h/day | 72% |
| December | 58° | 44° | 11 | 4.9 in | 6.8 h/day | 79% |
Oakland month by month
Oakland weather in January
January brings highs around 58°F (15°C), lows near 45°F (7°C), about 11 wet days - typically the wettest month of the year in Oakland.
Oakland weather in February
February brings highs around 61°F (16°C), lows near 45°F (7°C), about 8 wet days.
Oakland weather in March
March brings highs around 62°F (16°C), lows near 46°F (8°C), about 10 wet days.
Oakland weather in April
April brings highs around 65°F (18°C), lows near 49°F (9°C), about 5 wet days.
Oakland weather in May
May brings highs around 68°F (20°C), lows near 51°F (11°C), about 3 wet days.
Oakland weather in June
June brings highs around 73°F (23°C), lows near 55°F (13°C), about 0 wet days - typically the sunniest month of the year in Oakland.
Oakland weather in July
July brings highs around 74°F (23°C), lows near 56°F (13°C), about 0 wet days.
Oakland weather in August
August brings highs around 75°F (24°C), lows near 57°F (14°C), about 0 wet days - typically the driest month of the year in Oakland.
Oakland weather in September
September brings highs around 77°F (25°C), lows near 57°F (14°C), about 1 wet days - typically the hottest month of the year in Oakland.
Oakland weather in October
October brings highs around 74°F (24°C), lows near 55°F (13°C), about 3 wet days.
Oakland weather in November
November brings highs around 64°F (18°C), lows near 47°F (9°C), about 6 wet days.
Oakland weather in December
December brings highs around 58°F (14°C), lows near 44°F (7°C), about 11 wet days - typically the coldest month of the year in Oakland.
Seasons in Oakland
Spring (March through May)
Spring in Oakland is mild, with daytime highs averaging 65°F (18°C) and nights around 49°F (9°C); rain falls on about 18 days over the three months.
Summer (June through August)
Summer in Oakland brings comfortable warmth, with daytime highs averaging 74°F (23°C) and nights around 56°F (13°C); precipitation is infrequent.
Fall (September through November)
Fall in Oakland is mild and warm, with daytime highs averaging 72°F (22°C) and nights around 53°F (12°C); rain falls on about 11 days over the three months.
Winter (December through February)
Winter in Oakland is mild, with daytime highs averaging 59°F (15°C) and nights around 44°F (7°C); expect showers on roughly 30 days across the season.
Climate questions, answered
What is the average temperature in Oakland?
Is Oakland hot in summer?
Is Oakland cold in winter?
How many rainy days does Oakland get in a year?
Best time to visit Oakland
The best time to visit Oakland is generally April to August and February, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window typically sit near 69°F (21°C).
Pack for Oakland with rain gear if you travel around January. Evenings can feel noticeably cooler than afternoons - September nights average 57°F (14°C).
Oakland temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.