January 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).

Temperature

In January, the average high-temperature is relatively the same as in December - a still moderate 56.8°F (13.8°C). In Belmont, the average low-temperature is 46°F (7.8°C).

Humidity

The average relative humidity in January in Belmont is 73%.

Rainfall

In Belmont, California, in January, during 9.9 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, in Belmont, there are 77.5 rainfall days, and 11.22" (285mm) of precipitation is accumulated.

Daylight

In Belmont, the average length of the day in January is 9h and 56min.
On the first day of January in Belmont, sunrise is at 7:23 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:31 pm PST.

Sunshine

In January, the average sunshine is 6.2h.

UV index

The average daily maximum UV index in January in Belmont is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In January, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Belmont?

The average high-temperature, in January, in Belmont, is 56.8°F (13.8°C), while the average low-temperature is 46°F (7.8°C).

What is the average humidity in January in Belmont?

In Belmont, California, the average relative humidity in January is 73%.

How many days does it rain in January in Belmont?

In January, in Belmont, the rain falls for 9.9 days. Throughout January, 1.69" (43mm) of precipitation is accumulated.

How many hours of daylight does Belmont have in January?

In January, the average day length in Belmont, California, is 9h and 56min.

When is the sunrise / sunset in January in Belmont?

In January, on the first day of the month, sunrise is at 7:23 am and sunset at 5:01 pm. On the last day of the month, in Belmont, California, sunrise is at 7:13 am and sunset at 5:31 pm PST.

How many hours of sunshine does Belmont have in January?

In Belmont, the average sunshine duration in January is 6.2h.

How high is the UV index in January in Belmont?

In Belmont, the average daily maximum UV index in January is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Belmont, CA

Average temperature in January - Belmont, CA
  • Average high temperature in January: 56.8°F

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).

  • Average low temperature in January: 46°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 in January
Belmont, CA

Average pressure in January - Belmont, CA
  • Average pressure in January: 30.13"Hg

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 in January
Belmont, CA

Average wind speed in January - Belmont, CA
  • Average wind speed in January: 5.8mph

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 humidity in January
Belmont, CA

Average humidity in January - Belmont, CA
  • Average humidity in January: 73%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in January
Belmont, CA

Average rainfall in January - Belmont, CA
  • Average rainfall in January: 1.69"

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 in January
Belmont, CA

Average rainfall days in January - Belmont, CA
  • Average rainfall days in January: 9.9 days

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 in January /
Average sunshine in January
Belmont, CA

Average daylight in January / Average sunshine in January - Belmont, CA
  • Average daylight in January: 9h and 56min

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).

  • Average sunshine in January: 6h and 12min

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 in January
Belmont, CA

Average sunshine days in January - Belmont, CA
  • Average sunshine days in January: 20.2 days

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 in January
Belmont, CA

Average UV index in January - Belmont, CA
  • Average UV index in January: 4

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 cloud cover in January
Belmont, CA

Average cloud cover in January - Belmont, CA
  • Average cloud cover in January: 32

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in January
Belmont, CA

Average visibility in January - Belmont, CA
  • Average visibility in January: 6mi

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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