January weather forecastPort San Luis, CA
January
Weather in January
January is a refreshing winter month in Port San Luis, California, with an average temperature fluctuating between 62.4°F (16.9°C) and 46.9°F (8.3°C).Temperature
In January, Port San Luis's weather conditions record an average high-temperature of a still refreshing 62.4°F (16.9°C), demonstrating little divergence from the preceding month. In the month of January, the average temperature in Port San Luis dips to a chilly 46.9°F (8.3°C) during the night.Humidity
The average relative humidity in January is 63%.Rainfall
In Port San Luis, California, in January, it is raining for 6.9 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, in Port San Luis, there are 57 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Daylight
In Port San Luis, the average length of the day in January is 10h and 7min.On the first day of the month, sunrise is at 7:11 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:02 am and sunset at 5:30 pm PST.
Sunshine
In Port San Luis, the average sunshine in January is 6.7h.UV index
In January, the average daily maximum UV index in Port San Luis is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 4 during January morphs into the following directions:
Adopt protective measures - It is advised to guard against sun damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Port San Luis, CA
- Average high temperature in January: 62.4°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (60.3°F).
- Average low temperature in January: 46.9°F
The month with the highest average low temperature is September (60.3°F).
The coldest month (with the lowest average low temperature) is February (45.7°F).
Average pressure in January
Port San Luis, CA
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in January
Port San Luis, CA
- Average wind speed in January: 6mph
The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).
Average humidity in January
Port San Luis, CA
- Average humidity in January: 63%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are September and October (57%).
Average rainfall in January
Port San Luis, CA
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is March (2.01").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in January
Port San Luis, CA
- Average rainfall days in January: 6.9 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.6 days).
Average daylight in January /
Average sunshine in January
Port San Luis, CA
- Average daylight in January: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 6h and 42min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in January
Port San Luis, CA
- Average sunshine days in January: 22.8 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is February (19.1 days).
Average UV index in January
Port San Luis, CA
- Average UV index in January: 4
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is February (UV index 3).
Average cloud cover in January
Port San Luis, CA
- Average cloud cover in January: 24
The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 6).
Average visibility in January
Port San Luis, 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).
