17.05
sun
sun
Day

64°F
E 13 mph
Precip.
0%
0%
Night

46°F
SE 16 mph
Precip.
0%
0%
18.05
mon
mon
Day

50°F
SE 11 mph
Precip.
0%
0%
Night

46°F
NE 9 mph
Precip.
0%
0%
19.05
tue
tue
Day

54°F
NE 9 mph
Precip.
0%
0%
Night

52°F
N 9 mph
Precip.
0%
0%
20.05
wed
wed
Day

66°F
E 16 mph
Precip.
0%
0%
Night

50°F
SE 17 mph
Precip.
0%
0%
21.05
thu
thu
Day

46°F
SE 18 mph
Precip.
0%
0%
Night

45°F
SE 12 mph
Precip.
0%
0%
22.05
fri
fri
Day

48°F
E 13 mph
Precip.
0%
0%
Night

48°F
NE 12 mph
Precip.
0%
0%
23.05
sat
sat
Day

43°F
NW 9 mph
Precip.
100%
100%
Night

43°F
NW 4 mph
Precip.
77%
77%
sea water
temperature
temperature
| Summerside |
monthly
weather
weather
| Summerside |
current
weather
weather
| Summerside |
14 days
forecast
forecast
| Summerside |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 44.5°F. The highest and lowest sea temperatures during the month were 48.0°F and 41.0°F.
Air temperature in Summerside, °F
Precipitation total in Summerside, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Summerside
Summerside on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Summerside
Local time: 16:58
May 17, sunday
1800

66°F
S
19 mph
19 mph
2100

54°F
SE
17 mph
17 mph
May 18, monday
0000

46°F
SE
16 mph
16 mph
0300

45°F
E
12 mph
12 mph
0600

45°F
SE
13 mph
13 mph
0900

46°F
SE
12 mph
12 mph
1200

50°F
SE
11 mph
11 mph
1500

52°F
SE
5 mph
5 mph




























