Annual mean 19°C · wettest around July · prevailing wind SE
Warmest
31.1 °C
Coldest
14.7 °C
Wettest
34%
Windiest
5.4 m/s
Prevailing
SE
4.9 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 Northam over the whole year is 19°C. January is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 10°C. The rainy (wet) season in Northam runs from June to September, peaking in July with a 27% chance of rain on a given day. The dry season is October to May; December is the driest month, at 4%. Winds in Northam are highest in January, averaging 5.0 m/s (18 km/h), and lightest in June, at 3.2 m/s (12 km/h). The prevailing wind is from the SE. The clearest skies in Northam come in December, when the sky is typically 33% covered; July is the cloudiest month, at 64%.
Month by month Northam 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
30°C
21°C
27°C
5%
33%
5.0 m/s
53
52
25
February
30°C
21°C
27°C
6%
41%
4.7 m/s
52
53
25
March
28°C
20°C
25°C
7%
49%
4.5 m/s
64
46
37
April
24°C
16°C
21°C
10%
51%
3.7 m/s
81
20
66
May
20°C
12°C
17°C
14%
53%
3.3 m/s
70
3
84
June
17°C
10°C
13°C
22%
61%
3.2 m/s
40
0
83
July
16°C
10°C
12°C
27%
64%
3.5 m/s
24
0
79
August
16°C
10°C
12°C
25%
63%
3.5 m/s
30
0
81
September
19°C
11°C
15°C
16%
57%
3.7 m/s
52
3
81
October
22°C
13°C
18°C
12%
52%
4.2 m/s
69
12
74
November
26°C
16°C
22°C
7%
43%
4.7 m/s
74
29
58
December
29°C
20°C
26°C
4%
33%
4.9 m/s
60
47
34
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 Northam weather by season
Year round, Northam has days of about 16°C at their warmest in July, its coolest month, and 30°C in January, its warmest; the coolest hours of the day run from 10°C to 21°C through the year, and the average temperature over the year is 19°C around the clock. Rain is most likely around July 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.
Northam weather in winterJune to August
High 16°CLow 10°CRain 24%
Winter in Northam has typical daily highs of about 16°C and lows of about 10°C, with a 24% chance of rain on a given day.
Northam weather in springSeptember to November
High 22°CLow 13°CRain 12%
Spring in Northam has typical daily highs of about 22°C and lows of about 13°C, with a 12% chance of rain on a given day.
Northam weather in summerDecember to February
High 30°CLow 21°CRain 5%
Summer in Northam has typical daily highs of about 30°C and lows of about 21°C, with a 5% chance of rain on a given day.
Northam weather in autumnMarch to May
High 24°CLow 16°CRain 10%
Autumn in Northam has typical daily highs of about 24°C and lows of about 16°C, with a 10% chance of rain on a given day.
When is the rainy season in Northam?
The rainy (wet) season in Northam runs from June to September, peaking in July with a 27% chance of rain on a given day. The dry season is October to May; December is the driest month, at 4%.
What time of year is Northam windiest?
Winds in Northam are highest in January, averaging 5.0 m/s (18 km/h), and lightest in June, at 3.2 m/s (12 km/h). The prevailing wind is from the SE.
What is the average temperature in Northam year round?
The average temperature in Northam over the whole year is 19°C. January is the hottest month, with highs of about 30°C; July is the coldest, with lows of about 10°C.