January weather forecastBolinas, CA
January
Weather in January
January in Bolinas, California, is a mild winter month, with an average temperature fluctuating between 55.9°F (13.3°C) and 46.6°F (8.1°C).Temperature
January is marked by an average high-temperature of a mild 55.9°F (13.3°C), almost identical to the preceding month. During the nights in January, Bolinas experiences a consistent average temperature of 46.6°F (8.1°C).Humidity
In Bolinas, California, the average relative humidity in January is 74%.Rainfall
In Bolinas, in January, during 10.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, there are 80.3 rainfall days, and 15.98" (406mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.Ocean temperature
In Bolinas, the average seawater temperature in January is 53.2°F (11.8°C).Note: Beware when you're in 53.2°F (11.8°C) waters; 55.4°F (13°C) is chilling and anything below 50°F (10°C) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
In January, the average length of the day is 9h and 53min.On the first day of the month, sunrise is at 7:26 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:32 pm PST.
Sunshine
In January, the average sunshine is 5.7h.UV index
In Bolinas, the average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a medium health hazard 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:
Adopt protective measures - It is advised to guard against sun damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Bolinas, CA
- Average high temperature in January: 55.9°F
The warmest month (with the highest average high temperature) is September (70.9°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in January: 46.6°F
The month with the highest average low temperature is September (56.3°F).
The coldest month (with the lowest average low temperature) is December (46°F).
Average pressure in January
Bolinas, 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).
Average wind speed in January
Bolinas, CA
- Average wind speed in January: 6.5mph
The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).
Average humidity in January
Bolinas, CA
- Average humidity in January: 74%
The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in January
Bolinas, CA
- Average rainfall in January: 2.64"
The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in January
Bolinas, 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 (2.3 days).
Average snowfall days in January
Bolinas, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in January
Bolinas, CA
- Average sea temperature in January: 53.3°F
The best month for swimming (with the highest average sea temperature) is September (56.9°F).
The coldest month (with the lowest average sea temperature) is June (52.4°F).
Average daylight in January /
Average sunshine in January
Bolinas, CA
- Average daylight in January: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 5h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in January
Bolinas, CA
- Average sunshine days in January: 20.1 days
The months with the most sunshine days are June and July (24.8 days).
The month with the least sunshine days is March (16.6 days).
Average UV index in January
Bolinas, 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).
Average cloud cover in January
Bolinas, CA
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in January
Bolinas, 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).
