Climate and monthly weather forecast
Belmont, CA

Weather in January

January, the same as December, in Belmont, California, is another mild winter month, with an average temperature ranging between min 46°F (7.8°C) and max 56.8°F (13.8°C). In January, the average high-temperature is relatively 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 Belmont, is another mild month, with an average temperature fluctuating between 46.2°F (7.9°C) and 58.1°F (14.5°C). In Belmont, the average high-temperature in February is practically the same as in January - a still moderate 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 Belmont, California, with an average temperature fluctuating between 47.1°F (8.4°C) and 59.7°F (15.4°C). In Belmont, California, the average high-temperature in March is practically the same as in February - a still mild 59.7°F (15.4°C). Weather in March »

Weather in April

April in Belmont, California, is an enjoyable spring month, with an average temperature fluctuating between 48°F (8.9°C) and 62.6°F (17°C). In Belmont, the average high-temperature in April is practically 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 another comfortable month in Belmont, California, with an average temperature varying between 65.1°F (18.4°C) and 50°F (10°C). In May, the average high-temperature is practically the same as in April - a still comfortable 65.1°F (18.4°C). Weather in May »

Weather in June

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

Weather in July

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

Weather in August

August, the last month of the summer in Belmont, is another pleasant month, with an average temperature ranging between max 73°F (22.8°C) and min 56.1°F (13.4°C). August is the warmest month, with an average high-temperature of 73°F (22.8°C) and an average low-temperature of 56.1°F (13.4°C). Weather in August »

Weather in September

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

Weather in October

October, like September, is an agreeable autumn month in Belmont, California, with an average temperature varying between 54.9°F (12.7°C) and 68.5°F (20.3°C). In October, the average high-temperature is almost 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 also an enjoyable month in Belmont, California, with an average temperature ranging between max 61.7°F (16.5°C) and min 50.5°F (10.3°C). In November, the average high-temperature slightly decreases from an agreeable 68.5°F (20.3°C) in October to an enjoyable 61.7°F (16.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a mild month in Belmont, California, with an average temperature varying between 55.9°F (13.3°C) and 46.2°F (7.9°C). The coldest month is December, 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 many days does it rain in Belmont?

In Belmont, during the entire year, the rain falls for 77.5 days and collects up to 11.22" (285mm) of precipitation.

What is the rainiest month in Belmont?

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

What is the month with the lowest UV index in Belmont?

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 Belmont?

With an average relative humidity of 75%, March is the most humid month.

When is Daylight Saving Time (DST) in Belmont?

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 Belmont?

The month with the longest days is June, with an average of 14h and 43min of daylight.

What is the month with the highest UV index in Belmont?

The months with the highest UV index in Belmont, California, are June through September, with an average maximum UV index of 5.

What is the driest month in Belmont?

July and August are months with the least rain in Belmont, California, when the rain falls for 1.8 days and typically aggregates up to 0.08" (2mm) of rain.

What month has the most sunshine in Belmont?

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

What is the warmest month in Belmont?

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 Belmont, California.

What is the least humid month in Belmont?

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

What is the coldest month in Belmont?

December is the coldest month in Belmont, California, 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 Belmont?

With an average of 9h and 37min of daylight, December has the shortest days of the year in Belmont, California.

What is the month with the least sunshine in Belmont?

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

Average temperature
Belmont, CA

Average temperature - Belmont, 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
Belmont, CA

Average pressure - Belmont, CA

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

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Average wind speed
Belmont, CA

Average wind speed - Belmont, 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
Belmont, CA

Average rainfall - Belmont, 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
Belmont, CA

Average rainfall days - Belmont, 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
Belmont, CA

Average daylight / Average sunshine - Belmont, CA

The month with the longest days is June (Average daylight: 14h and 43min).
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 48min).

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Average sunshine days
Belmont, CA

Average sunshine days - Belmont, 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
Belmont, CA

Average UV index - Belmont, CA

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

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Average visibility
Belmont, CA

Average visibility - Belmont, 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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