Jacksonville weather in January
January in Jacksonville: nice, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Jacksonville · #235 of 897 destinations to visit in January · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Jacksonville in January
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Jacksonville climate normals — January
| Daytime high | 19°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 50°F | |
| Rainfall | 39 mm / 1.6 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 8°C / 47°F | |
| Sunshine | 7.8 h/day | |
| Daylight | 10.4 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Jacksonville in January — FAQ
- Is January a good time to visit Jacksonville?
- January in Jacksonville: nice, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Jacksonville on SeasonMap's comfort score (83/100).
- What is the weather like in Jacksonville in January?
- In January, Jacksonville averages a daily high of 18.6°C and a low of 10.1°C, with about 39.4 mm of rain over roughly 6.2 rainy days.
- What is the air quality in Jacksonville in January?
- Jacksonville has a mean US Air Quality Index of about 40 in January.