Monthly weather forecast and climate
Belmont, CA

Weather in January

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

Weather in March

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

Weather in April

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

Weather in June

June, the first month of the summer, in Belmont, is an agreeable month, with average temperature ranging between min 53.2°F (11.8°C) and max 70.3°F (21.3°C). In Belmont, the average high-temperature is essentially the same as in May - an agreeable 70.3°F (21.3°C). Weather in June »

Weather in July

July, like June, is another pleasant summer month in Belmont, California, with average temperature ranging between min 54.3°F (12.4°C) and max 72.9°F (22.7°C). In Belmont, California, the average high-temperature in July is almost the same as in June - a still pleasant 72.9°F (22.7°C). Weather in July »

Weather in August

The last month of the summer, August, is also an agreeable month in Belmont, California, with average temperature varying between 73°F (22.8°C) and 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 still a pleasant month in Belmont, California, with average temperature varying between 72.9°F (22.7°C) and 56.7°F (13.7°C). In September, the average high-temperature is practically the same as in August - a still agreeable 72.9°F (22.7°C). Weather in September »

Weather in October

October, the same as September, in Belmont, California, is an agreeable autumn month, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 68.5°F (20.3°C). In October, 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 Belmont, California, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 50.5°F (10.3°C). In November, the average high-temperature marginally drops, 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 Belmont, is also a moderate 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 many days does it rain in Belmont?

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

What is the rainiest month in Belmont?

February is the month with the most rainfall in Belmont. 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?

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

When are the longest days in Belmont?

The month with the longest days in Belmont is June, with an average of 14.7h of daylight.

What are the months with the highest UV index in Belmont?

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

What is the driest month in Belmont?

July and August are months with the least rain in Belmont 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?

The month with the most sunshine is July, 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.

What is the least humid month in Belmont?

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

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 9.6h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Belmont?

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

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

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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: 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
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

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
Belmont, CA

Average visibility - Belmont, 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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