Wellington · September
Run in the morning.
Cool month: average high 55°F, low 49°F. Humidity averages 78% — the limiting factor on most runs. Expect 16 rain days — plan around the radar. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
55° / 49°F
Humidity
78%
Rain days
16/mo
Wind
21 mph
What September feels like in Wellington
Sunrise
06:22
Mid-month average
Sunset
18:10
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 Wellington in September
The kit for September in Wellington: 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.
September vs the surrounding months
vs August
+2° avg high
-1 rain days
Wellington in August →
September
55°F avg high
16 rain days
Best: morning
vs October
-3° avg high
+1 rain days
Wellington in October →
Frequently Asked Questions
What is the best time of day to run in Wellington in September?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Wellington in September?+
Average high 55°F, average low 49°F.
How does September compare to surrounding months in Wellington?+
Compared to August (avg high 54°F), September is warmer. Compared to October (avg high 58°F), September is cooler.
Does it rain often in Wellington in September?+
Expect about 16 measurable rain days in September, on average.