Rio de Janeiro · March
Run in the morning.
Comfortable average high of 85°F, dipping to 74°F at night. Humidity averages 81% — the limiting factor on most runs. Expect 19 rain days — plan around the radar. Humidity rises with the sun — morning runs catch the driest, coolest window.
Avg high / low
85° / 74°F
Humidity
81%
Rain days
19/mo
Wind
9 mph
What March feels like in Rio de Janeiro
Sunrise
05:55
Mid-month average
Sunset
18:07
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 Rio de Janeiro in March
The kit for March in Rio de Janeiro: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
March vs the surrounding months
vs February
-2° avg high
+2 rain days
Rio de Janeiro in February →
March
85°F avg high
19 rain days
Best: morning
vs April
+4° avg high
+3 rain days
Rio de Janeiro in April →
Frequently Asked Questions
What is the best time of day to run in Rio de Janeiro in March?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Rio de Janeiro in March?+
Average high 85°F, average low 74°F.
How does March compare to surrounding months in Rio de Janeiro?+
Compared to February (avg high 87°F), March is cooler. Compared to April (avg high 81°F), March is warmer.
Does it rain often in Rio de Janeiro in March?+
Expect about 19 measurable rain days in March, on average.