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
The dawn of January sees an average high-temperature of a still refreshing 64.2°F (17.9°C), subtly contrasting with December's 62.6°F (17°C). During January, the temperature is averaged to a low of 50.9°F (10.5°C) at night.Humidity
In San Clemente, the average relative humidity in January is 62%.Rainfall
In San Clemente, during January, the rain falls for 4.8 days and regularly aggregates up to 0.35" (9mm) of precipitation. In San Clemente, during the entire year, the rain falls for 51.1 days and collects up to 3.66" (93mm) of precipitation.Ocean temperature
In San Clemente, in January, the average water temperature is 59°F (15°C).Note: Swimming in 59°F (15°C) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in January is 10h and 14min.On the first day of January, sunrise is at 6:54 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 5:20 pm PST.
Sunshine
In January, the average sunshine is 6.7h.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 of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the UV index of 4 transforms into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Clemente in January?
What is the average humidity in January?
How many days does it rain in January?
What is the ocean temperature in January?
How many hours of daylight does San Clemente have in January?
When are sunrise and sunset in January in San Clemente?
How many hours of sunshine does San Clemente have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
San Clemente, CA
- Average high temperature in January: 64.2°F
The warmest month (with the highest average high temperature) is September (77.4°F).
The month with the lowest average high temperature is December (62.6°F).
- Average low temperature in January: 50.9°F
The months with the highest average low temperature are August and September (63.5°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).
Average pressure in January
San Clemente, CA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
San Clemente, CA
- Average wind speed in January: 5.2mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (4.9mph).
Average humidity in January
San Clemente, CA
- Average humidity in January: 62%
The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (60%).
Average rainfall in January
San Clemente, CA
- Average rainfall in January: 0.35"
The wettest month (with the highest rainfall) is December (0.71").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in January
San Clemente, CA
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.4 days).
Average sea temperature in January
San Clemente, CA
- Average sea temperature in January: 58.9°F
The best month for swimming (with the highest average sea temperature) is August (68.3°F).
The coldest months (with the lowest average sea temperature) are January and February (58.9°F).
Average daylight in January /
Average sunshine in January
San Clemente, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 6h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in January
San Clemente, CA
- Average sunshine days in January: 24.8 days
The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in January
San Clemente, CA
- Average UV index in January: 4
The months with the highest UV index are 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
San Clemente, CA
- Average cloud cover in January: 24
The months with the most cloud cover are March and May (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in January
San Clemente, 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 Clemente, California, USA
Weather forecast for your location
2. Allow the app to use your location