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
Rancho Santa Fe observes an average high-temperature of a still enjoyable 63.7°F (17.6°C) in January, barely different from 63°F (17.2°C) in December. Rancho Santa Fe observes an average nighttime low-temperature of 53.1°F (11.7°C) during the month of January.Humidity
The average relative humidity in January is 61%.Rainfall
In Rancho Santa Fe, in January, during 4.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Rancho Santa Fe, during the entire year, the rain falls for 55.7 days and collects up to 5.75" (146mm) of precipitation.Daylight
In Rancho Santa Fe, the average length of the day in January is 10h and 16min.On the first day of January, sunrise is at 6:51 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 5:19 pm PST.
Sunshine
In January, the average sunshine is 6.8h.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during January leads to these advisories:
Make use of precautions - Suggestions to resist sunburn are communicated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January?
How many days does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Rancho Santa Fe have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Rancho Santa Fe, CA
- Average high temperature in January: 63.7°F
The warmest month (with the highest average high temperature) is September (76.6°F).
The months with the lowest average high temperature are February and December (63°F).
- Average low temperature in January: 53.1°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (51.8°F).
Average pressure in January
Rancho Santa Fe, CA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in January
Rancho Santa Fe, CA
- Average wind speed in January: 5.4mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is October (5.2mph).
Average humidity in January
Rancho Santa Fe, CA
- Average humidity in January: 61%
The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (60%).
Average rainfall in January
Rancho Santa Fe, CA
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is December (1.06").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in January
Rancho Santa Fe, CA
- Average rainfall days in January: 4.4 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is August (2.8 days).
Average daylight in January /
Average sunshine in January
Rancho Santa Fe, CA
- Average daylight in January: 10h and 2min
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 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Rancho Santa Fe, CA
- Average sunshine days in January: 24.8 days
The month with the most sunshine days is October (25.9 days).
The month with the least sunshine days is February (21 days).
Average UV index in January
Rancho Santa Fe, CA
- Average UV index in January: 4
The months with the highest UV index are July and August (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
Rancho Santa Fe, CA
- Average cloud cover in January: 21
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in January
Rancho Santa Fe, 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).
Rancho Santa Fe, California, USA
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