Jacksonville Weather in May
In Jacksonville, May brings high daytime temperatures around 30°C (86°F), with nights cooling to 17°C (63°F). Expect quite a bit of rainfall this month.
Rainfall in Jacksonville in May
On average, there are about 9 days with rain during this month, averaging 110 mm (4.3 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Jacksonville in May
Daytime highs in Jacksonville in May reach 30°C (86°F), with nights around 17°C (63°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 17°C (63°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Jacksonville in May
Expect a lot of sunshine this month, with about 301 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Jacksonville in May
May sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.
Average water temperature in May
The water is 25°C (77°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If you prefer dry days with pleasant temperatures, February, March, April, October, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Jacksonville's climate page.
Jacksonville Temperature in May
Min Temperature
17°C (63°F)
Max Temperature
30°C (86°F)
Water Temperature
25°C (77°F)
Chance of Rain
30%
Precipitation
110 mm (4.3 in)
Rainy days
9 days
Humidity
73%
Windspeed
4 m/s (8 knots)
Sunshine
301 hours
Percentage Sunshine
72%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Jacksonville typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are pleasant, with lows typically ranging from 16°C (61°F) to 20°C (68°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Jacksonville in May
Browse day-by-day weather records for Jacksonville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jacksonville historical weather extremes in May
According to our 50 years of weather records for Jacksonville, the following extremes were recorded between 1976 and 2026.
- Jacksonville recorded its highest May temperature of 38°C (100°F) on May 27, 2019.
- Jacksonville experienced its chilliest May day on May 7, 1992, reaching only 16°C (61°F).
- Nighttime temperatures dropped to 7°C (45°F) on May 8, 1992, marking the coldest May night on record.
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
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What to Wear in Jacksonville in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 25°C (77°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Jacksonville in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Jacksonville's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Jacksonville climate overview or explore weather in the United States of America.
