January weather forecast
San Simeon, CA

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Weather in January

January, like December, is a moderate winter month in San Simeon, California, with an average temperature fluctuating between 59.5°F (15.3°C) and 49.6°F (9.8°C).

Temperature

As December transitions into January, San Simeon records an average high-temperature of a still refreshing 59.5°F (15.3°C), showing a gentle shift from the preceding month. San Simeon experiences a steady low-temperature of 49.6°F (9.8°C) throughout January.

Humidity

The average relative humidity in January in San Simeon is 68%.

Rainfall

In San Simeon, during January, the rain falls for 5.9 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, in San Simeon, there are 50 rainfall days, and 7.4" (188mm) of precipitation is accumulated.

Daylight

In San Simeon, the average length of the day in January is 10h and 4min.
On the first day of January, sunrise is at 7:14 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:30 pm PST.

Sunshine

In January, the average sunshine in San Simeon is 6.6h.

UV index

The months with the lowest UV index in San Simeon are January through April, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 4 in January, converts into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What are the temperatures in San Simeon in January?

The average high-temperature and low-temperature in San Simeon, California, during January are 59.5°F (15.3°C) and 49.6°F (9.8°C) respectively.

What is the average humidity in January in San Simeon?

In San Simeon, the average relative humidity in January is 68%.

How much does it rain in San Simeon in January?

In San Simeon, California, in January, during 5.9 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

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

In January, the average day length in San Simeon, California, is 10h and 4min.

What time are sunrise and sunset in January in San Simeon?

On the first day of January in San Simeon, California, sunrise is at 7:14 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:30 pm PST.

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

In January, the average sunshine duration in San Simeon is 6.6h.

What are the months with the lowest UV index in San Simeon?

January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index in San Simeon, California.

What is the UV index intensity in January in San Simeon?

The average daily maximum UV index in January in San Simeon, California, is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
San Simeon, CA

Average temperature in January - San Simeon, CA
  • Average high temperature in January: 59.5°F

The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is December (58.1°F).

  • Average low temperature in January: 49.6°F

The month with the highest average low temperature is September (60.1°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).

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Average pressure in January
San Simeon, CA

Average pressure in January - San Simeon, CA
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in January
San Simeon, CA

Average wind speed in January - San Simeon, CA
  • Average wind speed in January: 7.4mph

The windiest month (with the highest average wind speed) is May (10.6mph).
The calmest month (with the lowest average wind speed) is November (7.3mph).

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Average humidity in January
San Simeon, CA

Average humidity in January - San Simeon, CA
  • Average humidity in January: 68%

The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is October (64%).

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Average rainfall in January
San Simeon, CA

Average rainfall in January - San Simeon, CA
  • Average rainfall in January: 1.34"

The wettest month (with the highest rainfall) is December (1.5").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in January
San Simeon, CA

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

The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.5 days).

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

Average daylight in January / Average sunshine in January - San Simeon, CA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 6h and 4min

The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in January
San Simeon, CA

Average sunshine days in January - San Simeon, CA
  • Average sunshine days in January: 23.8 days

The month with the most sunshine days is August (29.5 days).
The month with the least sunshine days is February (20.3 days).

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Average UV index in January
San Simeon, CA

Average UV index in January - San Simeon, CA
  • Average UV index in January: 4

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

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Average cloud cover in January
San Simeon, CA

Average cloud cover in January - San Simeon, CA
  • Average cloud cover in January: 25

The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in January
San Simeon, CA

Average visibility in January - San Simeon, 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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San Simeon, California, USA

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