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
San Marino's weather in January, with an average high-temperature of a still enjoyable 65.1°F (18.4°C), subtly shifts from December's 63.1°F (17.3°C). Throughout January, San Marino records an average temperature of 48.4°F (9.1°C) at night.Humidity
In San Marino, the average relative humidity in January is 51%.Rainfall
In San Marino, during January, the rain falls for 4.9 days and regularly aggregates up to 1.1" (28mm) of precipitation. In San Marino, California, during the entire year, the rain falls for 45 days and collects up to 6.61" (168mm) of precipitation.Daylight
In January, the average length of the day is 10h and 11min.On the first day of the month, sunrise is at 6:58 am and sunset at 4:53 pm. On the last day of January, in San Marino, sunrise is at 6:50 am and sunset at 5:21 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 6.9h of sunshine.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 of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 4 during January, leads to the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in San Marino?
What is the average humidity in January?
How much does it rain in January?
How many hours of daylight does San Marino have in January?
When is the sunrise / sunset in January in San Marino?
What are the months with the least sunshine?
How many hours of sunshine does San Marino have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
San Marino, CA
- Average high temperature in January: 65.1°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in January: 48.4°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is February (47.1°F).
Average pressure in January
San Marino, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
San Marino, CA
- Average wind speed in January: 5.3mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in January
San Marino, CA
- Average humidity in January: 51%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall in January
San Marino, CA
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
San Marino, CA
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is March (5.8 days).
The month with the least rainy days is June (1.2 days).
Average daylight in January /
Average sunshine in January
San Marino, 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 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in January
San Marino, CA
- Average sunshine days in January: 25.3 days
The month with the most sunshine days is June (27.1 days).
The month with the least sunshine days is February (22.3 days).
Average UV index in January
San Marino, 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
San Marino, CA
- Average cloud cover in January: 20
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
San Marino, 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).
San Marino, California, USA
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