Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With the onset of January, the average high-temperature registers at a refreshing 56.1°F (13.4°C), subtly different from December's 55.2°F (12.9°C). In Belvedere, January is marked by an average low-temperature of 46.2°F (7.9°C).Humidity
In January, the average relative humidity is 73%.Rainfall
In Belvedere, in January, it is raining for 7.6 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, there are 64.2 rainfall days, and 4.8" (122mm) of precipitation is accumulated.Ocean temperature
In Belvedere, California, in January, the average water temperature is 53.2°F (11.8°C).Note: Swimming in 53.2°F (11.8°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.
Daylight
In Belvedere, the average length of the day in January is 9h and 54min.On the first day of the month, sunrise is at 7:25 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:31 pm PST.
Sunshine
In January, the average sunshine is 5.9h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 in January translates into these instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January in Belvedere?
How many days does it rain in January in Belvedere?
What is the ocean temperature in January?
How many hours of daylight does Belvedere have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Belvedere have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Belvedere, CA
- Average high temperature in January: 56.1°F
The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in January: 46.2°F
The month with the highest average low temperature is September (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (46.2°F).
Average pressure in January
Belvedere, CA
- Average pressure in January: 30.13"Hg
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).
Average wind speed in January
Belvedere, CA
- Average wind speed in January: 6.1mph
The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are October and November (5.7mph).
Average humidity in January
Belvedere, CA
- Average humidity in January: 73%
The months with the highest relative humidity are March and August (76%).
The month with the lowest relative humidity is October (68%).
Average rainfall in January
Belvedere, CA
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is February (0.98").
The driest months (with the least rainfall) are June, July, August and September (0.08").
Average rainfall days in January
Belvedere, CA
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is June (1.9 days).
Average sea temperature in January
Belvedere, CA
- Average sea temperature in January: 53.2°F
The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).
Average daylight in January /
Average sunshine in January
Belvedere, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Belvedere, CA
- Average sunshine days in January: 22.1 days
The month with the most sunshine days is October (25 days).
The month with the least sunshine days is March (18.4 days).
Average UV index in January
Belvedere, CA
- Average UV index in January: 3
The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Belvedere, CA
- Average cloud cover in January: 34
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in January
Belvedere, 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).
Belvedere, California, USA
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