Annual mean 11°C · wettest around September · prevailing wind W
Warmest
18.2 °C
Coldest
8.3 °C
Wettest
35%
Windiest
6.8 m/s
Prevailing
W
5.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
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 Invercargill over the whole year is 11°C. January is the hottest month, with highs of about 18°C; July is the coldest, with lows of about 5°C. Invercargill has no sharply defined rainy season: the chance of rain on a given day runs from 16% in March, the driest month, to 26% in September, the wettest. Winds in Invercargill are highest in January, averaging 5.3 m/s (19 km/h), and lightest in June, at 3.9 m/s (14 km/h). The prevailing wind is from the W. The clearest skies in Invercargill come in August, when the sky is typically 38% covered; December is the cloudiest month, at 52%.
Month by month Invercargill 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
18°C
12°C
14°C
18%
48%
5.3 m/s
44
6
68
February
18°C
12°C
14°C
19%
44%
4.8 m/s
46
3
70
March
17°C
10°C
13°C
16%
47%
4.4 m/s
43
2
75
April
14°C
9°C
10°C
24%
42%
4.8 m/s
19
0
65
May
12°C
7°C
8°C
24%
40%
4.4 m/s
9
0
55
June
9°C
5°C
5°C
22%
48%
3.9 m/s
0
0
38
July
9°C
5°C
4°C
26%
42%
4.2 m/s
0
0
31
August
10°C
5°C
6°C
21%
38%
4.0 m/s
1
0
44
September
12°C
6°C
7°C
26%
39%
5.0 m/s
4
0
50
October
13°C
8°C
8°C
24%
42%
5.1 m/s
16
0
54
November
15°C
10°C
11°C
21%
46%
5.0 m/s
26
0
66
December
17°C
12°C
12°C
19%
52%
5.3 m/s
38
1
70
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 Invercargill weather by season
Year round, Invercargill has days of about 9°C at their warmest in July, its coolest month, and 18°C in January, its warmest; the coolest hours of the day run from 5°C to 12°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around September and least likely around March. 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.
Invercargill weather in winterJune to August
High 9°CLow 5°CRain 23%
Winter in Invercargill has typical daily highs of about 9°C and lows of about 5°C, with a 23% chance of rain on a given day.
Invercargill weather in springSeptember to November
High 13°CLow 8°CRain 24%
Spring in Invercargill has typical daily highs of about 13°C and lows of about 8°C, with a 24% chance of rain on a given day.
Invercargill weather in summerDecember to February
High 17°CLow 12°CRain 19%
Summer in Invercargill has typical daily highs of about 17°C and lows of about 12°C, with a 19% chance of rain on a given day.
Invercargill weather in autumnMarch to May
High 14°CLow 9°CRain 21%
Autumn in Invercargill has typical daily highs of about 14°C and lows of about 9°C, with a 21% chance of rain on a given day.
When is the rainy season in Invercargill?
Invercargill has no sharply defined rainy season: the chance of rain on a given day runs from 16% in March, the driest month, to 26% in September, the wettest.
What time of year is Invercargill windiest?
Winds in Invercargill are highest in January, averaging 5.3 m/s (19 km/h), and lightest in June, at 3.9 m/s (14 km/h). The prevailing wind is from the W.
What is the average temperature in Invercargill year round?
The average temperature in Invercargill over the whole year is 11°C. January is the hottest month, with highs of about 18°C; July is the coldest, with lows of about 5°C.