World Resorts Canada St. John's Weather

St. John's 14 Days Forecast

15.09
tue
Day
63°F
SE 8 mph
Precip.
21%
Night
52°F
W 9 mph
Precip.
25%
16.09
wed
Day
61°F
SE 4 mph
Precip.
21%
Night
55°F
E 10 mph
Precip.
27%
17.09
thu
Day
68°F
E 12 mph
Precip.
3%
Night
50°F
W 5 mph
Precip.
26%
18.09
fri
Day
57°F
NW 8 mph
Precip.
17%
Night
52°F
NE 19 mph
Precip.
67%
19.09
sat
Day
43°F
E 36 mph
Precip.
33%
Night
41°F
SE 19 mph
Precip.
18%
20.09
sun
Day
48°F
SE 14 mph
Precip.
1%
Night
45°F
NE 7 mph
Precip.
25%
21.09
mon
Day
52°F
N 12 mph
Precip.
33%
Night
48°F
SE 12 mph
Precip.
29%
22.09
tue
Day
48°F
SE 15 mph
Precip.
21%
Night
43°F
SE 6 mph
Precip.
10%
23.09
wed
Day
48°F
SE 12 mph
Precip.
24%
Night
39°F
SE 4 mph
Precip.
16%
24.09
thu
Day
55°F
E 7 mph
Precip.
13%
Night
52°F
N 6 mph
Precip.
39%
25.09
fri
Day
64°F
N 16 mph
Precip.
18%
Night
59°F
N 26 mph
Precip.
91%
26.09
sat
Day
63°F
NE 18 mph
Precip.
6%
Night
50°F
E 19 mph
Precip.
28%
27.09
sun
Day
55°F
E 21 mph
Precip.
3%
Night
45°F
E 16 mph
Precip.
4%
28.09
mon
Day
48°F
SE 19 mph
Precip.
17%
Night
46°F
S 19 mph
Precip.
35%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 58.9°F. The highest and lowest sea temperatures during the month were 60.8°F and 57.0°F.

Air temperature in St. John's, °F

Precipitation total in St. John's, in.

* Charts above show average data for the last 3 years.

Best time for vacation in St. John's

Sunniest months:
August 8 days
September 7 days
July 7 days
Warmest months:
August 66.1 °F
July 64.5 °F
September 60.3 °F
Warmest sea temp:
August 58.9 °F
September 57.0 °F
July 52.7 °F
Coldest months:
February 28.1 °F
January 30.2 °F
March 31.7 °F
Rainiest months:
November 6 days
August 3 days
May 3 days
Windiest months:
February 16.4 mph
March 15.4 mph
January 15.3 mph

St. John's on a weather map

Current weather
15:08
St. John's
+59°F
SW 13 mph
Feels like: +57°F
Precip.: 24%
Places in Canada:
Name
°F
Vancouver
+59°F
Victoria
+55°F
Winnipeg
+54°F
Halifax
+70°F
Quebec
+63°F
Moncton
+64°F
Montreal
+61°F
Niagara Falls
+75°F
Prince Edward Island
+61°F
Ottawa
+57°F
Saint John
+66°F
St. John's
+59°F
Saint Andrews
+61°F
Sydney
+61°F
Toronto
+75°F
all places
24 Hours Forecast
St. John's
Local time: 15:08
September 15, tuesday
1800
54°F
SW
8 mph
2100
52°F
SW
9 mph
September 16, wednesday
0000
52°F
W
9 mph
0300
52°F
W
8 mph
0600
54°F
W
6 mph
0900
55°F
S
3 mph
1200
61°F
SE
4 mph
1500
66°F
NE
4 mph
Units of measurement: °C / °F