January weather forecast
Daly City, CA

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Weather in January

In Daly City, the yearly weather cycle opens with January. A recurring characteristic of this month is the dense, heavy fog that rolls in, causing a certain subdued gloom over the city. The visibility, with an average of 6 miles, is often marred by the coastal mist. Coupled with cold winds rushing at 6.8mph (10.9km/h), this period tends to feel chilling despite temperatures ranging from 47.8°F (8.8°C) to 56.1°F (13.4°C). The month’s tumultuous climate is made notable by sporadic drizzling, which starts at about 10.3 days and accumulates to 2.28" (58mm) of rainfall.

Temperature

The shift into January in Daly City records an average high-temperature of a still moderate 56.1°F (13.4°C), subtly varied from December's 55.4°F (13°C). Daly City records a slight downturn to an average a frosty 47.8°F (8.8°C) during the nights of January.

Humidity

In Daly City, the average relative humidity in January is 74%.

Rainfall

In January, the rain falls for 10.3 days. Throughout January, 2.28" (58mm) of precipitation is accumulated. Throughout the year, in Daly City, there are 82.2 rainfall days, and 13.62" (346mm) of precipitation is accumulated.

Daylight

In Daly City, the average length of the day in January is 9h and 55min.
On the first day of the month, sunrise is at 7:24 am and sunset at 5:01 pm. On the last day of January, in Daly City, sunrise is at 7:14 am and sunset at 5:32 pm PST.

Sunshine

The average sunshine in January in Daly City is 5.9h.

UV index

The average daily maximum UV index in January in Daly City, California, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 4 in January, converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What is the temperature in January in Daly City?

The high-temperature, in January, in Daly City, is 56.1°F (13.4°C), while the low-temperature averages to 47.8°F (8.8°C).

What is the average humidity in January in Daly City?

The average relative humidity in January in Daly City is 74%.

How much does it rain in Daly City in January?

In January, in Daly City, California, the rain falls for 10.3 days. Throughout January, 2.28" (58mm) of precipitation is accumulated.

What is the average length of the day in January in Daly City?

The average day length in January in Daly City, California, is 9h and 55min.

When is the sunrise / sunset in January in Daly City?

On the first day of January in Daly City, California, sunrise is at 7:24 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:32 pm PST.

How long on average sun shines in January in Daly City?

In January, the average sunshine duration is 5.9h.

What is the UV index intensity in January in Daly City?

The average daily maximum UV index in January in Daly City, California, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Daly City, CA

Average temperature in January - Daly City, CA
  • Average high temperature in January: 56.1°F

The warmest month (with the highest average high temperature) is September (69.1°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in January: 47.8°F

The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is February (47.7°F).

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Average pressure in January
Daly City, CA

Average pressure in January - Daly City, 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 August and September (29.92"Hg).

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Average wind speed in January
Daly City, CA

Average wind speed in January - Daly City, CA
  • Average wind speed in January: 6.8mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).

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Average humidity in January
Daly City, CA

Average humidity in January - Daly City, CA
  • Average humidity in January: 74%

The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Daly City, CA

Average rainfall in January - Daly City, CA
  • Average rainfall in January: 2.28"

The wettest month (with the highest rainfall) is February (2.8").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in January
Daly City, CA

Average rainfall days in January - Daly City, CA
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (2.7 days).

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Average daylight in January /
Average sunshine in January
Daly City, CA

Average daylight in January / Average sunshine in January - Daly City, CA
  • Average daylight in January: 9h and 5min

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

  • Average sunshine in January: 5h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in January
Daly City, CA

Average sunshine days in January - Daly City, CA
  • Average sunshine days in January: 20 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (16.6 days).

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Average UV index in January
Daly City, CA

Average UV index in January - Daly City, CA
  • Average UV index in January: 4

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

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Average cloud cover in January
Daly City, CA

Average cloud cover in January - Daly City, CA
  • Average cloud cover in January: 34

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 18).

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Average visibility in January
Daly City, CA

Average visibility in January - Daly City, 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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Daly City, California, USA

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