Jacksonville weather in December
December in Jacksonville: nice, a little rain, with clean air — an excellent time to visit.
#7 of 12 months in Jacksonville · #261 of 897 destinations to visit in December · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Jacksonville in December
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Jacksonville climate normals — December
| Daytime high | 20°C / 68°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 53°F | |
| Rainfall | 70 mm / 2.8 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 10°C / 51°F | |
| Sunshine | 7.2 h/day | |
| Daylight | 10.2 h | |
| Wind | 15 km/h / 10 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Jacksonville in December — FAQ
- Is December a good time to visit Jacksonville?
- December in Jacksonville: nice, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Jacksonville on SeasonMap's comfort score (81/100).
- What is the weather like in Jacksonville in December?
- In December, Jacksonville averages a daily high of 19.8°C and a low of 11.8°C, with about 70 mm of rain over roughly 6.8 rainy days.
- What is the air quality in Jacksonville in December?
- Jacksonville has a mean US Air Quality Index of about 37 in December.