Annual mean 19°C · wettest around March · prevailing wind E
Warmest
29.3 °C
Coldest
17.0 °C
Wettest
30%
Windiest
4.6 m/s
Prevailing
E
3.8 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 Grafton over the whole year is 19°C. January is the hottest month, with highs of about 28°C; July is the coldest, with lows of about 9°C. The rainy (wet) season in Grafton runs from December to April, peaking in March with a 28% chance of rain on a given day. The dry season is May to September; August is the driest month, at 9%. Winds in Grafton are highest in February, averaging 3.2 m/s (12 km/h), and lightest in May, at 2.4 m/s (9 km/h). The prevailing wind is from the E. The clearest skies in Grafton come in August, when the sky is typically 62% covered; March is the cloudiest month, at 74%.
Month by month Grafton 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
28°C
21°C
29°C
20%
70%
3.0 m/s
37
63
10
February
28°C
20°C
28°C
22%
70%
3.2 m/s
40
60
12
March
26°C
19°C
27°C
28%
74%
2.9 m/s
51
59
18
April
23°C
16°C
22°C
20%
67%
2.7 m/s
75
32
46
May
20°C
13°C
19°C
18%
69%
2.4 m/s
76
10
70
June
18°C
9°C
15°C
13%
67%
2.4 m/s
65
1
83
July
17°C
9°C
15°C
11%
66%
2.5 m/s
61
1
82
August
19°C
9°C
17°C
9%
62%
2.6 m/s
70
4
81
September
22°C
12°C
19°C
10%
66%
2.8 m/s
76
16
68
October
24°C
15°C
22°C
19%
71%
2.9 m/s
75
33
50
November
26°C
18°C
25°C
15%
68%
3.1 m/s
67
48
35
December
28°C
20°C
28°C
20%
70%
3.1 m/s
46
59
16
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 Grafton weather by season
Year round, Grafton has days of about 17°C at their warmest in July, its coolest month, and 28°C in January, its warmest; the coolest hours of the day run from 9°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 March and least likely around August. 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.
Grafton weather in winterJune to August
High 18°CLow 9°CRain 11%
Winter in Grafton has typical daily highs of about 18°C and lows of about 9°C, with a 11% chance of rain on a given day.
Grafton weather in springSeptember to November
High 24°CLow 15°CRain 15%
Spring in Grafton has typical daily highs of about 24°C and lows of about 15°C, with a 15% chance of rain on a given day.
Grafton weather in summerDecember to February
High 28°CLow 20°CRain 21%
Summer in Grafton has typical daily highs of about 28°C and lows of about 20°C, with a 21% chance of rain on a given day.
Grafton weather in autumnMarch to May
High 23°CLow 16°CRain 22%
Autumn in Grafton has typical daily highs of about 23°C and lows of about 16°C, with a 22% chance of rain on a given day.
When is the rainy season in Grafton?
The rainy (wet) season in Grafton runs from December to April, peaking in March with a 28% chance of rain on a given day. The dry season is May to September; August is the driest month, at 9%.
What time of year is Grafton windiest?
Winds in Grafton are highest in February, averaging 3.2 m/s (12 km/h), and lightest in May, at 2.4 m/s (9 km/h). The prevailing wind is from the E.
What is the average temperature in Grafton year round?
The average temperature in Grafton over the whole year is 19°C. January is the hottest month, with highs of about 28°C; July is the coldest, with lows of about 9°C.