July is one of the warmer months of the year in Jacksonville, with average highs near 33°C and lows around 23.3°C (mean 28.2°C). It is a relatively wet time of year, averaging 163 mm of rainfall and 78% relative humidity across the period.
July is one of the warmer months of the year in Jacksonville. Across 45 years of records, the warmest July in Jacksonville was 2016 — when the month averaged 30.3°C — while the coldest was 1984 at 26.5°C. Typical July days reach 33°C with nights near 23.3°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Jacksonville, averaging 163 mm of rainfall. The wettest July on record was 1991 with 284 mm, while the driest was 2016 at 83 mm.
Relative humidity in Jacksonville during July averages 78%. The most humid July was 1991 at 87%, and the least humid was 2016 at 67%.
July receives about 6.1 kWh/m²/day of solar energy in Jacksonville. The sunniest July was 2016 at 7 kWh/m²/day, and the cloudiest was 1984 at 5.3.
Average wind speed in Jacksonville during July is 0.5 m/s. The windiest July was 1996 at 0.7 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.9°C | 28.2°C | 27.7°C | 28.4°C | 28.9°C | +1°C |
| Avg High | 32.8°C | 32.8°C | 32.5°C | 33.3°C | 33.7°C | +0.9°C |
| Avg Low | 23.0°C | 23.5°C | 23.0°C | 23.5°C | 24.0°C | +1°C |
| Avg Rain | 161 mm | 164 mm | 164 mm | 150 mm | 184 mm | +23 mm |
July temperatures in Jacksonville have risen by about 1.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 18.2°C (1983) to a record high of 41.3°C (1981).
Rainfall in July is a relatively wet time of year, averaging 163 mm, with a wettest year of 284 mm.
A quieter season to visit Jacksonville
If your dates are flexible, the more temperate months of October and April tend to be the most comfortable for visiting Jacksonville. That said, July — with days averaging 33°C and nights around 23.3°C (mean 28.2°C) and higher rainfall (163 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 35.3°C | 29.8°C | 24.3°C | 40.9°C | 22.1°C | 117 mm | 74% | 0.5 m/s | 6.5 |
| 2024 | 34.9°C | 29.8°C | 24.7°C | 38.5°C | 22.5°C | 240 mm | 76% | 0.5 m/s | 6.3 |
| 2023 | 34.1°C | 29.1°C | 24.2°C | 37.7°C | 22.6°C | 190 mm | 80% | 0.5 m/s | 6.1 |
| 2022 | 33.5°C | 28.8°C | 24.0°C | 37.5°C | 22.7°C | 173 mm | 79% | 0.5 m/s | 6.3 |
| 2021 | 31.4°C | 27.3°C | 23.2°C | 35.3°C | 21.0°C | 237 mm | 84% | 0.5 m/s | 5.6 |
| 2020 | 33.1°C | 28.4°C | 23.6°C | 37.7°C | 22.3°C | 148 mm | 79% | 0.6 m/s | 6.3 |
| 2019 | 33.8°C | 28.6°C | 23.5°C | 38.6°C | 21.0°C | 155 mm | 75% | 0.5 m/s | 5.8 |
| 2018 | 32.1°C | 27.7°C | 23.4°C | 36.5°C | 21.7°C | 187 mm | 83% | 0.5 m/s | 5.6 |
| 2017 | 32.8°C | 28.1°C | 23.5°C | 35.9°C | 21.1°C | 202 mm | 81% | 0.5 m/s | 6.3 |
| 2016 🔥 | 36.4°C | 30.3°C | 24.1°C | 40.0°C | 22.9°C | 83 mm | 67% | 0.5 m/s | 7 |
| 2015 | 33.5°C | 28.6°C | 23.7°C | 37.3°C | 20.6°C | 181 mm | 78% | 0.5 m/s | 6.4 |
| 2014 | 33.0°C | 28.1°C | 23.1°C | 36.0°C | 20.5°C | 135 mm | 76% | 0.5 m/s | 6 |
| 2013 | 30.9°C | 26.8°C | 22.7°C | 34.5°C | 21.1°C | 211 mm | 85% | 0.6 m/s | 5.9 |
| 2012 | 31.9°C | 27.5°C | 23.1°C | 35.3°C | 21.0°C | 84 mm | 83% | 0.5 m/s | 6.6 |
| 2011 | 33.6°C | 28.6°C | 23.5°C | 37.4°C | 20.7°C | 158 mm | 76% | 0.5 m/s | 6.1 |
| 2010 | 34.7°C | 29.3°C | 23.9°C | 39.9°C | 20.2°C | 108 mm | 73% | 0.6 m/s | 6.6 |
| 2009 | 31.4°C | 27.0°C | 22.6°C | 34.9°C | 20.8°C | 171 mm | 82% | 0.5 m/s | 5.9 |
| 2008 | 31.7°C | 27.2°C | 22.6°C | 36.0°C | 20.6°C | 208 mm | 81% | 0.5 m/s | 5.8 |
| 2007 | 32.4°C | 27.7°C | 23.0°C | 36.7°C | 19.6°C | 182 mm | 77% | 0.5 m/s | 5.7 |
