Monthly weather forecast and climate
Alameda, CA

Weather in January

January, like December, is a moderate winter month in Alameda, California, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 56.7°F (13.7°C). In January, the average high-temperature is practically the same as in December - a still mild 56.7°F (13.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a moderate month in Alameda, California, with average temperature ranging between min 45.1°F (7.3°C) and max 58.6°F (14.8°C). In February, the average high-temperature is relatively the same as in January - a still mild 58.6°F (14.8°C). Weather in February »

Weather in March

The first month of the spring, March, is still a mild month in Alameda, California, with average temperature ranging between max 60.6°F (15.9°C) and min 46°F (7.8°C). In March, the average high-temperature is practically the same as in February - a still mild 60.6°F (15.9°C). Weather in March »

Weather in April

April in Alameda, California, is an enjoyable spring month, with average temperature varying between 64.6°F (18.1°C) and 47.3°F (8.5°C). In Alameda, the average high-temperature is relatively the same as in March - an enjoyable 64.6°F (18.1°C). Weather in April »

Weather in May

The last month of the spring, May, is another comfortable month in Alameda, California, with average temperature fluctuating between 50.2°F (10.1°C) and 67.6°F (19.8°C). In May, the average high-temperature is essentially the same as in April - a still comfortable 67.6°F (19.8°C). Weather in May »

Weather in June

June, the first month of the summer, in Alameda, is an agreeable month, with average temperature fluctuating between 53.4°F (11.9°C) and 73°F (22.8°C). In Alameda, the average high-temperature in June slightly increases, from a comfortable 67.6°F (19.8°C) in May, to a pleasant 73°F (22.8°C). Weather in June »

Weather in July

July in Alameda, California, is a moderately hot summer month, with average temperature fluctuating between 75.4°F (24.1°C) and 54.7°F (12.6°C). In July, the average high-temperature is almost the same as in June - a warm 75.4°F (24.1°C). Weather in July »

Weather in August

August, the last month of the summer, in Alameda, is another warm month, with average temperature ranging between max 75.6°F (24.2°C) and min 56.1°F (13.4°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 75.6°F (24.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Alameda, California, with average temperature ranging between min 56.5°F (13.6°C) and max 75.9°F (24.4°C). With an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 56.5°F (13.6°C), September is the warmest month. Weather in September »

Weather in October

October, the same as September, in Alameda, California, is another pleasant autumn month, with average temperature fluctuating between 54.5°F (12.5°C) and 70.2°F (21.2°C). In October, the average high-temperature marginally drops, from a moderately hot 75.9°F (24.4°C) in September, to a pleasant 70.2°F (21.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Alameda, California, with average temperature ranging between min 49.3°F (9.6°C) and max 62.2°F (16.8°C). In Alameda, the average high-temperature in November marginally drops, from an agreeable 70.2°F (21.2°C) in October, to an enjoyable 62.2°F (16.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a moderate month in Alameda, California, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 45.1°F (7.3°C). The coldest month is December, with an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 45.1°F (7.3°C). Weather in December »
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FAQ

How many days does it rain in Alameda?

Throughout the year, in Alameda, California, there are 67.2 rainfall days, and 6.1" (155mm) of precipitation is accumulated.

What are the months with the lowest UV index in Alameda?

January, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Alameda.

What is the rainiest month in Alameda?

The month with the most rainfall in Alameda, California, is February when the rain falls for 7.3 days and typically aggregates up to 1.18" (30mm) of precipitation.

What is the most humid month in Alameda?

The most humid month is March, with an average relative humidity of 75%.

What months are the ocean coldest in Alameda?

Through and June, with an average ocean temperature of 53.1°F (11.7°C).

When is the highest UV index in Alameda?

April through September, with an average maximum UV index of 5, are months with the highest UV index in Alameda.

When are the longest days in Alameda?

With an average of 14.7h of daylight, June has the longest days of the year in Alameda.

What is the driest month in Alameda?

The month with the least rainfall in Alameda, California, is July when the rain falls for 1.8 days and typically collects 0.04" (1mm) of precipitation.

What month has the most sunshine in Alameda?

With an average of 12h of sunshine, July has the most sunshine of the year in Alameda, California.

What is the warmest month in Alameda?

With an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 56.5°F (13.6°C), September is the warmest month in Alameda, California.

What is the month with the warmest ocean in Alameda?

The month with the warmest seawater is September, with an average ocean temperature of 57.4°F (14.1°C).

What is the least humid month in Alameda?

With an average relative humidity of 65%, October is the least humid month in Alameda, California.

What is the coldest month in Alameda?

December is the coldest month in Alameda, with an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 45.1°F (7.3°C).

What is the month with the shortest days in Alameda?

December has the shortest days of the year in Alameda, with an average of 9.6h of daylight.

What is the month with the least sunshine in Alameda?

December has the least sunshine of the year, with an average of 5.9h of sunshine.

Average temperature
Alameda, CA

Average temperature - Alameda, CA

The warmest month (with the highest average high temperature) is September (75.9°F).
The month with the lowest average high temperature is December (55.9°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°F).

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Average pressure
Alameda, CA

Average pressure - Alameda, CA

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed
Alameda, CA

Average wind speed - Alameda, CA

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are October and November (5.2mph).

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Average rainfall
Alameda, CA

Average rainfall - Alameda, CA

The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is July (0.04").

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Average rainfall days
Alameda, CA

Average rainfall days - Alameda, CA

The month with the highest number of rainy days is March (11.4 days).
The month with the least rainy days is August (1.3 days).

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Average sea temperature
Alameda, CA

Average sea temperature - Alameda, 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).

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Average daylight / Average sunshine
Alameda, CA

Average daylight / Average sunshine - Alameda, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days
Alameda, CA

Average sunshine days - Alameda, CA

The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index
Alameda, CA

Average UV index - Alameda, CA

Months with the highest UV index are April, May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, November and December (UV index 3).

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Average visibility
Alameda, CA

Average visibility - Alameda, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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