January weather forecast
Seaside, CA

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Weather in January

January, the same as December, in Seaside, California, is another refreshing winter month, with an average temperature varying between 46.4°F (8°C) and 59°F (15°C).

Temperature

During January, Seaside observes a subtle ascent to a still refreshing 59°F (15°C) from December's 57.2°F (14°C) in the average high-temperature. January is noted for a mean low-temperature of 46.4°F (8°C).

Humidity

In January, the average relative humidity is 71%.

Rainfall

In January, the rain falls for 9.3 days. Throughout January, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 73.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Daylight

In Seaside, the average length of the day in January is 10h and 0min.
On the first day of the month, sunrise is at 7:19 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:31 pm PST.

Sunshine

In January, the average sunshine is 6.4h.

UV index

In Seaside, the average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 4 translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What are January temperatures in Seaside?

In Seaside, 59°F (15°C) is the average high-temperature and 46.4°F (8°C) is the average low-temperature during January.

What is the average humidity in January in Seaside?

In Seaside, the average relative humidity in January is 71%.

How much does it rain in Seaside in January?

In Seaside, in January, during 9.3 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

What is the average length of the day in January in Seaside?

The average day length in January in Seaside, California, is 10h and 0min.

When are sunrise and sunset in January in Seaside?

On the first day of January in Seaside, California, sunrise is at 7:19 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:31 pm PST.

How long on average sun shines in January in Seaside?

In January, the average sunshine duration in Seaside, California, is 6.4h.

What is the UV index intensity in January in Seaside?

In January, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Seaside, CA

Average temperature in January - Seaside, CA
  • Average high temperature in January: 59°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 (57.2°F).

  • Average low temperature in January: 46.4°F

The months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in January
Seaside, CA

Average pressure in January - Seaside, CA
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

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Average wind speed in January
Seaside, CA

Average wind speed in January - Seaside, CA
  • Average wind speed in January: 6.2mph

The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in January
Seaside, CA

Average humidity in January - Seaside, CA
  • Average humidity in January: 71%

The months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).

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Average rainfall in January
Seaside, CA

Average rainfall in January - Seaside, CA
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in January
Seaside, CA

Average rainfall days in January - Seaside, CA
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (1.1 days).

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

Average daylight in January / Average sunshine in January - Seaside, CA
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in January: 6h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in January
Seaside, CA

Average sunshine days in January - Seaside, CA
  • Average sunshine days in January: 20.3 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in January
Seaside, CA

Average UV index in January - Seaside, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Seaside, CA

Average cloud cover in January - Seaside, CA
  • Average cloud cover in January: 29

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in January
Seaside, CA

Average visibility in January - Seaside, 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).

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Seaside, California, USA

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