Bristol · March
Run in the midday.
Cool month: average high 50°F, low 39°F. Humidity averages 82% — the limiting factor on most runs. Expect 18 rain days — plan around the radar. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
Avg high / low
50° / 39°F
Humidity
82%
Rain days
18/mo
Wind
15 mph
What March feels like in Bristol
Sunrise
07:21
Mid-month average
Sunset
19:16
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 Bristol in March
The kit for March in Bristol: a long-sleeve or light jacket for the first mile, a wind-blocking layer for exposed routes, a water-resistant cap or jacket on standby.
March vs the surrounding months
vs February
+3° avg high
+2 rain days
Bristol in February →
March
50°F avg high
18 rain days
Best: midday
vs April
-5° avg high
+4 rain days
Bristol in April →
Frequently Asked Questions
What is the best time of day to run in Bristol in March?+
Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
What's the average temperature in Bristol in March?+
Average high 50°F, average low 39°F.
How does March compare to surrounding months in Bristol?+
Compared to February (avg high 47°F), March is warmer. Compared to April (avg high 55°F), March is cooler.
Does it rain often in Bristol in March?+
Expect about 18 measurable rain days in March, on average.