Jacksonville weather in May
May in Jacksonville: hot, a little rain — a great time to visit.
#8 of 12 months in Jacksonville · #593 of 897 destinations to visit in May · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Jacksonville in May
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Jacksonville climate normals — May
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 20°C / 68°F | |
| Rainfall | 67 mm / 2.6 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 18°C / 65°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 13.7 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Jacksonville in May — FAQ
- Is May a good time to visit Jacksonville?
- May in Jacksonville: hot, a little rain — a great time to visit. It ranks #8 of 12 months for Jacksonville on SeasonMap's comfort score (78/100).
- What is the weather like in Jacksonville in May?
- In May, Jacksonville averages a daily high of 29.1°C and a low of 20°C, with about 66.6 mm of rain over roughly 10 rainy days.
- What is the air quality in Jacksonville in May?
- Jacksonville has a mean US Air Quality Index of about 51 in May.