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
The onset of January manifests an average high-temperature of a still enjoyable 65.1°F (18.4°C), demonstrating a minor variation from the preceding month. San Marino throughout January, experiences an average nighttime temperature of 48.4°F (9.1°C).Humidity
In January, the average relative humidity is 51%.Rainfall
In San Marino, in January, it is raining for 4.9 days, with typically 1.1" (28mm) of accumulated 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
The average length of the day in January 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, sunrise is at 6:50 am and sunset at 5:21 pm PST.
Sunshine
January, February and December, with an average of 6.9h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in San Marino are January, February, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in January translates into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the usual temperature for San Marino in January?
What is the average humidity in January in San Marino?
How many days does it rain in January in San Marino?
How many hours of daylight does San Marino have in January?
When are sunrise and sunset in January in San Marino?
What are the months with the least sunshine in San Marino?
How long on average sun shines in January in San Marino?
When is the lowest UV index in San Marino?
What is the UV index intensity in January in San Marino?
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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