Annual mean 9°C · wettest around February · prevailing wind SW
Warmest
25.2 °C
Coldest
-2.6 °C
Wettest
28%
Windiest
5.0 m/s
Prevailing
SW
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Oakville over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -4°C. Oakville has no sharply defined rainy season: the chance of rain on a given day runs from 10% in August, the driest month, to 20% in February, the wettest. Winds in Oakville are highest in February, averaging 4.1 m/s (15 km/h), and lightest in July, at 2.6 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in Oakville come in July, when the sky is typically 39% covered; December is the cloudiest month, at 69%.
Month by month Oakville 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
-2°C
-4°C
-8°C
19%
68%
4.0 m/s
0
0
1
February
-1°C
-4°C
-7°C
20%
63%
4.1 m/s
0
0
3
March
3°C
-1°C
-2°C
16%
55%
4.0 m/s
1
0
9
April
8°C
4°C
3°C
18%
53%
3.8 m/s
5
0
30
May
16°C
10°C
12°C
14%
47%
3.2 m/s
34
7
63
June
22°C
16°C
20°C
13%
42%
3.0 m/s
69
21
63
July
25°C
19°C
25°C
10%
39%
2.6 m/s
69
49
34
August
25°C
18°C
24°C
10%
39%
2.7 m/s
72
48
38
September
21°C
15°C
20°C
11%
41%
2.8 m/s
68
21
66
October
14°C
9°C
11°C
16%
53%
3.2 m/s
29
2
60
November
6°C
3°C
2°C
16%
60%
3.6 m/s
4
0
22
December
1°C
-1°C
-5°C
19%
69%
3.9 m/s
0
0
3
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 Oakville weather by season
Year round, Oakville has days of about -2°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -4°C to 19°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around February 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.
Oakville weather in winterDecember to February
High -1°CLow -3°CRain 20%
Winter in Oakville has typical daily highs of about -1°C and lows of about -3°C, with a 20% chance of rain on a given day.
Oakville weather in springMarch to May
High 9°CLow 5°CRain 16%
Spring in Oakville has typical daily highs of about 9°C and lows of about 5°C, with a 16% chance of rain on a given day.
Oakville weather in summerJune to August
High 24°CLow 18°CRain 11%
Summer in Oakville has typical daily highs of about 24°C and lows of about 18°C, with a 11% chance of rain on a given day.
Oakville weather in autumnSeptember to November
High 14°CLow 9°CRain 14%
Autumn in Oakville has typical daily highs of about 14°C and lows of about 9°C, with a 14% chance of rain on a given day.
When is the rainy season in Oakville?
Oakville has no sharply defined rainy season: the chance of rain on a given day runs from 10% in August, the driest month, to 20% in February, the wettest.
What time of year is Oakville windiest?
Winds in Oakville are highest in February, averaging 4.1 m/s (15 km/h), and lightest in July, at 2.6 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in Oakville year round?
The average temperature in Oakville over the whole year is 9°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -4°C.