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
With its high average temperature of 63.1°F (17.3°C) and a low of 47.8°F (8.8°C), January is regarded as the coldest month.Humidity
The average relative humidity in January is 72%.Rainfall
The month with the least rainfall is January, when the rain falls for 9.9 days and typically collects 1.1" (28mm) of precipitation.Snowfall
In Jacksonville, Florida, snow does not fall in January through November.Ocean temperature
The months with the coldest seawater are January and February, with an average ocean temperature of 60.4°F (15.8°C).Note: Most individuals do not find swimming at 60.4°F (15.8°C) to be enjoyable. As the water temperature declines below 69.8°F (21°C), maintaining control over one's breathing becomes harder.
Daylight
In January, the average length of the day in Jacksonville is 10h and 27min.On the first day of the month, sunrise is at 7:23 am and sunset at 5:36 pm. On the last day of January, sunrise is at 7:17 am and sunset at 6:02 pm EST.
Sunshine
In January, the average sunshine in Jacksonville is 6.1h.UV index
January is the month with the lowest UV index, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 4 suggests these recommendations:
Adopt protective measures - It is advised to guard against sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What are January temperatures?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
When it does not snow?
Does it snow in January?
What are the months with the coldest ocean?
What is the ocean temperature in January?
How many hours of daylight does Jacksonville have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Jacksonville have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Jacksonville, FL
- Average high temperature in January: 63.1°F
The warmest months (with the highest average high temperature) are July and August (91.4°F).
The month with the lowest average high temperature is January (63.1°F).
- Average low temperature in January: 47.8°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).
Average pressure in January
Jacksonville, FL
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in January
Jacksonville, FL
- Average wind speed in January: 6.5mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in January
Jacksonville, FL
- Average humidity in January: 72%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (69%).
Average rainfall in January
Jacksonville, FL
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in January
Jacksonville, FL
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (9 days).
Average snowfall days in January
Jacksonville, FL
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in January
Jacksonville, FL
- Average sea temperature in January: 60.5°F
The best month for swimming (with the highest average sea temperature) is August (83.5°F).
The coldest month (with the lowest average sea temperature) is February (60.4°F).
Average daylight in January /
Average sunshine in January
Jacksonville, FL
- Average daylight in January: 10h and 3min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in January: 6h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in January
Jacksonville, FL
- Average sunshine days in January: 18.8 days
The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in January
Jacksonville, FL
- Average UV index in January: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in January
Jacksonville, FL
- Average cloud cover in January: 35
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in January
Jacksonville, FL
- 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).
Jacksonville, Florida, USA
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