Annual mean 7°C · wettest around November · prevailing wind W
Warmest
23.4 °C
Coldest
-4.9 °C
Wettest
43%
Windiest
6.2 m/s
Prevailing
W
5.3 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 Summerside over the whole year is 7°C. July is the hottest month, with highs of about 23°C; February is the coldest, with lows of about -7°C. Summerside has no sharply defined rainy season: the chance of rain on a given day runs from 30% in August, the driest month, to 41% in November, the wettest. Winds in Summerside are highest in March, averaging 5.0 m/s (18 km/h), and lightest in August, at 3.6 m/s (13 km/h). The prevailing wind is from the W. The clearest skies in Summerside come in August, when the sky is typically 57% covered; November is the cloudiest month, at 72%.
Month by month Summerside 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
-4°C
-6°C
-11°C
37%
72%
4.8 m/s
0
0
0
February
-4°C
-7°C
-11°C
37%
62%
4.9 m/s
0
0
0
March
-0°C
-4°C
-7°C
37%
67%
5.0 m/s
0
0
2
April
6°C
1°C
-0°C
36%
68%
4.9 m/s
1
0
14
May
12°C
7°C
7°C
34%
66%
4.6 m/s
14
0
47
June
18°C
13°C
15°C
34%
66%
4.3 m/s
52
6
70
July
23°C
17°C
21°C
30%
62%
3.7 m/s
79
28
57
August
22°C
16°C
21°C
30%
57%
3.6 m/s
81
22
61
September
18°C
12°C
16°C
32%
57%
3.9 m/s
56
5
77
October
13°C
8°C
8°C
33%
63%
4.1 m/s
17
0
58
November
5°C
2°C
-1°C
41%
72%
5.0 m/s
1
0
12
December
-1°C
-3°C
-7°C
40%
70%
4.9 m/s
0
0
1
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 Summerside weather by season
Year round, Summerside has days of about -4°C at their warmest in January, its coolest month, and 23°C in July, its warmest; the coolest hours of the day run from -7°C to 17°C through the year, and the average temperature over the year is 7°C around the clock. Rain is most likely around November 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.
Summerside weather in winterDecember to February
High -3°CLow -5°CRain 38%
Winter in Summerside has typical daily highs of about -3°C and lows of about -5°C, with a 38% chance of rain on a given day.
Summerside weather in springMarch to May
High 6°CLow 1°CRain 36%
Spring in Summerside has typical daily highs of about 6°C and lows of about 1°C, with a 36% chance of rain on a given day.
Summerside weather in summerJune to August
High 21°CLow 15°CRain 31%
Summer in Summerside has typical daily highs of about 21°C and lows of about 15°C, with a 31% chance of rain on a given day.
Summerside weather in autumnSeptember to November
High 12°CLow 7°CRain 35%
Autumn in Summerside has typical daily highs of about 12°C and lows of about 7°C, with a 35% chance of rain on a given day.
When is the rainy season in Summerside?
Summerside has no sharply defined rainy season: the chance of rain on a given day runs from 30% in August, the driest month, to 41% in November, the wettest.
What time of year is Summerside windiest?
Winds in Summerside are highest in March, averaging 5.0 m/s (18 km/h), and lightest in August, at 3.6 m/s (13 km/h). The prevailing wind is from the W.
What is the average temperature in Summerside year round?
The average temperature in Summerside over the whole year is 7°C. July is the hottest month, with highs of about 23°C; February is the coldest, with lows of about -7°C.