Bristol · January
Run in the midday.
Cold: average high 46°F, low 37°F. Layering becomes the workout. Humidity averages 88% — 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
46° / 37°F
Humidity
88%
Rain days
18/mo
Wind
15 mph
What January feels like in Bristol
Sunrise
09:06
Mid-month average
Sunset
17:33
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 January
The kit for January 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.
January vs the surrounding months
vs December
-2° avg high
+1 rain days
Bristol in December →
January
46°F avg high
18 rain days
Best: midday
vs February
-1° avg high
+3 rain days
Bristol in February →
Frequently Asked Questions
What is the best time of day to run in Bristol in January?+
Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
What's the average temperature in Bristol in January?+
Average high 46°F, average low 37°F.
How does January compare to surrounding months in Bristol?+
Compared to December (avg high 48°F), January is cooler. Compared to February (avg high 47°F), January is cooler.
Does it rain often in Bristol in January?+
Expect about 18 measurable rain days in January, on average.