Jacksonville, FL Climate & Monthly Averages
The climate of Jacksonville
Jacksonville records 149 wet days and 9.6 hours of daily sunshine in an average year. Temperatures follow a humid subtropical pattern, running 64°F (18°C) in January up to 89°F (32°C) in July.
Climate quick facts
- Hottest month: July - highs near 89°F (32°C)
- Coldest month: January - highs near 64°F (18°C)
- Decade extremes (2015-2024): 103°F (39°C) high · 24°F (-4°C) low
- Wettest month: August (24 rainy days) · Sunniest: May (11.6 h sun/day)
- Climate type: humid subtropical
- Annual swing: 15°C between the average warmest and coolest month · day to night: 8°C
- Months averaging 30°C or hotter: 3
- Average humidity: 78%
Temperatures through the year
At its warmest, in July, Jacksonville runs to 89°F (32°C) in the afternoon and back to 76°F (24°C) by dawn. January bottoms out at 64°F (18°C) in daylight, 48°F (9°C) after dark. Precipitation concentrates in August - 7.6 inches (192 mm) on 24 days - and thins out by November.
Rain, sun and snow
Average highs hold at or above 30°C for 3 months of the year, June through August being the unbroken run. Six of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is February through April. May is the brightest month at 11.6 hours of sun a day, against an annual average of 9.6. The gridded 2015-2024 daily record for this location tops out at 103°F (39°C) and bottoms at 24°F (-4°C) - decade extremes, not all-time station records.
How Jacksonville compares
- Jacksonville sits close to the middle of our dataset on most measures: 70°F (21°C) as an annual average, 50.7 inches (1288 mm) of precipitation and 9.6 hours of sun a day.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 64° | 48° | 7 | 2.5 in | 7.8 h/day | 10.4 h | 24% | 76% |
| February | 69° | 52° | 8 | 3.0 in | 8.4 h/day | 11.1 h | 29% | 78% |
| March | 74° | 57° | 8 | 2.8 in | 9.5 h/day | 11.9 h | 26% | 73% |
| April | 79° | 62° | 8 | 3.0 in | 10.7 h/day | 12.9 h | 28% | 72% |
| May | 84° | 68° | 10 | 3.2 in | 11.6 h/day | 13.7 h | 31% | 73% |
| June | 88° | 74° | 19 | 6.3 in | 11.1 h/day | 14.1 h | 64% | 78% |
| July | 89° | 76° | 22 | 6.6 in | 11.2 h/day | 13.9 h | 70% | 80% |
| August | 88° | 76° | 24 | 7.6 in | 10.6 h/day | 13.2 h | 78% | 83% |
| September | 85° | 73° | 17 | 7.4 in | 9.5 h/day | 12.3 h | 58% | 82% |
| October | 79° | 66° | 10 | 3.6 in | 9.4 h/day | 11.4 h | 31% | 79% |
| November | 72° | 58° | 8 | 2.4 in | 8.1 h/day | 10.6 h | 28% | 80% |
| December | 68° | 53° | 7 | 2.5 in | 7.5 h/day | 10.2 h | 21% | 81% |
Jacksonville month by month
Average high and low for each month, with the bar showing where it sits in Jacksonville's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 7 days
- Sunshine
- 7.8 h
- Daylight
- 10.4 h
February
- Rain
- 8 days
- Sunshine
- 8.4 h
- Daylight
- 11.1 h
March
- Rain
- 8 days
- Sunshine
- 9.5 h
- Daylight
- 11.9 h
April
- Rain
- 8 days
- Sunshine
- 10.7 h
- Daylight
- 12.9 h
May
- Rain
- 10 days
- Sunshine
- 11.6 h
- Daylight
- 13.7 h
June
- Rain
- 19 days
- Sunshine
- 11.1 h
- Daylight
- 14.1 h
July
- Rain
- 22 days
- Sunshine
- 11.2 h
- Daylight
- 13.9 h
August
- Rain
- 24 days
- Sunshine
- 10.6 h
- Daylight
- 13.2 h
September
- Rain
- 17 days
- Sunshine
- 9.5 h
- Daylight
- 12.3 h
October
- Rain
- 10 days
- Sunshine
- 9.4 h
- Daylight
- 11.4 h
November
- Rain
- 8 days
- Sunshine
- 8.1 h
- Daylight
- 10.6 h
December
- Rain
- 7 days
- Sunshine
- 7.5 h
- Daylight
- 10.2 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Jacksonville
Spring (March through May)
Through spring, Jacksonville brings comfortable warmth: 79°F (26°C) by day, 62°F (17°C) after dark, and expect showers on roughly 26 days across the season. Daylight is generous - around 10.6 hours of sun a day.
Summer (June through August)
Through summer, Jacksonville runs hot: 88°F (31°C) by day, 75°F (24°C) after dark, and rain falls on around 65 of the 90 days. Daylight is generous - around 11.0 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Fall settles into easy warmth here - highs near 79°F (26°C), nights near 66°F (19°C), and rain falls on around 35 of the 90 days.
Winter (December through February)
Winter stays on the cool side of mild here - highs near 67°F (19°C), nights near 51°F (11°C), and expect showers on roughly 22 days across the season.
Climate questions, answered
What should I wear in Jacksonville?
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How long does summer last in Jacksonville?
Is Jacksonville cold in winter?
How sunny is Jacksonville?
Best time to visit Jacksonville
January to May and October is the sweet spot for Jacksonville - warm days, manageable rainfall and plenty of daylight line up. Expect 75°F (24°C) in the afternoon and around 9 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in January.
Pack for Jacksonville with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. July nights average 76°F (24°C), so evenings rarely match the afternoons.
Jacksonville temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.