Annual mean 18°C · wettest around March · prevailing wind SE
Warmest
27.5 °C
Coldest
14.0 °C
Wettest
45%
Windiest
5.7 m/s
Prevailing
SE
4.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Bay over the whole year is 18°C. January is the hottest month, with highs of about 26°C; July is the coldest, with lows of about 9°C. Nelson Bay has no sharply defined rainy season: the chance of rain on a given day runs from 15% in September, the driest month, to 26% in March, the wettest. Winds in Nelson Bay are highest in December, averaging 4.3 m/s (15 km/h), and lightest in April, at 3.0 m/s (11 km/h). The prevailing wind is from the SE. The clearest skies in Nelson Bay come in August, when the sky is typically 39% covered; March is the cloudiest month, at 56%.
Month by month Nelson Bay 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
26°C
22°C
26°C
21%
51%
4.0 m/s
57
47
26
February
26°C
21°C
26°C
21%
51%
3.9 m/s
62
52
27
March
25°C
20°C
24°C
26%
56%
3.6 m/s
70
43
35
April
21°C
15°C
20°C
20%
48%
3.0 m/s
80
16
62
May
18°C
12°C
15°C
16%
44%
3.1 m/s
56
2
80
June
15°C
11°C
12°C
22%
54%
3.4 m/s
25
0
74
July
15°C
9°C
11°C
16%
41%
3.5 m/s
21
0
75
August
16°C
9°C
12°C
18%
39%
3.4 m/s
32
0
78
September
19°C
12°C
16°C
15%
41%
3.6 m/s
59
3
79
October
22°C
16°C
19°C
20%
49%
3.9 m/s
78
12
72
November
24°C
18°C
21°C
18%
47%
4.0 m/s
79
21
61
December
26°C
20°C
24°C
16%
50%
4.3 m/s
68
34
43
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 Bay weather by season
Year round, Nelson Bay has days of about 15°C at their warmest in June, its coolest month, and 26°C in January, its warmest; the coolest hours of the day run from 9°C to 22°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around March and least likely around September. 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 Bay weather in winterJune to August
High 15°CLow 9°CRain 18%
Winter in Nelson Bay has typical daily highs of about 15°C and lows of about 9°C, with a 18% chance of rain on a given day.
Nelson Bay weather in springSeptember to November
High 21°CLow 15°CRain 17%
Spring in Nelson Bay has typical daily highs of about 21°C and lows of about 15°C, with a 17% chance of rain on a given day.
Nelson Bay weather in summerDecember to February
High 26°CLow 21°CRain 19%
Summer in Nelson Bay has typical daily highs of about 26°C and lows of about 21°C, with a 19% chance of rain on a given day.
Nelson Bay weather in autumnMarch to May
High 21°CLow 16°CRain 21%
Autumn in Nelson Bay has typical daily highs of about 21°C and lows of about 16°C, with a 21% chance of rain on a given day.
When is the rainy season in Nelson Bay?
Nelson Bay has no sharply defined rainy season: the chance of rain on a given day runs from 15% in September, the driest month, to 26% in March, the wettest.
What time of year is Nelson Bay windiest?
Winds in Nelson Bay are highest in December, averaging 4.3 m/s (15 km/h), and lightest in April, at 3.0 m/s (11 km/h). The prevailing wind is from the SE.
What is the average temperature in Nelson Bay year round?
The average temperature in Nelson Bay over the whole year is 18°C. January is the hottest month, with highs of about 26°C; July is the coldest, with lows of about 9°C.