Annual mean 8°C · wettest around February · prevailing wind W
Warmest
25.4 °C
Coldest
-3.9 °C
Wettest
38%
Windiest
5.4 m/s
Prevailing
W
4.4 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 Guelph over the whole year is 8°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C. The rainy (wet) season in Guelph runs from November to April, peaking in February with a 26% chance of rain on a given day. The dry season is May to October; July is the driest month, at 11%. Winds in Guelph 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 W. The clearest skies in Guelph come in July, when the sky is typically 38% covered; December is the cloudiest month, at 75%.
Month by month Guelph 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
-3°C
-6°C
-9°C
26%
73%
4.0 m/s
0
0
0
February
-2°C
-5°C
-8°C
26%
66%
4.1 m/s
0
0
2
March
3°C
-2°C
-3°C
19%
58%
4.1 m/s
0
0
10
April
9°C
3°C
3°C
20%
55%
4.0 m/s
6
0
31
May
16°C
9°C
13°C
15%
47%
3.3 m/s
38
7
63
June
22°C
15°C
20°C
14%
43%
3.1 m/s
69
23
62
July
25°C
17°C
24°C
11%
38%
2.6 m/s
72
47
37
August
24°C
16°C
24°C
12%
39%
2.6 m/s
75
44
42
September
21°C
13°C
19°C
12%
41%
2.7 m/s
66
19
67
October
13°C
8°C
10°C
18%
55%
3.2 m/s
27
2
55
November
5°C
2°C
0°C
19%
64%
3.7 m/s
4
0
18
December
-0°C
-2°C
-6°C
23%
75%
3.9 m/s
0
0
2
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 Guelph weather by season
Year round, Guelph has days of about -3°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -6°C to 17°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around February and least likely around July. 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.
Guelph weather in winterDecember to February
High -2°CLow -4°CRain 25%
Winter in Guelph has typical daily highs of about -2°C and lows of about -4°C, with a 25% chance of rain on a given day.
Guelph weather in springMarch to May
High 9°CLow 3°CRain 18%
Spring in Guelph has typical daily highs of about 9°C and lows of about 3°C, with a 18% chance of rain on a given day.
Guelph weather in summerJune to August
High 24°CLow 16°CRain 12%
Summer in Guelph has typical daily highs of about 24°C and lows of about 16°C, with a 12% chance of rain on a given day.
Guelph weather in autumnSeptember to November
High 13°CLow 7°CRain 16%
Autumn in Guelph has typical daily highs of about 13°C and lows of about 7°C, with a 16% chance of rain on a given day.
When is the rainy season in Guelph?
The rainy (wet) season in Guelph runs from November to April, peaking in February with a 26% chance of rain on a given day. The dry season is May to October; July is the driest month, at 11%.
What time of year is Guelph windiest?
Winds in Guelph 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 W.
What is the average temperature in Guelph year round?
The average temperature in Guelph over the whole year is 8°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C.