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Contents
- The climate of Oakland
- The best time to visit Oakland
- The worst time to visit Oakland
- Spring weather in Oakland
- Summer weather in Oakland
- Autumn weather in Oakland
- Winter weather in Oakland
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Oakland
Oakland, California, is nestled on the west coast of the United States, and its climate is predominantly classified under the Köppen climate classification as Csb - Mediterranean, warm summer. Throughout the year, the city experiences temperate weather conditions; neither too hot nor too cold, an ideal balance for residents and travelers alike. The temperature in Oakland sees a gradual increase starting from January with a high of 56.3°F (13.5°C) and a low of 45.7°F (7.6°C) reaching to its zenith in September with 73.9°F (23.3°C) as the highest and 56.5°F (13.6°C) as the minimum.
Rainfall in Oakland is relatively moderate throughout the year. The rainy season lasts from November to March, with an average rainfall of 0.51" (13mm) in December, the wettest month. Months from April to September are relatively dry with minor occasional showers or even zero precipitation as seen in July. The highest relative humidity is observed in March at 75%, which then fluctuates throughout the year but mostly stays above 70%.
Oakland also sees fair amounts of sunshine throughout the year, with May to October offering more than 10 hours of sunshine per day. The UV index varies from 3 to 5, indicating moderate exposure levels. The trade winds a constant through the year, with speed ranging from 5.5mph (8.9km/h) to 7.6mph (12.2km/h). It is also noteworthy that the city experiences less cloud coverage during summer compared to the winter months.
Rainfall in Oakland is relatively moderate throughout the year. The rainy season lasts from November to March, with an average rainfall of 0.51" (13mm) in December, the wettest month. Months from April to September are relatively dry with minor occasional showers or even zero precipitation as seen in July. The highest relative humidity is observed in March at 75%, which then fluctuates throughout the year but mostly stays above 70%.
Oakland also sees fair amounts of sunshine throughout the year, with May to October offering more than 10 hours of sunshine per day. The UV index varies from 3 to 5, indicating moderate exposure levels. The trade winds a constant through the year, with speed ranging from 5.5mph (8.9km/h) to 7.6mph (12.2km/h). It is also noteworthy that the city experiences less cloud coverage during summer compared to the winter months.
The best time to visit Oakland
Given the warm Mediterranean climate, the best time to visit Oakland is from May through September. During these months, the city receives over 10 hours of sunshine a day, allowing visitors to explore local attractions and enjoy the breathtaking California shorelines. The temperature ranges from 65.8°F (18.8°C) to 73.9°F (23.3°C), perfect for outdoor activities. Additionally, rainfall is at its least during these months, sometimes even witnessing zero inch of rainfall, thus ensuring undisrupted plans for sightseeing and outdoor events.
The worst time to visit Oakland
The months of November through March may be deemed as the less pleasant time to visit Oakland. While the temperatures still fall in a comfortable range from 55.8°F (13.2°C) to 61.7°F (16.5°C), the city does receive the bulk of its annual precipitation during these months. December and February are especially wet, with an average rainfall measuring around 0.51" (13mm) and 0.67" (17mm) respectively. This damp weather coupled with shorter daylight hours - less than 10 hours a day, can potentially hamper outdoor sightseeing plans.
Spring weather in Oakland
Spring in Oakland experiences progressively lenient temperatures. Starting from a low 47.1°F (8.4°C) in March to a high of 63.1°F (17.3°C) in May, the temperature ranges offer a gradual shift from chill to warmth. An average of 12 hours of daylight in March extends to about 14.2 hours in May, providing ample sunshine. The rainfall sees a decline from the previous colder months, coming down to an average of 0.16" (4mm) in April.
Summer weather in Oakland
Summer is the season when Oakland truly thrives. The temperature hovers between a comfortable 53.6°F (12°C) to 73.9°F (23.3°C). An average daylight duration of 14.5 to 14.8 hours paints the city in a warm, golden hue making it the ideal season for outdoor activities. The summer months are the driest with negligible to zero inches of rainfall providing a clear sky throughout the day.
