Honolulu · May
Run in the morning.
Comfortable average high of 80°F, dipping to 72°F at night. Expect 16 rain days — plan around the radar. Humidity rises with the sun — morning runs catch the driest, coolest window.
Avg high / low
80° / 72°F
Humidity
72%
Rain days
16/mo
Wind
13 mph
What May feels like in Honolulu
Sunrise
05:53
Mid-month average
Sunset
19:03
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
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Honolulu in May
The kit for May in Honolulu: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
May vs the surrounding months
vs April
+2° avg high
-1 rain days
Honolulu in April →
May
80°F avg high
16 rain days
Best: morning
vs June
-2° avg high
+1 rain days
Honolulu in June →
Frequently Asked Questions
What is the best time of day to run in Honolulu in May?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Honolulu in May?+
Average high 80°F, average low 72°F.
How does May compare to surrounding months in Honolulu?+
Compared to April (avg high 79°F), May is warmer. Compared to June (avg high 82°F), May is cooler.
Does it rain often in Honolulu in May?+
Expect about 16 measurable rain days in May, on average.