Jacksonville · June
Run in the pre-dawn.
Average high is 87°F with a 74°F overnight low. Humidity averages 79% — the limiting factor on most runs. Expect 23 rain days — plan around the radar. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
Avg high / low
87° / 74°F
Humidity
79%
Rain days
23/mo
Wind
10 mph
What June feels like in Jacksonville
Sunrise
06:25
Mid-month average
Sunset
20:29
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
Midday
Heat peaks here. Skip unless you've got shade and pace tolerance.
Evening
Cools off after sunset but still warm. Good for easy efforts; avoid hard intervals if you're chasing pace.
What to wear running in Jacksonville in June
The kit for June in Jacksonville: light, breathable, and moisture-wicking — singlet or short-sleeve only, a water-resistant cap or jacket on standby.
June vs the surrounding months
vs May
+4° avg high
+9 rain days
Jacksonville in May →
June
87°F avg high
23 rain days
Best: pre-dawn
vs July
-2° avg high
-3 rain days
Jacksonville in July →
Frequently Asked Questions
What is the best time of day to run in Jacksonville in June?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in Jacksonville in June?+
Average high 87°F, average low 74°F.
How does June compare to surrounding months in Jacksonville?+
Compared to May (avg high 84°F), June is warmer. Compared to July (avg high 89°F), June is cooler.
Does it rain often in Jacksonville in June?+
Expect about 23 measurable rain days in June, on average.