Monthly weather forecast and climate
San Carlos, CA

Weather in January

January, like December, is another mild winter month in San Carlos, California, with average temperature fluctuating between 56.8°F (13.8°C) and 46°F (7.8°C). In San Carlos, the average high-temperature in January is essentially the same as in December - a still moderate 56.8°F (13.8°C). Weather in January »

Weather in February

February, the last month of the winter, in San Carlos, is another mild month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 58.1°F (14.5°C). In San Carlos, the average high-temperature in February is practically the same as in January - a still mild 58.1°F (14.5°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderate month in San Carlos, California, with average temperature fluctuating between 47.1°F (8.4°C) and 59.7°F (15.4°C). In March, the average high-temperature is almost the same as in February - a still moderate 59.7°F (15.4°C). Weather in March »

Weather in April

April in San Carlos, California, is an enjoyable spring month, with average temperature varying between 48°F (8.9°C) and 62.6°F (17°C). In San Carlos, the average high-temperature is essentially the same as in March - an enjoyable 62.6°F (17°C). Weather in April »

Weather in May

The last month of the spring, May, is also an enjoyable month in San Carlos, California, with temperature in the range of an average low of 50°F (10°C) and an average high of 65.1°F (18.4°C). In San Carlos, the average high-temperature is practically the same as in April - a still enjoyable 65.1°F (18.4°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in San Carlos, California, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 53.2°F (11.8°C). In San Carlos, the average high-temperature is relatively the same as in May - a pleasant 70.3°F (21.3°C). Weather in June »

Weather in July

July, the same as June, in San Carlos, California, is an agreeable summer month, with average temperature fluctuating between 72.9°F (22.7°C) and 54.3°F (12.4°C). In San Carlos, the average high-temperature is essentially the same as in June - a still agreeable 72.9°F (22.7°C). Weather in July »

Weather in August

August, the last month of the summer, in San Carlos, is also an agreeable month, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 73°F (22.8°C). With an average high-temperature of 73°F (22.8°C) and an average low-temperature of 56.1°F (13.4°C), August is the warmest month. Weather in August »

Weather in September

September, the first month of the autumn, in San Carlos, is also an agreeable month, with average temperature fluctuating between 72.9°F (22.7°C) and 56.7°F (13.7°C). In San Carlos, the average high-temperature is essentially the same as in August - a still pleasant 72.9°F (22.7°C). Weather in September »

Weather in October

October, the same as September, in San Carlos, California, is another pleasant autumn month, with average temperature varying between 54.9°F (12.7°C) and 68.5°F (20.3°C). In San Carlos, the average high-temperature is relatively the same as in September - a still pleasant 68.5°F (20.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in San Carlos, California, with average temperature ranging between min 50.5°F (10.3°C) and max 61.7°F (16.5°C). In San Carlos, the average high-temperature slightly decreases, from an agreeable 68.5°F (20.3°C) in October, to a comfortable 61.7°F (16.5°C). Weather in November »

Weather in December

December, the first month of the winter, in San Carlos, is still a mild month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 55.9°F (13.3°C). December is the coldest month, with an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 46.2°F (7.9°C). Weather in December »
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FAQ

How much does it rain in San Carlos?

Throughout the year, there are 77.5 rainfall days, and 11.22" (285mm) of precipitation is accumulated.

What is the wettest month in San Carlos?

February is the month with the most rainfall. Rain falls for 8.6 days and accumulates 2.09" (53mm) of precipitation.

What are the months with the lowest UV index in San Carlos?

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

What is the most humid month in San Carlos?

March is the most humid month in San Carlos, California, with an average relative humidity of 75%.

When are the longest days in San Carlos?

June has the longest days of the year in San Carlos, California, with an average of 14.7h of daylight.

What are the months with the highest UV index in San Carlos?

Months with the highest UV index are June through September, with an average maximum UV index of 5.

What is the driest month in San Carlos?

Months with the least rainfall in San Carlos, California, are July and August Rain falls for 1.8 days and accumulates 0.08" (2mm) of rain.

What month has the most sunshine in San Carlos?

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

What is the warmest month in San Carlos?

With an average high-temperature of 73°F (22.8°C) and an average low-temperature of 56.1°F (13.4°C), August is the warmest month in San Carlos, California.

What is the least humid month in San Carlos?

October is the least humid month, with an average relative humidity of 68%.

What is the coldest month in San Carlos?

December is the coldest month in San Carlos, with an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 46.2°F (7.9°C).

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

The month with the shortest days in San Carlos, California, is December, with an average of 9.6h of daylight.

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

With an average of 5.8h of sunshine, December has the least sunshine of the year.

Average temperature
San Carlos, CA

Average temperature - San Carlos, CA

The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.9°F).

The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is January (46°F).

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Average pressure
San Carlos, CA

Average pressure - San Carlos, CA

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.92").

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Average wind speed
San Carlos, CA

Average wind speed - San Carlos, CA

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).

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Average rainfall
San Carlos, CA

Average rainfall - San Carlos, CA

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days
San Carlos, CA

Average rainfall days - San Carlos, CA

The month with the highest number of rainy days is March (13 days).
The month with the least rainy days is July (1.8 days).

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Average daylight / Average sunshine
San Carlos, CA

Average daylight / Average sunshine - San Carlos, 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: 5.8h).

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Average sunshine days
San Carlos, CA

Average sunshine days - San Carlos, CA

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (16.3 days).

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Average UV index
San Carlos, CA

Average UV index - San Carlos, CA

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

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Average visibility
San Carlos, CA

Average visibility - San Carlos, 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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