Baltimore · May
Run in the morning.
Comfortable average high of 73°F, dipping to 56°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
73° / 56°F
Humidity
73%
Rain days
16/mo
Wind
12 mph
What May feels like in Baltimore
Sunrise
05:52
Mid-month average
Sunset
20:13
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 Baltimore in May
The kit for May in Baltimore: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
May vs the surrounding months
vs April
+9° avg high
+2 rain days
Baltimore in April →
May
73°F avg high
16 rain days
Best: morning
vs June
-9° avg high
0 rain days
Baltimore in June →
Frequently Asked Questions
What is the best time of day to run in Baltimore in May?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Baltimore in May?+
Average high 73°F, average low 56°F.
How does May compare to surrounding months in Baltimore?+
Compared to April (avg high 64°F), May is warmer. Compared to June (avg high 81°F), May is cooler.
Does it rain often in Baltimore in May?+
Expect about 16 measurable rain days in May, on average.