Autumn weather in Oakland
Autumn in Oakland sees a subtle retreat from the peak summer temperatures. With a high of 68.9°F (20.5°C) in October to a moderate 61.7°F (16.5°C) in November, the city experiences mild weather conditions. The daylight hours reduce but still stay above 10, sustaining the warm and sunny aura of summer. The autumn season does mark the onset of the rainy season, with November recording an average precipitation of 0.35" (9mm).
Winter weather in Oakland
Winter weather in Oakland is characterized by cooling temperatures and increased precipitation. Starting from a low of 45.9°F (7.7°C) in December to a high of 55.8°F (13.2°C) in February, winter is considerably milder compared to other regions. Despite the temperature drop, the city receives ample sunshine of almost 9.9 hours in December which is notably high for winter months. However, the rainy season in its full swing leads to higher humidity and an average rainfall of 0.51" (13mm) in December.
Weather in January
Oakland, California kicks off the year with a rather mild temperature range. The cool breeze whispers through the city with an average speed of 5.7mph (9.2km/h), occasionally gusting up to 9.2mph (14.8km/h). Humidity tends to be high, paving the way for an overall cozy winter climate. Weather in January »
Weather in February
Oakland’s winter charm carries on well into February. With the average daily sunshine hours rising to 6.2 hours, February is slightly brighter than January. Additionally, the sea temperatures float around the same figures as the previous month, offering consistent conditions for sea-related activities. Weather in February »
Weather in March
As Oakland transitions into spring, March reveals a slight increase in temperature. Relative humidity rises minimally, contributing to marginally more damp conditions. As the days lengthen, the residents witness an increment in daylight hours along with an increase in the number of days with sunshine. Weather in March »
Weather in April
April in Oakland marks the true onset of spring, characterized by longer daylight hours and increased temperatures. With a decrease in humidity, the spring air feels crisp and refreshing. Further elevating the tranquil ambiance is the mild sea temperature, fostering pleasant conditions for water enthusiasts. Weather in April »
Weather in May
May is a delightful time of the year in Oakland. With the progress of spring, the weather continues its warming trend, and the city experiences noticeably longer hours of daylight. The frequency of rainfall reduces drastically, complementing the boosted temperatures. Weather in May »
Weather in June
Welcoming the summer season, June in Oakland, California presents warmer days and an extended duration of sunshine. The month also exhibits a decrease in humidity, with a relative drop in the monthly average. Sea temperatures remain fairly unchanged from May. Weather in June »
Weather in July
July in Oakland continues the reign of summer. Despite a small increase in the average temperature, the weather generally maintains the warmth from June. Alongside, sea temperatures experience a slight rise, making water activities more inviting. Weather in July »
Weather in August
August further intensifies the summer in Oakland. The month witnesses an increase in average sea temperatures, offering splendid conditions for beach visits. Besides, with a high UV index, ensuring good sun protection becomes essential. Weather in August »
Weather in September
September marks the commencement of fall in Oakland, California, bringing a mild decrease in temperature. The duration of daylight lessens slightly, yet people continue to enjoy ample sunshine hours. Relative humidity and pressure remain relatively stable, contributing to a comfortable external environment. Weather in September »
Weather in October
As fall deepens in October, Oakland experiences lower temperatures when compared to September. The daylight hours shorten while the frequency of sunshine days remains fairly stable. Additionally, the sea temperatures exhibit a dip, signaling the calming of water-based activities. Weather in October »
Weather in November
The last month of the autumn, November, is refreshing month in Oakland, California, with an average temperature fluctuating between 61.7°F (16.5°C) and 50°F (10°C). With the onset of November, Oakland's climate undergoes a slight change as the average high-temperature moves from an agreeable 68.9°F (20.5°C) in October to a refreshing 61.7°F (16.5°C). Weather in November »
Weather in December
December wraps up the year in Oakland, California, with a shift toward cooler days. Relative humidity, sea temperatures, and daylight duration exhibit a drop in their monthly averages. The number of sunshine hours decreases, indicating the advancement of the winter season. Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Oakland?
In Oakland, during the entire year, the rain falls for 44 days and collects up to 3.03" (77mm) of precipitation.
