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Jacksonville Weather in January

With daytime temperatures of 18°C (64°F) and nighttime lows of 5°C (41°F), January in Jacksonville brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 84 mm (3.3 in) falls on average.

Rainfall in Jacksonville in January

You can typically expect 10 days of rain this month, averaging around 84 mm (3.3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Jacksonville in January

If you're visiting Jacksonville in January, expect highs of 18°C (64°F) and overnight lows around 5°C (41°F). Winter occurs in January. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 5°C (41°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. The weather this month is milder than usual, but still provides a warm and pleasant atmosphere.

Sunshine in Jacksonville in January

The month brings about 188 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Jacksonville in January

Wind speeds average 4 m/s (8 knots) during January. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in January

The water temperature is 18°C (64°F). It's not warm, but most people find it perfectly fine for a swim once they're in.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, April, October, November and December typically offer the best weather for Jacksonville.

Jacksonville Temperature in January

Min Temperature
5°C (41°F)
Max Temperature
18°C (64°F)
Water Temperature
18°C (64°F)
Chance of Rain
33%
Precipitation
84 mm (3.3 in)
Rainy days
10 days
Humidity
65%
Windspeed
4 m/s (8 knots)
Sunshine
188 hours
Percentage Sunshine
59%

Jacksonville Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Jacksonville - and find the best time to visit.

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Jacksonville typically stay consistent throughout January, with daily highs averaging around 18°C (64°F). Nights are cold, with lows typically ranging from 4°C (39°F) to 9°C (48°F).

Average temperatures in January

Daily Historical Precipitation

51-year average (1976-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

Historical weather records for Jacksonville in January

Browse day-by-day weather records for Jacksonville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Jacksonville historical weather extremes in January

Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Jacksonville.

  • On January 30, 2023, temperatures climbed to 30°C (86°F), marking the warmest January day on record.

Best Places in the United States of America in January

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Jacksonville in January

Comfortable temperatures call for an easy wardrobe in January. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 18°C (64°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Jacksonville in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    6/10
  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Jacksonville 3-Day Forecast

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.