January weather forecast
Tomales, CA

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Weather in January

January, the same as December, in Tomales, California, is another mild winter month, with an average temperature fluctuating between 56.5°F (13.6°C) and 45.7°F (7.6°C).

Temperature

January's onset sees an average high-temperature of a still refreshing 56.5°F (13.6°C), exhibiting a slight fluctuation from the previous month. Throughout the month of January, the nighttime temperature dips to an average of 45.7°F (7.6°C).

Humidity

The average relative humidity in January in Tomales, California, is 75%.

Rainfall

In January, the rain falls for 11.2 days. Throughout January, 3.27" (83mm) of precipitation is accumulated. In Tomales, during the entire year, the rain falls for 83.1 days and collects up to 20" (508mm) of precipitation.

Daylight

In Tomales, California, the average length of the day in January is 9h and 52min.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:32 pm PST.

Sunshine

The average sunshine in January in Tomales is 5.8h.

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 of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: During January, 3 as the daily maximum UV index converts into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average January temperature?

An average high-temperature, in January, in Tomales, is 56.5°F (13.6°C) and the average low-temperature is 45.7°F (7.6°C).

What is the average humidity in January?

In January, the average relative humidity is 75%.

How much does it rain in January?

In Tomales, in January, it is raining for 11.2 days, with typically 3.27" (83mm) of accumulated precipitation.

What is the average length of the day in January?

In January, the average day length is 9h and 52min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:32 pm PST.

How many hours of sunshine does Tomales have in January?

The average sunshine duration in January is 5.8h.

What are the months with the lowest UV index?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Tomales, CA

Average temperature in January - Tomales, CA
  • Average high temperature in January: 56.5°F

The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in January: 45.7°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

Average pressure in January
Tomales, CA

Average pressure in January - Tomales, 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 August and September (29.92"Hg).

Average wind speed in January
Tomales, CA

Average wind speed in January - Tomales, CA
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is May (9.9mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).

Average humidity in January
Tomales, CA

Average humidity in January - Tomales, CA
  • Average humidity in January: 75%

The month with the highest relative humidity is March (78%).
The months with the lowest relative humidity are September and October (71%).

Average rainfall in January
Tomales, CA

Average rainfall in January - Tomales, CA
  • Average rainfall in January: 3.27"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in January
Tomales, CA

Average rainfall days in January - Tomales, CA
  • Average rainfall days in January: 11.2 days

The month with the highest number of rainy days is March (14.4 days).
The month with the least rainy days is August (1.1 days).

Average daylight in January /
Average sunshine in January
Tomales, CA

Average daylight in January / Average sunshine in January - Tomales, CA
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in January
Tomales, CA

Average sunshine days in January - Tomales, CA
  • Average sunshine days in January: 18.8 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (14.8 days).

Average UV index in January
Tomales, CA

Average UV index in January - Tomales, CA
  • Average UV index in January: 3

The months with the highest UV index are 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
Tomales, CA

Average cloud cover in January - Tomales, 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 12).

Average visibility in January
Tomales, CA

Average visibility in January - Tomales, 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).

Tomales, California, USA

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