Climate averages 1991–2020
Jacksonville weather
in May.
A hot, moderately wet month: the joint 4th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Jacksonville: daytime highs average 29.0°C and nights cool to about 19.6°C. By daytime temperature it is the joint 4th warmest of the 12 months.
Expect about 66 mm of rain on roughly 9 days, which makes May a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 40 min on an average May day.
The nearest other city in this atlas is Palm Coast (94 km away). In May its highs average 28.3°C, 0.7°C cooler than Jacksonville, with 68 mm of rain.
Among the 498 cities listed in the United States, Jacksonville ranks joint 55th of 498 for the warmest May highs and 173rd of 498 for the driest May (rainfall, lowest first). The mean May high of those 498 cities is 23.8°C; Jacksonville is 5.2°C warmer than that mean.
From May to June, average highs rise by 1.8°C to 30.7°C, and monthly rainfall rises from 66 mm to 131 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jacksonville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.3°C8.8°C | 8.8°C | 66 | 7.3 | 10.410 h |
| February | 19.2°C10.3°C | 10.3°C | 63 | 6.9 | 11.111 h |
| March | 22.2°C12.6°C | 12.6°C | 76 | 7.5 | 12.012 h |
| April | 25.6°C15.9°C | 15.9°C | 58 | 6.9 | 12.913 h |
| May, selected | 29.0°C19.6°C | 19.6°C | 66 | 8.9 | 13.714 h |
| June | 30.7°C22.9°C | 22.9°C | 131 | 18.9 | 14.114 h |
| July | 31.7°C24.1°C | 24.1°C | 125 | 20.4 | 13.914 h |
| August | 30.9°C24.1°C | 24.1°C | 141 | 21.6 | 13.213 h |
| September | 29.0°C22.8°C | 22.8°C | 121 | 15.8 | 12.412 h |
| October | 25.7°C18.7°C | 18.7°C | 70 | 9.2 | 11.511 h |
| November | 21.6°C13.7°C | 13.7°C | 42 | 6.0 | 10.711 h |
| December | 18.6°C10.6°C | 10.6°C | 58 | 6.5 | 10.210 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Palm Coast in MayUnited States · 94 kmHigh 28.3°C · Low 21.0°C · 68 mm rain
- Gainesville in MayUnited States · 99 kmHigh 30.1°C · Low 19.1°C · 70 mm rain
- Daytona Beach in MayUnited States · 139 kmHigh 29.0°C · Low 20.7°C · 67 mm rain
- Deltona in MayUnited States · 164 kmHigh 29.8°C · Low 20.3°C · 81 mm rain
- Alafaya in MayUnited States · 201 kmHigh 29.6°C · Low 20.2°C · 73 mm rain
- Orlando in MayUnited States · 201 kmHigh 30.0°C · Low 19.9°C · 69 mm rain
- Savannah in MayUnited States · 202 kmHigh 27.7°C · Low 18.8°C · 59 mm rain
- Spring Hill in MayUnited States · 223 kmHigh 30.1°C · Low 20.3°C · 73 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Jacksonville) is explained once on the Jacksonville year overview and on the Sources, method and limits page.