Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Surfside observes a minor difference in average high-temperatures between December's 62.8°F (17.1°C) and January's 64.6°F (18.1°C). An average low-temperature of 53.6°F (12°C) is observed during the January nights.Humidity
In January, the average relative humidity in Surfside is 59%.Rainfall
In Surfside, California, in January, it is raining for 5.2 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, in Surfside, there are 57.8 rainfall days, and 8.82" (224mm) of precipitation is accumulated.Daylight
In Surfside, California, the average length of the day in January is 10h and 13min.On the first day of January, sunrise is at 6:56 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 5:21 pm PST.
Sunshine
In January, the average sunshine is 6.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in January converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures in Surfside?
What is the average humidity in January in Surfside?
How much does it rain in Surfside in January?
How many hours of daylight does Surfside have in January?
When is the sunrise / sunset in January in Surfside?
How long on average sun shines in January in Surfside?
When is the lowest UV index in Surfside?
How high is the UV index in January in Surfside?
Average temperature in January
Surfside, CA
- Average high temperature in January: 64.6°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (62.8°F).
- Average low temperature in January: 53.6°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (52.7°F).
Average pressure in January
Surfside, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in January
Surfside, CA
- Average wind speed in January: 5.6mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.3mph).
Average humidity in January
Surfside, CA
- Average humidity in January: 59%
The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (57%).
Average rainfall in January
Surfside, CA
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Surfside, CA
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is March (8.1 days).
The months with the least rainy days are June and August (2.3 days).
Average daylight in January /
Average sunshine in January
Surfside, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 6h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in January
Surfside, CA
- Average sunshine days in January: 24.2 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (19.3 days).
Average UV index in January
Surfside, 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).
Average cloud cover in January
Surfside, CA
- Average cloud cover in January: 21
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in January
Surfside, 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).
Surfside, California, USA
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