Climate and monthly weather forecast
San Leandro, CA

Weather in January

January, like December, is a moderate winter month in San Leandro, California, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 44.1°F (6.7°C). In San Leandro, the average high-temperature in January is relatively the same as in December - a still moderate 56.8°F (13.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a moderate month in San Leandro, California, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 58.8°F (14.9°C). In San Leandro, the average high-temperature in February is practically the same as in January - a still moderate 58.8°F (14.9°C). Weather in February »

Weather in March

March, the first month of the spring in San Leandro, is an enjoyable month, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 61.3°F (16.3°C). In March, the average high-temperature is relatively the same as in February - a comfortable 61.3°F (16.3°C). Weather in March »

Weather in April

April, like March, in San Leandro, California, is another comfortable spring month, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.3°F (18.5°C). In April, the average high-temperature is practically the same as in March - a still enjoyable 65.3°F (18.5°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in San Leandro, California, with an average temperature fluctuating between 49.6°F (9.8°C) and 68.9°F (20.5°C). In May, the average high-temperature is relatively the same as in April - a pleasant 68.9°F (20.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in San Leandro, California, with an average temperature fluctuating between 53.4°F (11.9°C) and 75°F (23.9°C). In June, the average high-temperature slightly increases from an agreeable 68.9°F (20.5°C) in May to a warm 75°F (23.9°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in San Leandro, California, with an average temperature ranging between min 54.9°F (12.7°C) and max 77.7°F (25.4°C). The warmest months are July and September, with an average high-temperature of 77.7°F (25.4°C). Weather in July »

Weather in August

August, the last month of the summer in San Leandro, is another warm month, with an average temperature varying between 77.5°F (25.3°C) and 55.9°F (13.3°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 77.5°F (25.3°C). Weather in August »

Weather in September

September, the first month of the autumn in San Leandro, is also a moderately hot month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 77.7°F (25.4°C). July and September, with an average high-temperature of 77.7°F (25.4°C), are the warmest months. Weather in September »

Weather in October

October, the same as September, in San Leandro, California, is an agreeable autumn month, with an average temperature ranging between max 71.4°F (21.9°C) and min 54°F (12.2°C). In San Leandro, the average high-temperature in October slightly decreases from a warm 77.7°F (25.4°C) in September to an agreeable 71.4°F (21.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in San Leandro, California, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 48.4°F (9.1°C). In November, the average high-temperature slightly decreases from an agreeable 71.4°F (21.9°C) in October to an enjoyable 63.1°F (17.3°C). Weather in November »

Weather in December

December, the first month of the winter in San Leandro, is still a mild month, with an average temperature ranging between min 44.4°F (6.9°C) and max 55.8°F (13.2°C). With an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 44.4°F (6.9°C), December is the coldest month. Weather in December »
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FAQ

How much does it rain in San Leandro?

Throughout the year, there are 57.7 rainfall days, and 5.71" (145mm) of precipitation is accumulated.

When is the lowest UV index in San Leandro?

The months with the lowest UV index in San Leandro, California, are January, February, November and December, with an average maximum UV index of 3.

What is the wettest month in San Leandro?

February is the month with the most rainfall. Rain falls for 6.3 days and accumulates 1.26" (32mm) of precipitation.

What is the most humid month in San Leandro?

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

When is Daylight Saving Time (DST) in San Leandro?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from PDT to PST.

When are the longest days in San Leandro?

June has the longest days of the year, with an average of 14h and 44min of daylight.

When is the highest UV index in San Leandro?

June is the month with the highest UV index, with an average maximum UV index of 6.

What is the warmest month in San Leandro?

Warmest months are July and September, with an average high-temperature of 77.7°F (25.4°C).

What is the driest month in San Leandro?

The months with the least rainfall in San Leandro are July through September Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in San Leandro?

July has the most sunshine of the year in San Leandro, with an average of 12h of sunshine.

What is the least humid month in San Leandro?

The months with the lowest humidity in San Leandro, California, are September and October, with an average relative humidity of 64%.

What is the coldest month in San Leandro?

With an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 44.4°F (6.9°C), December is the coldest month.

What is the month with the shortest days in San Leandro?

December has the shortest days of the year in San Leandro, California, with an average of 9h and 37min of daylight.

What is the month with the least sunshine in San Leandro?

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

Average temperature
San Leandro, CA

Average temperature - San Leandro, CA

The warmest months (with the highest average high temperature) are July and September (77.7°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 (44.1°F).

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Average pressure
San Leandro, CA

Average pressure - San Leandro, CA

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).

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Average wind speed
San Leandro, CA

Average wind speed - San Leandro, CA

The windiest month (with the highest average wind speed) is May (7mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).

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Average humidity
San Leandro, CA

Average humidity - San Leandro, CA

The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are September and October (64%).

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Average rainfall
San Leandro, CA

Average rainfall - San Leandro, CA

The wettest month (with the highest rainfall) is February (1.26").
The driest months (with the least rainfall) are July, August and September (0.04").

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Average rainfall days
San Leandro, CA

Average rainfall days - San Leandro, CA

The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is August (0.7 days).

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Average daylight / Average sunshine
San Leandro, CA

Average daylight / Average sunshine - San Leandro, CA

The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 37min).

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days
San Leandro, CA

Average sunshine days - San Leandro, CA

The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is March (19.1 days).

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Average UV index
San Leandro, CA

Average UV index - San Leandro, CA

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
San Leandro, CA

Average visibility - San Leandro, 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).

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