Annual mean 9°C · wettest around May · prevailing wind S
Warmest
29.2 °C
Coldest
1.6 °C
Wettest
26%
Windiest
5.7 m/s
Prevailing
S
4.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Wellington over the whole year is 9°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -6°C. Wellington has no sharply defined rainy season: the chance of rain on a given day runs from 8% in December, the driest month, to 22% in May, the wettest. Winds in Wellington are highest in April, averaging 4.3 m/s (15 km/h), and lightest in September, at 3.1 m/s (11 km/h). The prevailing wind is from the S. The clearest skies in Wellington come in July, when the sky is typically 15% covered; May is the cloudiest month, at 33%.
Month by month Wellington climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
2°C
-6°C
-4°C
8%
24%
3.5 m/s
0
0
6
February
3°C
-5°C
-4°C
9%
25%
4.1 m/s
1
0
13
March
9°C
-2°C
2°C
16%
28%
4.1 m/s
4
0
32
April
13°C
2°C
6°C
16%
29%
4.3 m/s
20
0
50
May
18°C
8°C
13°C
22%
33%
3.7 m/s
44
4
67
June
26°C
14°C
22°C
18%
19%
3.4 m/s
68
38
48
July
29°C
17°C
26°C
15%
15%
3.2 m/s
55
65
24
August
28°C
15°C
25°C
16%
16%
3.2 m/s
66
56
33
September
24°C
11°C
20°C
15%
17%
3.1 m/s
71
28
56
October
16°C
4°C
10°C
14%
20%
3.4 m/s
36
1
62
November
9°C
-1°C
3°C
12%
20%
3.5 m/s
7
0
36
December
4°C
-4°C
-2°C
8%
20%
3.9 m/s
0
0
13
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Wellington weather by season
Year round, Wellington has days of about 2°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -6°C to 17°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around May and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Wellington weather in winterDecember to February
High 3°CLow -5°CRain 8%
Winter in Wellington has typical daily highs of about 3°C and lows of about -5°C, with a 8% chance of rain on a given day.
Wellington weather in springMarch to May
High 13°CLow 3°CRain 18%
Spring in Wellington has typical daily highs of about 13°C and lows of about 3°C, with a 18% chance of rain on a given day.
Wellington weather in summerJune to August
High 27°CLow 15°CRain 16%
Summer in Wellington has typical daily highs of about 27°C and lows of about 15°C, with a 16% chance of rain on a given day.
Wellington weather in autumnSeptember to November
High 16°CLow 5°CRain 14%
Autumn in Wellington has typical daily highs of about 16°C and lows of about 5°C, with a 14% chance of rain on a given day.
When is the rainy season in Wellington?
Wellington has no sharply defined rainy season: the chance of rain on a given day runs from 8% in December, the driest month, to 22% in May, the wettest.
What time of year is Wellington windiest?
Winds in Wellington are highest in April, averaging 4.3 m/s (15 km/h), and lightest in September, at 3.1 m/s (11 km/h). The prevailing wind is from the S.
What is the average temperature in Wellington year round?
The average temperature in Wellington over the whole year is 9°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -6°C.