Jacksonville climate
Jacksonville (Florida, United States) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 21 °C69 °F, and about 1,285 mm51 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Jacksonville climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1763 | 542 | 1152 | 732.9 | 6 |
| Feb | 2067 | 745 | 1456 | 823.2 | 2 |
| Mar | 2373 | 1051 | 1762 | 823.2 | 1 |
| Apr | 2781 | 1458 | 2169 | 763.0 | 0 |
| May | 3188 | 1865 | 2576 | 903.6 | 0 |
| Jun | 3290 | 2272 | 2781 | 1877.4 | 0 |
| Jul | 3290 | 2373 | 2882 | 1586.2 | 0 |
| Aug | 3290 | 2373 | 2882 | 1766.9 | 0 |
| Sep | 3086 | 2170 | 2678 | 1475.8 | 0 |
| Oct | 2780 | 1661 | 2271 | 823.2 | 0 |
| Nov | 2272 | 1151 | 1762 | 532.1 | 0 |
| Dec | 1967 | 846 | 1456 | 803.2 | 2 |
| Year | 3290 | 542 | 2169 | 1,28551 | 11 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 80% | 64% | 3.1 | 10:23 |
| Feb | 80% | 62% | 3.7 | 11:04 |
| Mar | 76% | 51% | 5.0 | 11:55 |
| Apr | 71% | 46% | 6.1 | 12:52 |
| May | 68% | 45% | 6.5 | 13:40 |
| Jun | 76% | 57% | 6.1 | 14:05 |
| Jul | 79% | 57% | 6.1 | 13:55 |
| Aug | 81% | 58% | 5.6 | 13:14 |
| Sep | 81% | 59% | 4.9 | 12:18 |
| Oct | 80% | 51% | 4.2 | 11:22 |
| Nov | 79% | 56% | 3.4 | 10:35 |
| Dec | 82% | 66% | 2.8 | 10:12 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Jacksonville is like
The warmest month is July, with an average high of 32 °C90 °F and a low of 23 °C73 °F. The coldest is January, when highs average 17 °C63 °F and lows 5 °C42 °F. There is a clear seasonal cycle, with 16.4 °C29.4 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,285 mm51 in of precipitation per year. The wettest three-month stretch is June–August, which brings 41% of the annual total. The wettest month is June (187 mm7.4 in), the driest is November (53 mm2.1 in).
Relative humidity ranges from 68% in May to 82% in December. The clearest skies (lowest average cloud amount, 45%) are typical of May. Average wind speed near the ground ranges from 2 km/h (1 mph) in July to 2 km/h (2 mph) in April. Daylight lasts from about 10.2 hours in December to 14.1 hours in June.
Best time to visit Jacksonville
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and November: average highs of 22 °C72 °F to 27 °C81 °F with 53 mm2.1 in to 82 mm3.2 in of precipitation per month.
The most challenging month is August, which is hot, with average highs of 32 °C90 °F, very wet (176 mm6.9 in) and humid (81% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Jacksonville
- Winter (December–February) — highs 1763 to 20 °C67 °F, lows 542 to 8 °C46 °F, about 78 mm3.1 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2373 to 31 °C88 °F, lows 1051 to 18 °C65 °F, about 83 mm3.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs around 32 °C90 °F, lows 2272 to 23 °C73 °F, about 174 mm6.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 2272 to 30 °C86 °F, lows 1151 to 21 °C70 °F, about 94 mm3.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
How Jacksonville compares
Of the 222 places in the United States covered by World Climates, Jacksonville is the 27th warmest by annual mean temperature and the 37th wettest by annual precipitation. See all of them on the United States climate page.
Places in other countries with the most similar temperature and rainfall pattern: Putian (China, Cfa), Fuzhou (China, Cfa) and Longyan (China, Cfa).
Nearby places
- Gainesville 99 km · 21 °C69 °F · 1,316 mm52 in
- Daytona Beach 139 km · 22 °C72 °F · 1,310 mm52 in
- Orlando 201 km · 22 °C72 °F · 1,301 mm51 in
- Savannah 202 km · 20 °C68 °F · 1,152 mm45 in
- Tallahassee 252 km · 20 °C67 °F · 1,350 mm53 in
- Lakeland 257 km · 22 °C72 °F · 1,267 mm50 in
- Palm Bay 276 km · 23 °C74 °F · 1,377 mm54 in
- Tampa 276 km · 23 °C73 °F · 1,440 mm57 in
Frequently asked questions
What is the warmest month in Jacksonville?
July is the warmest month in Jacksonville, with an average high of 32 °C (90 °F) and an average low of 23 °C (73 °F).
What is the coldest month in Jacksonville?
January is the coldest month, with an average high of 17 °C (63 °F) and an average low of 5 °C (42 °F).
When does it rain the most in Jacksonville?
June is the wettest month with about 187 mm (7.4 in) of precipitation; November is the driest with about 53 mm (2.1 in).
What is the best time to visit Jacksonville?
Judging by long-term averages, the most comfortable months are March and April and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.