| 2006 | 34.0°C | 28.4°C | 22.8°C | 37.4°C | 18.4°C | 110 mm | 72% | 0.6 m/s | 6.5 |
| 2005 | 32.8°C | 28.4°C | 24.0°C | 37.4°C | 22.3°C | 158 mm | 82% | 0.5 m/s | 6.4 |
| 2004 | 32.3°C | 27.7°C | 23.1°C | 36.2°C | 20.9°C | 188 mm | 81% | 0.5 m/s | 6.1 |
| 2003 | 31.0°C | 26.9°C | 22.8°C | 35.8°C | 21.3°C | 167 mm | 83% | 0.5 m/s | 5.4 |
| 2002 | 33.0°C | 27.9°C | 22.9°C | 39.2°C | 20.9°C | 140 mm | 78% | 0.5 m/s | 6.3 |
| 2001 | 32.1°C | 27.6°C | 23.0°C | 35.6°C | 19.8°C | 178 mm | 79% | 0.6 m/s | 6.1 |
| 2000 | 34.3°C | 28.6°C | 22.9°C | 39.2°C | 20.0°C | 140 mm | 70% | 0.6 m/s | 6.4 |
| 1999 | 33.7°C | 28.6°C | 23.4°C | 39.7°C | 21.5°C | 104 mm | 75% | 0.5 m/s | 6.5 |
| 1998 | 33.1°C | 28.7°C | 24.3°C | 39.3°C | 22.0°C | 244 mm | 79% | 0.6 m/s | 6 |
| 1997 | 32.9°C | 28.1°C | 23.3°C | 39.1°C | 21.1°C | 179 mm | 78% | 0.5 m/s | 6.2 |
| 1996 | 33.6°C | 28.5°C | 23.3°C | 38.3°C | 21.3°C | 107 mm | 75% | 0.7 m/s | 6.1 |
| 1995 | 32.7°C | 28.2°C | 23.6°C | 36.8°C | 21.2°C | 148 mm | 78% | 0.5 m/s | 6.2 |
| 1994 | 31.1°C | 26.9°C | 22.7°C | 34.8°C | 21.3°C | 193 mm | 83% | 0.5 m/s | 6 |
| 1993 | 34.1°C | 29.0°C | 23.8°C | 37.1°C | 22.0°C | 136 mm | 74% | 0.5 m/s | 6.7 |
| 1992 | 32.5°C | 27.9°C | 23.4°C | 37.1°C | 21.7°C | 124 mm | 79% | 0.5 m/s | 6.5 |
| 1991 🌧️ | 30.7°C | 27.1°C | 23.5°C | 34.6°C | 22.2°C | 284 mm | 87% | 0.5 m/s | 6 |
| 1990 | 33.8°C | 28.8°C | 23.7°C | 41.2°C | 22.4°C | 122 mm | 72% | 0.6 m/s | 6.1 |
| 1989 | 32.0°C | 27.5°C | 23.0°C | 36.6°C | 21.3°C | 162 mm | 79% | 0.5 m/s | 6.1 |
| 1988 | 33.5°C | 28.2°C | 22.9°C | 36.8°C | 19.7°C | 127 mm | 70% | 0.6 m/s | 6 |
| 1987 | 32.8°C | 28.0°C | 23.3°C | 38.4°C | 20.6°C | 168 mm | 77% | 0.5 m/s | 6.1 |
| 1986 | 34.6°C | 29.0°C | 23.4°C | 40.3°C | 21.0°C | 130 mm | 71% | 0.6 m/s | 6.3 |
| 1985 | 31.8°C | 27.1°C | 22.4°C | 36.1°C | 21.0°C | 154 mm | 78% | 0.5 m/s | 6 |
| 1984 ❄️ | 31.1°C | 26.5°C | 22.0°C | 35.8°C | 20.5°C | 186 mm | 80% | 0.5 m/s | 5.3 |
| 1983 | 32.8°C | 27.8°C | 22.9°C | 36.8°C | 18.2°C | 155 mm | 78% | 0.5 m/s | — |
| 1982 | 31.0°C | 26.9°C | 22.8°C | 34.8°C | 21.4°C | 212 mm | 84% | 0.5 m/s | — |
| 1981 | 35.9°C | 29.9°C | 23.9°C | 41.3°C | 19.2°C | 155 mm | 67% | 0.5 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 33°C with lows near 23.3°C (mean 28.2°C), based on 45 years of NASA POWER data.
July averages 163 mm of rainfall in Jacksonville, a relatively wet time of year. The wettest on record was 284 mm in 1991.
The hottest July reached 41.3°C in 1981. The coldest dipped to 18.2°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.4°C. Daytime highs moved from 32.5°C to 33.8°C and overnight lows from 22.8°C to 24.1°C over the same span.
July is one of the warmer months of the year in Jacksonville and a relatively wet time of year, so plan for around 33°C daytime highs and 23.3°C at night.
Not quite — July is the 12th coolest month in Jacksonville, averaging 28.2°C.
For July in Jacksonville, pack light, breathable clothing and sun protection, with typical highs of 33°C and lows of 23.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 78% — quite humid.
Average wind speed in July is 0.5 m/s. The windiest July on record averaged 0.7 m/s (1996).
The wettest July on record was 1991 with 284 mm. On average, July sees 163 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Jacksonville behaves each July, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for July specifically, along with year-by-year records and how the month has changed over the decades.
