Jacksonville, Florida weather in January

Averages from 2021–2025 (155 days of record).

Average high: 64°F
Average low: 46°F
Rainy days: ~7 per month
Total precipitation: 2.7 in
Warmest recorded: 81°F
Coldest recorded: 29°F

Expect January days in Jacksonville, Florida to top out around 64°F and cool to about 46°F overnight, with roughly 7 days of measurable rain across the month. In recent years January has ranged from 29°F to 81°F.

Other months

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Current Jacksonville, Florida forecast → · Historical data by Open-Meteo (ERA5).