Annual mean 14°C · wettest around July · prevailing wind NW
Warmest
20.7 °C
Coldest
11.9 °C
Wettest
27%
Windiest
7.1 m/s
Prevailing
NW
6.3 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 Porirua over the whole year is 14°C. February is the hottest month, with highs of about 20°C; July is the coldest, with lows of about 9°C. Porirua has no sharply defined rainy season: the chance of rain on a given day runs from 10% in January, the driest month, to 21% in July, the wettest. Winds in Porirua are highest in September, averaging 6.0 m/s (22 km/h), and lightest in June, at 4.8 m/s (17 km/h). The prevailing wind is from the NW. The clearest skies in Porirua come in February, when the sky is typically 47% covered; August is the cloudiest month, at 58%.
Month by month Porirua 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
20°C
16°C
17°C
10%
53%
5.5 m/s
67
3
78
February
20°C
16°C
17°C
11%
47%
5.4 m/s
71
2
80
March
19°C
14°C
15°C
10%
53%
5.2 m/s
62
1
83
April
17°C
13°C
13°C
12%
49%
5.0 m/s
42
0
83
May
15°C
12°C
11°C
16%
52%
5.2 m/s
20
0
75
June
13°C
10°C
9°C
18%
57%
4.8 m/s
6
0
68
July
12°C
9°C
8°C
21%
53%
5.0 m/s
1
0
59
August
13°C
9°C
8°C
19%
58%
5.3 m/s
1
0
57
September
14°C
10°C
8°C
16%
56%
6.0 m/s
4
0
63
October
15°C
11°C
10°C
14%
56%
5.7 m/s
13
0
72
November
17°C
14°C
13°C
16%
57%
5.9 m/s
33
0
78
December
19°C
15°C
15°C
15%
56%
5.8 m/s
57
0
79
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 Porirua weather by season
Year round, Porirua has days of about 12°C at their warmest in July, its coolest month, and 20°C in February, its warmest; the coolest hours of the day run from 9°C to 16°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around July and least likely around January. 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.
Porirua weather in winterJune to August
High 13°CLow 9°CRain 19%
Winter in Porirua has typical daily highs of about 13°C and lows of about 9°C, with a 19% chance of rain on a given day.
Porirua weather in springSeptember to November
High 15°CLow 11°CRain 15%
Spring in Porirua has typical daily highs of about 15°C and lows of about 11°C, with a 15% chance of rain on a given day.
Porirua weather in summerDecember to February
High 20°CLow 16°CRain 12%
Summer in Porirua has typical daily highs of about 20°C and lows of about 16°C, with a 12% chance of rain on a given day.
Porirua weather in autumnMarch to May
High 17°CLow 13°CRain 13%
Autumn in Porirua has typical daily highs of about 17°C and lows of about 13°C, with a 13% chance of rain on a given day.
When is the rainy season in Porirua?
Porirua has no sharply defined rainy season: the chance of rain on a given day runs from 10% in January, the driest month, to 21% in July, the wettest.
What time of year is Porirua windiest?
Winds in Porirua are highest in September, averaging 6.0 m/s (22 km/h), and lightest in June, at 4.8 m/s (17 km/h). The prevailing wind is from the NW.
What is the average temperature in Porirua year round?
The average temperature in Porirua over the whole year is 14°C. February is the hottest month, with highs of about 20°C; July is the coldest, with lows of about 9°C.