January weather forecast
Berkeley, CA

the neon-lit iconic Berkeley University Sather Tower in California
the neon-lit iconic Berkeley University Sather Tower in California

Weather in January

January, like December, is another mild winter month in Berkeley, California, with temperature in the range of an average high of 56.3°F (13.5°C) and an average low of 44.2°F (6.8°C).

Temperature

In January, the average high-temperature is essentially the same as in December - a still moderate 56.3°F (13.5°C). In Berkeley, the average low-temperature is 44.2°F (6.8°C).

Humidity

The average relative humidity in January is 73%.

Rainfall

In Berkeley, in January, during 7.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Berkeley, California, during the entire year, the rain falls for 55.6 days and collects up to 5.24" (133mm) of precipitation.

Daylight

In Berkeley, the average length of the day in January is 9h and 54min.
On the first day of January in Berkeley, California, sunrise is at 7:24 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:31 pm PST.

Sunshine

In January, the average sunshine in Berkeley is 6.1h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Berkeley, California. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 the 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.
[Resources]

FAQ

What is the temperature in January in Berkeley?

In Berkeley, in January, the average high-temperature is 56.3°F (13.5°C), and the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in January in Berkeley?

In January, the average relative humidity is 73%.

How much does it rain in Berkeley in January?

In January, in Berkeley, California, the rain falls for 7.6 days. Throughout January, 0.94" (24mm) of precipitation is accumulated.

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

In Berkeley, California, the average day length in January is 9h and 54min.

When are sunrise and sunset in January in Berkeley?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 5:00 pm. On the last day of the month, in Berkeley, sunrise is at 7:13 am and sunset at 5:31 pm PST.

How many hours of sunshine does Berkeley have in January?

In January, the average sunshine duration is 6.1h.

When is the lowest UV index in Berkeley?

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

How high is the UV index in January in Berkeley?

The average daily maximum UV index in January in Berkeley, California, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Berkeley, CA

Average temperature in January - Berkeley, CA
  • Average high temperature in January: 56.3°F

The warmest month (with the highest average high temperature) is September (76.6°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in January: 44.2°F

The month with the highest average low temperature is September (56.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

[Resources]

Average pressure in January
Berkeley, CA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

[Resources]

Average wind speed in January
Berkeley, CA

Average wind speed in January - Berkeley, CA
  • Average wind speed in January: 5.3mph

The windiest month (with the highest average wind speed) is May (7.3mph).
The calmest month (with the lowest average wind speed) is November (5mph).

[Resources]

Average humidity in January
Berkeley, CA

Average humidity in January - Berkeley, CA
  • Average humidity in January: 73%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (64%).

[Resources]

Average rainfall in January
Berkeley, CA

Average rainfall in January - Berkeley, CA
  • Average rainfall in January: 0.94"

The wettest month (with the highest rainfall) is February (1.1").
The driest months (with the least rainfall) are June, July, August and September (0.08").

[Resources]

Average rainfall days in January
Berkeley, CA

Average rainfall days in January - Berkeley, CA
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (1.5 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Berkeley, CA
  • Average daylight in January: 9h and 54min

The month with the longest days is June (Average daylight: 14h and 45min).
The month with the shortest days is December (Average daylight: 9h and 35min).

  • Average sunshine in January: 6h and 6min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

[Resources]

Average sunshine days in January
Berkeley, CA

Average sunshine days in January - Berkeley, CA
  • Average sunshine days in January: 22.3 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (20.5 days).

[Resources]

Average UV index in January
Berkeley, CA

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

The months with the highest UV index are April, May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in January
Berkeley, CA

Average cloud cover in January - Berkeley, CA
  • Average cloud cover in January: 33

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 11).

[Resources]

Average visibility in January
Berkeley, CA

Average visibility in January - Berkeley, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location