January weather forecast and climate
Mendocino, CA

Weather in January

January, the same as December, is a cool winter month in Mendocino, California, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 46.9°F (8.3°C).

Temperature

In January, the average high-temperature is almost the same as in December - a still cool 54.9°F (12.7°C). The average low-temperature, in Mendocino, is 46.9°F (8.3°C).

Humidity

In Mendocino, the average relative humidity is 77%.

Rainfall

In January, the rain falls for 9.8 days. Throughout January, 1.65" (42mm) of precipitation is accumulated. In Mendocino, during the entire year, the rain falls for 68.4 days and collects up to 9.53" (242mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Mendocino.

Ocean temperature

In Mendocino, the average seawater temperature is 52.7°F (11.5°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In January, the average length of the day is 9.8h.

Sunshine

In January, the average sunshine is 5.6h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Mendocino. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against the 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in January in Mendocino?

In January, in Mendocino, California, the average high-temperature is 54.9°F (12.7°C), and the average low-temperature is 46.9°F (8.3°C).

What is the average humidity in January in Mendocino?

In Mendocino, the average relative humidity in January is 77%.

How many days does it rain in January in Mendocino?

In Mendocino, in January, it is raining for 9.8 days, with typically 1.65" (42mm) of accumulated precipitation.

Does it snow in Mendocino in January?

In Mendocino, California, in January, it doesn't snow. In February, it regularly snows.

When it does not snow in Mendocino?

January, March through December are months without snowfall in Mendocino, California.

What is the ocean temperature in January in Mendocino?

In Mendocino, the average seawater temperature in January is 52.7°F (11.5°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Mendocino have in January?

In Mendocino, the average length of the day in January is 9.8h.

How many hours of sunshine does Mendocino have in January?

In January, the average sunshine in Mendocino, California, is 5.6h.

What are the months with the lowest UV index in Mendocino?

Months with the lowest UV index in Mendocino, California, are January, February, November and December, with an average maximum UV index of 3.

What is the UV index intensity in January in Mendocino?

In Mendocino, the average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in January
Mendocino, CA

Average temperature in January - Mendocino, CA
  • Average high temperature in January: 54.9°F

The warmest month (with the highest average high temperature) is September (67.5°F).
Months with the lowest average high temperature are February and December (54.3°F).

  • Average low temperature in January: 46.9°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

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Average pressure in January
Mendocino, CA

Average pressure in January - Mendocino, CA
  • Average pressure in January: 30.13"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is August (29.93").

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Average wind speed in January
Mendocino, CA

Average wind speed in January - Mendocino, CA
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in January
Mendocino, CA

Average humidity in January - Mendocino, CA
  • Average humidity in January: 77%

Months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in January
Mendocino, CA

Average rainfall in January - Mendocino, CA
  • Average rainfall in January: 1.65"

The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").

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Average rainfall days in January
Mendocino, CA

Average rainfall days in January - Mendocino, CA
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is March (11.4 days).
Months with the least rainy days are June and August (1.8 days).

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Average snowfall in January
Mendocino, CA

Average snowfall in January - Mendocino, CA
  • Average snowfall in January: 0"

The month with the highest snowfall is February (0.04").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in January
Mendocino, CA

Average snowfall days in January - Mendocino, CA
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is February (0.1 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average sea temperature in January
Mendocino, CA

Average sea temperature in January - Mendocino, CA
  • Average sea temperature in January: 52.6°F

The best month for swimming (with the highest average sea temperature) is October (55.6°F).
The coldest month (with the lowest average sea temperature) is April (52.1°F).

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

Average daylight in January / Average sunshine in January - Mendocino, CA
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 5.6h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in January
Mendocino, CA

Average sunshine days in January - Mendocino, CA
  • Average sunshine days in January: 20 days

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).

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Average UV index in January
Mendocino, CA

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in January
Mendocino, CA

Average cloud cover in January - Mendocino, CA
  • Average cloud cover in January: 39

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 10).

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Average visibility in January
Mendocino, CA

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

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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