What are the months with the lowest UV index in Oakland?
The months with the lowest UV index in Oakland are January, February, November and December, with an average maximum UV index of 3.
What is the rainiest month in Oakland?
February is the month with the most rainfall in Oakland, California. Rain falls for 4.7 days and accumulates 0.67" (17mm) of precipitation.
What is the most humid month in Oakland?
March is the most humid month in Oakland, with an average relative humidity of 75%.
When is Daylight Saving Time (DST) in Oakland?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Oakland, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When is the ocean coldest in Oakland?
April through June, with an average ocean temperature of 53.1°F (11.7°C), are months with the coldest seawater.
When is the highest UV index in Oakland?
April through September, with an average maximum UV index of 5, are months with the highest UV index in Oakland.
When are the longest days in Oakland?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What is the driest month in Oakland?
July is the only month when rain does not fall.
What month has the most sunshine in Oakland?
The month with the most sunshine in Oakland is July, with an average of 11.9h of sunshine.
When does it rain in Oakland?
Months with rainfall are January through June, August through December.
What part of the year is the hottest in Oakland?
In Oakland, September is the warmest month, with temperatures averaging a high of 73.9°F (23.3°C) and a low of 56.5°F (13.6°C).
When is the ocean warmest in Oakland?
With an average ocean temperature of 57.4°F (14.1°C), September is the month with the warmest seawater in Oakland.
What is the least humid month in Oakland?
The least humid month in Oakland, California, is October, with an average relative humidity of 67%.
What are the coldest months in Oakland?
The coldest period in Oakland is December, when temperatures fluctuate between an average high of 55.8°F (13.2°C) and a low of 45.9°F (7.7°C).
What is the month with the shortest days in Oakland?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
What is the month with the least sunshine in Oakland?
December has the least sunshine of the year, with an average of 5.9h of sunshine.
Average temperature
Oakland, CA
The warmest month (with the highest average high temperature) is September (73.9°F).
The month with the lowest average high temperature is December (55.8°F).
The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).
Average pressure
Oakland, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed
Oakland, CA
- Average wind speed in January:
5.7mph - Average wind speed in February:
6.6mph - Average wind speed in March:
7mph - Average wind speed in April:
7.3mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.1mph - Average wind speed in September:
5.7mph - Average wind speed in October:
5.5mph - Average wind speed in November:
5.5mph - Average wind speed in December:
6.2mph
The windiest month (with the highest average wind speed) is May (7.6mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).
Average humidity
Oakland, CA
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (67%).
Average rainfall
Oakland, CA
- Average rainfall in January:
0.47" - Average rainfall in February:
0.67" - Average rainfall in March:
0.47" - Average rainfall in April:
0.16" - Average rainfall in May:
0.2" - Average rainfall in June:
0.04"
The wettest month (with the highest rainfall) is February (0.67").
The driest month (with the least rainfall) is July (0").
Average rainfall days
Oakland, CA
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
4.7 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
5.1 days - Average rainfall days in May:
2.8 days - Average rainfall days in June:
0.8 days
- Average rainfall days in July:
1.2 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
1.8 days - Average rainfall days in October:
1.5 days - Average rainfall days in November:
3.9 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is March (8.5 days).
The months with the least rainy days are June and August (0.8 days).
Average sea temperature
Oakland, CA
The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).
Average daylight / Average sunshine
Oakland, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 5min - Average sunshine in April:
10h and 2min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days
Oakland, CA
- Average sunshine days in January:
23.5 days - Average sunshine days in February:
21.9 days - Average sunshine days in March:
20.8 days - Average sunshine days in April:
23.9 days - Average sunshine days in May:
26.7 days - Average sunshine days in June:
28.5 days
- Average sunshine days in July:
29.7 days - Average sunshine days in August:
29.6 days - Average sunshine days in September:
27.9 days - Average sunshine days in October:
28 days - Average sunshine days in November:
24.8 days - Average sunshine days in December:
23.2 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (20.8 days).
Average UV index
Oakland, CA
The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Oakland, CA
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility
Oakland, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Oakland, California, USA
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