January weather forecast
San Anselmo, CA

Weather in January

January, the same as December, in San Anselmo, California, is a moderate winter month, with an average temperature varying between 56.1°F (13.4°C) and 45.5°F (7.5°C).

Temperature

In San Anselmo, California, the average high-temperature in January is essentially the same as in December - a still moderate 56.1°F (13.4°C). In January, in San Anselmo, the average low-temperature is 45.5°F (7.5°C).

Humidity

The average relative humidity in January is 74%.

Rainfall

In San Anselmo, during January, the rain falls for 5.9 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

The average length of the day in January in San Anselmo is 9h and 53min.
On the first day of January, sunrise is at 7:26 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:32 pm PST.

Sunshine

The average sunshine in January in San Anselmo is 5.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
[Resources]

FAQ

What is the temperature in January in San Anselmo?

The average high-temperature, in January, in San Anselmo, is 56.1°F (13.4°C), while the average low-temperature is 45.5°F (7.5°C).

What is the average humidity in January in San Anselmo?

The average relative humidity in January is 74%.

How much does it rain in San Anselmo in January?

In San Anselmo, California, in January, during 5.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

What is the average length of the day in January in San Anselmo?

In January, the average day length is 9h and 53min.

When is the sunrise / sunset in January in San Anselmo?

On the first day of January, sunrise is at 7:26 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:32 pm PST.

How many hours of sunshine does San Anselmo have in January?

The average sunshine duration in January in San Anselmo, California, is 5.7h.

What is the month with the lowest UV index in San Anselmo?

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

How high is the UV index in January in San Anselmo?

In January, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
San Anselmo, CA

Average temperature in January - San Anselmo, 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 (55.4°F).

  • Average low temperature in January: 45.5°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

[Resources]

Average pressure in January
San Anselmo, CA

Average pressure in January - San Anselmo, 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).

[Resources]

Average wind speed in January
San Anselmo, CA

Average wind speed in January - San Anselmo, CA
  • Average wind speed in January: 6mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

[Resources]

Average humidity in January
San Anselmo, CA

Average humidity in January - San Anselmo, CA
  • Average humidity in January: 74%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

[Resources]

Average rainfall in January
San Anselmo, CA

Average rainfall in January - San Anselmo, CA
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

[Resources]

Average rainfall days in January
San Anselmo, CA

Average rainfall days in January - San Anselmo, CA
  • Average rainfall days in January: 5.9 days

The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).

[Resources]

Average daylight in January /
Average sunshine in January
San Anselmo, CA

Average daylight in January / Average sunshine in January - San Anselmo, CA
  • Average daylight in January: 9h and 53min

The month with the longest days is June (Average daylight: 14h and 46min).
The month with the shortest days is December (Average daylight: 9h and 35min).

  • Average sunshine in January: 5h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

[Resources]

Average sunshine days in January
San Anselmo, CA

Average sunshine days in January - San Anselmo, CA
  • Average sunshine days in January: 24.2 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

[Resources]

Average UV index in January
San Anselmo, CA

Average UV index in January - San Anselmo, 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).

[Resources]

Average cloud cover in January
San Anselmo, CA

Average cloud cover in January - San Anselmo, CA
  • Average cloud cover in January: 36

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

[Resources]

Average visibility in January
San Anselmo, CA

Average visibility in January - San Anselmo, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location