January weather forecast and climate
Moss Beach, CA

Weather in January

January, the same as December, in Moss Beach, California, is another mild winter month, with average temperature varying between 55.9°F (13.3°C) and 48.7°F (9.3°C).

Temperature

In January, the average high-temperature is relatively the same as in December - a still moderate 55.9°F (13.3°C). The average low-temperature, in January, is 48.7°F (9.3°C).

Humidity

In Moss Beach, California, the average relative humidity is 74%.

Rainfall

In Moss Beach, during January, the rain falls for 8.3 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Moss Beach, during the entire year, the rain falls for 77.3 days and collects up to 6.81" (173mm) of precipitation.

Ocean temperature

In Moss Beach, the average water temperature is 53.2°F (11.8°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

The average length of the day in January is 9.9h.

Sunshine

In January, the average sunshine is 5.9h.

UV index

The average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in January in Moss Beach?

In Moss Beach, in January, the average high-temperature is 55.9°F (13.3°C), and the average low-temperature is 48.7°F (9.3°C).

What is the average humidity in January in Moss Beach?

The average relative humidity in January in Moss Beach, California, is 74%.

How many days does it rain in January in Moss Beach?

In Moss Beach, during January, the rain falls for 8.3 days and regularly aggregates up to 1.18" (30mm) of precipitation.

What is the water temperature in January in Moss Beach?

In Moss Beach, California, the average seawater temperature in January is 53.2°F (11.8°C). Swimming in 53.2°F (11.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Moss Beach?

In Moss Beach, the average length of the day in January is 9.9h.

How long on average sun shines in January in Moss Beach?

In January, the average sunshine in Moss Beach is 5.9h.

What is the UV index reading in January in Moss Beach?

The average daily maximum UV index in January in Moss Beach, California, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in January
Moss Beach, CA

Average temperature in January - Moss Beach, CA
  • Average high temperature in January: 55.9°F

The warmest month (with the highest average high temperature) is September (67.5°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in January: 48.7°F

The month with the highest average low temperature is September (56.8°F).
The coldest months (with the lowest average low temperature) are January and February (48.7°F).

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Average pressure in January
Moss Beach, CA

Average pressure in January - Moss Beach, 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 September (29.92").

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Average wind speed in January
Moss Beach, CA

Average wind speed in January - Moss Beach, CA
  • Average wind speed in January: 7.4mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are August and September (6.8mph).

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Average humidity in January
Moss Beach, CA

Average humidity in January - Moss Beach, CA
  • Average humidity in January: 74%

The month with the highest relative humidity is August (82%).
Months with the lowest relative humidity are November and December (72%).

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Average rainfall in January
Moss Beach, CA

Average rainfall in January - Moss Beach, CA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is February (1.34").
The driest months (with the least rainfall) are June, July and September (0.12").

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Average rainfall days in January
Moss Beach, CA

Average rainfall days in January - Moss Beach, CA
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is September (3.6 days).

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Average sea temperature in January
Moss Beach, CA

Average sea temperature in January - Moss Beach, CA
  • Average sea temperature in January: 53.3°F

The best month for swimming (with the highest average sea temperature) is September (56.9°F).
The coldest month (with the lowest average sea temperature) is June (52.4°F).

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Average daylight in January /
Average sunshine in January
Moss Beach, CA

Average daylight in January / Average sunshine in January - Moss Beach, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in January: 5.9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in January
Moss Beach, CA

Average sunshine days in January - Moss Beach, CA
  • Average sunshine days in January: 21.6 days

The month with the most sunshine days is October (24.5 days).
The month with the least sunshine days is August (18.7 days).

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Average UV index in January
Moss Beach, CA

Average UV index in January - Moss Beach, CA
  • Average UV index in January: 4

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

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Average cloud cover in January
Moss Beach, CA

Average cloud cover in January - Moss Beach, CA
  • Average cloud cover in January: 35

The month with the most cloud cover is March (Cloud cover 39).
Months with the least cloud cover are September and October (Cloud cover 21).

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Average visibility in January
Moss Beach, CA

Average visibility in January - Moss Beach, 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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