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 sea temperature 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
Santa Monica experiences a minor change to a still enjoyable 65.5°F (18.6°C) in average high-temperature during January, closely reflecting December. An average low-temperature of 51.4°F (10.8°C) marks the month of January.Humidity
The average relative humidity in January in Santa Monica is 55%.Rainfall
January is the month with the most rainfall in Santa Monica. Rain falls for 5.4 days and accumulates 1.54" (39mm) of precipitation.Ocean temperature
January through May and December, with an average ocean temperature of 59°F (15°C), are months with the coldest seawater.Note: Most people do not find pleasure in swimming when the water temperature is 59°F (15°C). Breathing becomes increasingly difficult to manage as the water temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Santa Monica, the average length of the day in January is 10h and 11min.On the first day of January, sunrise is at 6:59 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 5:23 pm PST.
Sunshine
The average sunshine in January in Santa Monica, California, is 6.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: During January, 4 as the daily maximum UV index converts into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the temperature in January in Santa Monica?
What is the average humidity in January in Santa Monica?
What is the rainiest month in Santa Monica?
How many days does it rain in January in Santa Monica?
What are the months with the coldest ocean in Santa Monica?
What is the ocean temperature in January in Santa Monica?
How many hours of daylight does Santa Monica have in January?
What time are sunrise and sunset in January in Santa Monica?
How long on average sun shines in January in Santa Monica?
When is the lowest UV index in Santa Monica?
What is the UV index reading in January in Santa Monica?
Average temperature in January
Santa Monica, CA
- Average high temperature in January: 65.5°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in January: 51.4°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in January
Santa Monica, 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 (29.9"Hg).
Average wind speed in January
Santa Monica, CA
- Average wind speed in January: 5.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in January
Santa Monica, CA
- Average humidity in January: 55%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (52%).
Average rainfall in January
Santa Monica, CA
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is January (1.54").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in January
Santa Monica, CA
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.8 days).
Average sea temperature in January
Santa Monica, CA
- Average sea temperature in January: 59°F
The best months for swimming (with the highest average sea temperature) are August, September and October (66°F).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May and December (59°F).
Average daylight in January /
Average sunshine in January
Santa Monica, 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: 9h and 54min).
- Average sunshine in January: 6h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days in January
Santa Monica, CA
- Average sunshine days in January: 24.7 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in January
Santa Monica, CA
- Average UV index in January: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in January
Santa Monica, CA
- Average cloud cover in January: 22
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 8).
Average visibility in January
Santa Monica, 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).
Santa Monica, California, USA
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