Measurements:
°C
°F
Wellington
48°F
S 5 mph
Feels like: 46°F
Precip: 5%
World Resorts New Zealand Wellington Weather

7 Day Weather Forecast

09.09
wed
DAY
52°F
S 14 mph
precip
5%
NIGHT
52°F
SE 30 mph
precip
25%
09.10
thu
DAY
50°F
NE 7 mph
precip
67%
NIGHT
46°F
N 24 mph
precip
24%
09.11
fri
DAY
50°F
SE 9 mph
precip
14%
NIGHT
46°F
NW 4 mph
precip
12%
09.12
sat
DAY
52°F
SE 13 mph
precip
15%
NIGHT
50°F
E 12 mph
precip
6%
09.13
sun
DAY
52°F
NW 12 mph
precip
6%
NIGHT
50°F
S 6 mph
precip
13%
09.14
mon
DAY
56°F
S 17 mph
precip
10%
NIGHT
54°F
S 15 mph
precip
10%
09.15
tue
DAY
56°F
SE 26 mph
precip
12%
NIGHT
56°F
SE 19 mph
precip
14%

Wellington Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Wellington was 12.8°F. The maximum and minimum values were 12.1°F and 13.5°F respectively.

Wellington on the Weather Map

Best Time to Visit Wellington
The most sunny months:
January 15 days
February 14 days
March 13 days
The most warm months:
February 68.8 °F
January 68.5 °F
March 66.1 °F
Warmest sea temperature:
February 64.4 °F
January 63.7 °F
March 63.0 °F
The most cold months:
August 53.6 °F
July 54.1 °F
September 55.1 °F
The most rainy months:
August 5 days
June 5 days
July 5 days
The most windy months:
September 17 mph
October 17 mph
November 16 mph