January weather forecast
San Luis Rey, CA

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Weather in January

January, like December, in San Luis Rey, California, is another comfortable winter month, with an average temperature ranging between max 64°F (17.8°C) and min 50.7°F (10.4°C).

Temperature

January's average high-temperature is a still enjoyable 64°F (17.8°C), maintaining a close comparison with December's 62.4°F (16.9°C). January brings San Luis Rey a consistent average low-temperature of 50.7°F (10.4°C).

Humidity

In January, the average relative humidity in San Luis Rey is 61%.

Rainfall

In San Luis Rey, in January, it is raining for 6 days, with typically 1.26" (32mm) of accumulated precipitation. In San Luis Rey, during the entire year, the rain falls for 68.2 days and collects up to 9.49" (241mm) of precipitation.

Daylight

In San Luis Rey, the average length of the day in January is 10h and 15min.
On the first day of January in San Luis Rey, sunrise is at 6:52 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 5:19 pm PST.

Sunshine

In January, the average sunshine is 6.8h.

UV index

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in San Luis Rey. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 4 suggests these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What are the temperatures in San Luis Rey in January?

An average high-temperature, in January, in San Luis Rey, is 64°F (17.8°C) and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in January in San Luis Rey?

The average relative humidity in January is 61%.

How much does it rain in San Luis Rey in January?

In San Luis Rey, California, in January, during 6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

How many hours of daylight does San Luis Rey have in January?

The average day length in January in San Luis Rey, California, is 10h and 15min.

What time are sunrise and sunset in January in San Luis Rey?

In January, on the first day of the month, sunrise is at 6:52 am and sunset at 4:52 pm. On the last day of the month, in San Luis Rey, sunrise is at 6:45 am and sunset at 5:19 pm PST.

How many hours of sunshine does San Luis Rey have in January?

In San Luis Rey, California, the average sunshine duration in January is 6.8h.

When is the lowest UV index in San Luis Rey?

The months with the lowest UV index in San Luis Rey are January through March, November and December, with an average maximum UV index of 4.

What is the UV index intensity in January in San Luis Rey?

The average daily maximum UV index in January is 4. A UV Index 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
San Luis Rey, CA

Average temperature in January - San Luis Rey, CA
  • Average high temperature in January: 64°F

The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in January: 50.7°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

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Average pressure in January
San Luis Rey, CA

Average pressure in January - San Luis Rey, CA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).

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Average wind speed in January
San Luis Rey, CA

Average wind speed in January - San Luis Rey, CA
  • Average wind speed in January: 5.1mph

The windiest months (with the highest average wind speed) are April and May (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).

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Average humidity in January
San Luis Rey, CA

Average humidity in January - San Luis Rey, CA
  • Average humidity in January: 61%

The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (60%).

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Average rainfall in January
San Luis Rey, CA

Average rainfall in January - San Luis Rey, CA
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in January
San Luis Rey, CA

Average rainfall days in January - San Luis Rey, CA
  • Average rainfall days in January: 6 days

The month with the highest number of rainy days is March (8 days).
The month with the least rainy days is June (2.7 days).

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Average daylight in January /
Average sunshine in January
San Luis Rey, CA

Average daylight in January / Average sunshine in January - San Luis Rey, CA
  • Average daylight in January: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in January: 6h and 5min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in January
San Luis Rey, CA

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

The month with the most sunshine days is October (24.2 days).
The month with the least sunshine days is February (20 days).

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Average UV index in January
San Luis Rey, CA

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

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

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Average cloud cover in January
San Luis Rey, CA

Average cloud cover in January - San Luis Rey, CA
  • Average cloud cover in January: 22

The month with the most cloud cover is December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in January
San Luis Rey, CA

Average visibility in January - San Luis Rey, 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 Luis Rey, California, USA

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