Annual mean 10°C · wettest around January · prevailing wind SW
Warmest
19.2 °C
Coldest
4.8 °C
Wettest
30%
Windiest
6.2 m/s
Prevailing
SW
5.1 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 Nelson over the whole year is 10°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about 4°C. Nelson has no sharply defined rainy season: the chance of rain on a given day runs from 16% in April, the driest month, to 26% in January, the wettest. Winds in Nelson are highest in February, averaging 5.3 m/s (19 km/h), and lightest in July, at 3.8 m/s (14 km/h). The prevailing wind is from the SW. The clearest skies in Nelson come in May, when the sky is typically 57% covered; December is the cloudiest month, at 69%.
Month by month Nelson 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
5°C
4°C
0°C
26%
68%
4.8 m/s
0
0
7
February
7°C
4°C
1°C
25%
66%
5.3 m/s
0
0
12
March
8°C
4°C
3°C
23%
66%
4.7 m/s
1
0
25
April
11°C
5°C
6°C
16%
58%
4.2 m/s
5
0
45
May
15°C
9°C
11°C
17%
57%
3.9 m/s
23
0
74
June
17°C
12°C
14°C
17%
60%
4.0 m/s
45
4
78
July
19°C
14°C
16°C
19%
62%
3.8 m/s
58
5
79
August
18°C
14°C
15°C
19%
61%
4.0 m/s
55
4
81
September
16°C
11°C
13°C
21%
62%
3.9 m/s
35
2
77
October
13°C
9°C
9°C
23%
64%
4.4 m/s
7
0
63
November
8°C
6°C
4°C
23%
68%
4.4 m/s
0
0
30
December
6°C
5°C
2°C
25%
69%
4.7 m/s
0
0
14
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 Nelson weather by season
Year round, Nelson has days of about 5°C at their warmest in January, its coolest month, and 19°C in July, its warmest; the coolest hours of the day run from 4°C to 14°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around January and least likely around April. 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.
Nelson weather in winterDecember to February
High 6°CLow 4°CRain 25%
Winter in Nelson has typical daily highs of about 6°C and lows of about 4°C, with a 25% chance of rain on a given day.
Nelson weather in springMarch to May
High 11°CLow 6°CRain 19%
Spring in Nelson has typical daily highs of about 11°C and lows of about 6°C, with a 19% chance of rain on a given day.
Nelson weather in summerJune to August
High 18°CLow 13°CRain 18%
Summer in Nelson has typical daily highs of about 18°C and lows of about 13°C, with a 18% chance of rain on a given day.
Nelson weather in autumnSeptember to November
High 12°CLow 9°CRain 22%
Autumn in Nelson has typical daily highs of about 12°C and lows of about 9°C, with a 22% chance of rain on a given day.
When is the rainy season in Nelson?
Nelson has no sharply defined rainy season: the chance of rain on a given day runs from 16% in April, the driest month, to 26% in January, the wettest.
What time of year is Nelson windiest?
Winds in Nelson are highest in February, averaging 5.3 m/s (19 km/h), and lightest in July, at 3.8 m/s (14 km/h). The prevailing wind is from the SW.
What is the average temperature in Nelson year round?
The average temperature in Nelson over the whole year is 10°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about 4°C.