January weather forecastIsla Vista, CA
January
Weather in January
January in Isla Vista, California, is a refreshing winter month, with an average temperature fluctuating between 48.7°F (9.3°C) and 62.2°F (16.8°C).Temperature
Isla Vista, California, registers an average high-temperature of a still refreshing 62.2°F (16.8°C) at the commencement of January, closely related to the preceding month. An average low-temperature of 48.7°F (9.3°C) is noted during the nights in January.Humidity
In Isla Vista, California, the average relative humidity in January is 59%.Rainfall
January is the month with the most rainfall. Rain falls for 5.3 days and accumulates 1.57" (40mm) of precipitation.Ocean temperature
In January, the average ocean temperature is 56.8°F (13.8°C).Note: Swimming in 56.8°F (13.8°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Isla Vista, the average length of the day in January is 10h and 10min.On the first day of January, sunrise is at 7:05 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 5:27 pm PST.
Sunshine
The average sunshine in January 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 estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during January leads to these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Isla Vista, CA
- Average high temperature in January: 62.2°F
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (60.6°F).
- Average low temperature in January: 48.7°F
The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is February (47.7°F).
Average pressure in January
Isla Vista, CA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in January
Isla Vista, CA
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in January
Isla Vista, CA
- Average humidity in January: 59%
The month with the highest relative humidity is March (64%).
The months with the lowest relative humidity are September, October and November (56%).
Average rainfall in January
Isla Vista, CA
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is January (1.57").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in January
Isla Vista, CA
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.2 days).
Average sea temperature in January
Isla Vista, CA
- Average sea temperature in January: 56.8°F
The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is April (55.7°F).
Average daylight in January /
Average sunshine in January
Isla Vista, CA
- Average daylight in January: 10h and 12min
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 48min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in January
Isla Vista, CA
- Average sunshine days in January: 24.9 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in January
Isla Vista, 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, March, November and December (UV index 4).
Average cloud cover in January
Isla Vista, CA
- Average cloud cover in January: 21
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Isla Vista, 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).
