Verdict: Good month
Wellington Weather in September
September is mild-to-cool in Wellington, topping out near 13°C (55°F) — comfortable with a layer on. Expect showers on roughly 13 days of the month — rarely trip-ruining, worth planning around. Overall, September is a solid month to visit Wellington.
Average high
13°C / 55°F
Average low
9°C / 48°F
Rain days
~13
Precipitation
93 mm
What to pack for Wellington in September
- Layers — t-shirts under a light jacket or sweater
- Rain gear is non-negotiable — expect rain on roughly 13 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Wellington: Jan (20°C / 68°F) · Coolest: Jul (12°C / 54°F) · Wettest: Jun (~13 rain days)
20°
15°
Jan
20°
15°
Feb
18°
14°
Mar
17°
13°
Apr
15°
11°
May
13°
10°
Jun
12°
8°
Jul
12°
9°
Aug
13°
9°
Sep
15°
11°
Oct
16°
12°
Nov
18°
14°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)