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 Luis marks the onset of January with an average high-temperature of a pleasant 69.3°F (20.7°C), a subtle shift from December's 67.1°F (19.5°C). San Luis experiences an average low-temperature of 51.1°F (10.6°C) in month of January.Humidity
In San Luis, the average relative humidity in January is 36%.Rainfall
In San Luis, Arizona, in January, during 2 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In San Luis, during the entire year, the rain falls for 25 days and collects up to 2.24" (57mm) of precipitation.Daylight
In San Luis, the average length of the day in January is 10h and 18min.On the first day of the month, sunrise is at 7:40 am and sunset at 5:44 pm. On the last day of January, sunrise is at 7:34 am and sunset at 6:10 pm MST.
Sunshine
In January, the average sunshine is 8h.UV index
In San Luis, the average daily maximum UV index in January is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during January translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
What is the average humidity in January?
How much does it rain in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
San Luis, AZ
- Average high temperature in January: 69.3°F
The warmest month (with the highest average high temperature) is July (106.2°F).
The month with the lowest average high temperature is December (67.1°F).
- Average low temperature in January: 51.1°F
The month with the highest average low temperature is August (86.2°F).
The coldest month (with the lowest average low temperature) is December (50.5°F).
Average pressure in January
San Luis, AZ
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).
Average wind speed in January
San Luis, AZ
- Average wind speed in January: 7.1mph
The windiest month (with the highest average wind speed) is July (8.5mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).
Average humidity in January
San Luis, AZ
- Average humidity in January: 36%
The month with the highest relative humidity is December (38%).
The month with the lowest relative humidity is June (23%).
Average rainfall in January
San Luis, AZ
- Average rainfall in January: 0.16"
The wettest month (with the highest rainfall) is July (0.39").
The driest month (with the least rainfall) is May (0").
Average rainfall days in January
San Luis, AZ
- Average rainfall days in January: 2 days
The month with the highest number of rainy days is July (5.1 days).
The month with the least rainy days is May (0.3 days).
Average daylight in January /
Average sunshine in January
San Luis, AZ
- 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 6min).
- Average sunshine in January: 8h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in January
San Luis, AZ
- Average sunshine days in January: 28.8 days
The month with the most sunshine days is May (30.4 days).
The month with the least sunshine days is July (24.3 days).
Average UV index in January
San Luis, AZ
- Average UV index in January: 5
The months with the highest UV index are June, July, August and September (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in January
San Luis, AZ
- Average cloud cover in January: 16
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in January
San Luis, AZ
- 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 Luis, Arizona, USA
Weather forecast for your location
2. Allow the app to use your location