Jacksonville
Florida, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Jacksonville, FL

Water geysers at the fountain of Jacksonville in Florida, with the cityscape
Water geysers at the fountain of Jacksonville in Florida, with the cityscape
January, like December, in Jacksonville, Florida, is another comfortable winter month, with average temperature ranging between max 64.8°F (18.2°C) and min 41.4°F (5.2°C).

Temperature

With an average high-temperature of 64.8°F (18.2°C) and an average low-temperature of 41.4°F (5.2°C), January is the coldest month.

Humidity

In January, the average relative humidity in Jacksonville is 74.9%.

Rainfall

In Jacksonville, during January, the rain falls for 8.3 days and regularly aggregates up to 3.3" (83.8mm) of precipitation. In Jacksonville, during the entire year, the rain falls for 113.5 days and collects up to 52.4" (1330.6mm) of precipitation.

Ocean temperature

January and February, with an average ocean temperature of 60.4°F (15.8°C), are months with the coldest seawater. For swimming, a surface water temperature of 60.4°F (15.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in Jacksonville, Florida, is 10.5h.

Sunshine

In January, the average sunshine is 6.1h.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the coldest month in Jacksonville?

January is the coldest month, with an average high-temperature of 64.8°F (18.2°C) and an average low-temperature of 41.4°F (5.2°C).

What is the temperature in January in Jacksonville?

In January, in Jacksonville, Florida, the average high-temperature is 64.8°F (18.2°C), and the average low-temperature is 41.4°F (5.2°C).

What is the average humidity in January in Jacksonville?

The average relative humidity in January in Jacksonville, Florida, is 74.9%.

How much does it rain in Jacksonville in January?

In Jacksonville, Florida, in January, it is raining for 8.3 days, with typically 3.3" (83.8mm) of accumulated precipitation.

What are the months with the coldest ocean in Jacksonville?

January and February, with an average ocean temperature of 60.4°F (15.8°C), are months with the coldest seawater in Jacksonville. For most, swimming in 60.4°F (15.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How cold is the water in January in Jacksonville?

In Jacksonville, Florida, in January, the average water temperature is 60.4°F (15.8°C). For most, swimming in 60.4°F (15.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does Jacksonville have in January?

In January, the average length of the day in Jacksonville is 10.5h.

How many hours of sunshine does Jacksonville have in January?

In January, the average sunshine in Jacksonville is 6.1h.

What are the months with the lowest UV index in Jacksonville?

Months with the lowest UV index are January and December, with an average maximum UV index of 4.

What is the UV index intensity in January in Jacksonville?

In January, the average daily maximum UV index in Jacksonville is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.
Average temperature in January - Jacksonville, FL
  • Average high temperature in January: 64.8°F

The warmest month (with the highest average high temperature) is July (92°F).
The month with the lowest average high temperature is January (64.8°F).

  • Average low temperature in January: 41.4°F

The month with the highest average low temperature is August (72.7°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).

Average humidity in January - Jacksonville, FL
  • Average humidity in January: 74.9%

The month with the highest relative humidity is September (80.8%).
The month with the lowest relative humidity is April (69.5%).

Average rainfall in January - Jacksonville, FL
  • Average rainfall in January: 3.3"

The wettest month (with the highest rainfall) is September (8.2").
The driest month (with the lowest rainfall) is November (2.1").

Average rainfall days in January - Jacksonville, FL
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is August (15 days).
The month with the lowest number of rainy days is April (5.7 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: 10.5h

The month with the longest days is June (Average daylight: 14.1h).
The month with shortest days is December (Average daylight: 10.2h).

  • Average sunshine in January: 6.1h

The month with most sunshine is May (Average sunshine: 9.8h).
The month with least sunshine is December (Average sunshine: 5.9h).

Average UV index in January - Jacksonville, FL
  • Average UV index in January: 4

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 4).