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 snowfall 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
January, with average temperatures reaching a high of 59.7°F (15.4°C) and a low of 51.6°F (10.9°C), is the coldest month.Humidity
In January, the average relative humidity is 77%.Rainfall
In Galveston, during January, the rain falls for 10.1 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 161.9 rainfall days, and 24.33" (618mm) of precipitation is accumulated.Snowfall
January and February are months with snowfall. January has the most snowfall days of the year. Snow falls for 0.3 days.Ocean temperature
The month with the coldest seawater is January, with an average ocean temperature of 56.5°F (13.6°C).Note: In 56.5°F (13.6°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).
Daylight
In January, the average length of the day is 10h and 31min.On the first day of January, sunrise is at 7:13 am and sunset at 5:31 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:56 pm CST.
Sunshine
In January, the average sunshine is 5.4h.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in January converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
When does it snow the most?
When does it start snowing?
What is the month with the coldest ocean?
How cold is the water in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Galveston, TX
- Average high temperature in January: 59.7°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (59.7°F).
- Average low temperature in January: 51.6°F
The month with the highest average low temperature is August (81.9°F).
The coldest month (with the lowest average low temperature) is January (51.6°F).
Average pressure in January
Galveston, TX
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Galveston, TX
- Average wind speed in January: 12mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity in January
Galveston, TX
- Average humidity in January: 77%
The months with the highest relative humidity are February and March (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Galveston, TX
- Average rainfall in January: 1.22"
The wettest month (with the highest rainfall) is September (4.29").
The driest months (with the least rainfall) are February and March (0.75").
Average rainfall days in January
Galveston, TX
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is January (10.1 days).
Average snowfall days in January
Galveston, TX
- Average snowfall days in January: 0.3 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in January
Galveston, TX
- Average sea temperature in January: 56.5°F
The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (56.5°F).
Average daylight in January /
Average sunshine in January
Galveston, TX
- Average daylight in January: 10h and 3min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in January
Galveston, TX
- Average sunshine days in January: 18.2 days
The month with the most sunshine days is January (18.2 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in January
Galveston, TX
- Average UV index in January: 4
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in January
Galveston, TX
- Average cloud cover in January: 40
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, July, August and October (Cloud cover 26).
Average visibility in January
Galveston, TX
- 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).
Galveston, Texas, USA
Weather forecast for your location
2. Allow the app to use your location