Saint John’s Water Temperature

Saint John's is a city close to Atlantic Ocean. August is the month with the highest water temperature at 58.1°F / 14.5°C.
The coldest month is March with an average water temperature of 30.4°F / -0.9°C.
June is the driest at 1.2in / 31.7mm and January the wettest month with 6.5in / 165.5mm.
With an average air temperature of 61.7°F / 16.5°C, August is the warmest month in a year. February is the coldest with 26.1°F / -3.3°C average air temperature.
The Climate is described as Warm-summer humid continental climate. Best time to Visit would be in June, July, August, September.

Saint John's Summary

Description Value
Current water temperature 2 °C / 35.6 °F
Warmest Month Water Temperature: August with 14.5°C / 58.1°F
Coldest Month Water Temperature: March with -0.9°C / 30.4°F
Warmest Month Air Temperature: August with 16.5°C / 61.7°F
Coldest Month Air Temperature: February with -3.3°C / 26.1°F
Wettest Month: January with 165.5mm / 6.5in
Driest Month: June with 31.7mm / 1.2in
Highest Humidity July with 82.3%
Lowest Humidity December with 77.4%
Best Time to Visit: June, July, August, September
Climate Classification Warm-summer humid continental climate

Saint John's water temperature by month

Atlantic Ocean water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

0.7 0.1 -0.4

February

-0.2 -0.6 -0.9

March

-0.6 -0.8 -1

April

0.6 -0.1 -0.6

May

2.8 1.6 0.6

June

8.4 5.4 2.9

July

13.7 11.2 8.7

August

14.9 14.3 13.6

September

13.7 12.3 10.9

October

11.2 9.3 7.3

November

7.2 5.5 3.9

December

4 2.3 0.7

Atlantic Ocean water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

33.3 32.2 31.3

February

31.6 30.9 30.4

March

30.9 30.6 30.2

April

33.1 31.8 30.9

May

37 34.9 33.1

June

47.1 41.7 37.2

July

56.7 52.2 47.7

August

58.8 57.7 56.5

September

56.7 54.1 51.6

October

52.2 48.7 45.1

November

45 41.9 39

December

39.2 36.1 33.3
August is the month with the highest water temperature at 58.1°F / 14.5°C. The month with the lowest is March with an average water temperature of 30.4°F / -0.9°C.

Saint John's weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
May. 09
Overcast clouds
53 °F
38°F
12 °C
4°C
4mph (7km/h)
south
0in (1mm)
45 %
79%
May. 10
Overcast clouds
46 °F
37°F
8 °C
3°C
4mph (7km/h)
west-southwest
0in (1mm)
35 %
82%
May. 11
Overcast clouds
48 °F
36°F
9 °C
2°C
3mph (5km/h)
west
0in (0mm)
10 %
78%
May. 12
Light rain
54 °F
36°F
12 °C
2°C
1mph (2km/h)
southwest
0in (6mm)
85 %
79%
May. 13
Broken clouds
54 °F
37°F
12 °C
3°C
3mph (5km/h)
west
0in (1mm)
50 %
82%
May. 14
Few clouds
56 °F
37°F
14 °C
3°C
4mph (7km/h)
west-southwest
0in (1mm)
50 %
70%
May. 15
Broken clouds
52 °F
37°F
11 °C
3°C
3mph (5km/h)
west
0in (1mm)
35 %
66%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
May. 16
Scattered clouds
43 °F
37°F
6 °C
3°C
2mph (3km/h)
west-northwest
0in (0mm)
25 %
70%
May. 17
Overcast clouds
41 °F
37°F
5 °C
3°C
2mph (3km/h)
east
0in (2mm)
60 %
86%
May. 18
Overcast clouds
54 °F
37°F
12 °C
3°C
2mph (4km/h)
east-southeast
0in (2mm)
65 %
94%
May. 19
Overcast clouds
48 °F
38°F
9 °C
4°C
2mph (3km/h)
southeast
0in (0mm)
15 %
80%
May. 20
Light rain
49 °F
39°F
9 °C
4°C
3mph (5km/h)
southeast
0in (7mm)
90 %
98%
May. 21
Overcast clouds
45 °F
39°F
7 °C
4°C
2mph (3km/h)
west
0in (0mm)
10 %
87%
May. 22
Overcast clouds
51 °F
37°F
11 °C
3°C
3mph (5km/h)
west-southwest
0in (0mm)
25 %
82%
May. 23
Overcast clouds
50 °F
37°F
10 °C
3°C
1mph (2km/h)
southeast
0in (0mm)
10 %
83%
May. 24
Overcast clouds
47 °F
37°F
8 °C
3°C
3mph (4km/h)
south-southeast
0in (1mm)
45 %
88%

Saint John's weather by month / climate table

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

3 -2.6 -7.9 165.5 14 77.5%

February

1.4 -3.3 -7.3 131 8 77.6%

March

2.7 -1.8 -5.7 88.7 6 78.6%

April

7.2 1.9 -2.4 54.4 3 79.6%

May

11.1 5.7 0.2 61.9 1 80.5%

June

16.2 9.8 4.4 31.7 0 81.9%

July

21.1 15.5 10.6 40.2 0 82.3%

August

20.4 16.5 12.6 51.4 0 81.2%

September

18.5 13.4 8.1 49.6 1 79.1%

October

15.1 8.8 4.5 93.3 0 78.9%

November

9.5 4.7 0.5 92.4 5 78.7%

December

6 0.2 -4.3 149.6 12 77.4%

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

37.4 27.3 17.8 6.5 14 77.5%

February

34.5 26.1 18.9 5.2 8 77.6%

March

36.9 28.8 21.7 3.5 6 78.6%

April

45 35.4 27.7 2.1 3 79.6%

May

52 42.3 32.4 2.4 1 80.5%

June

61.2 49.6 39.9 1.2 0 81.9%

July

70 59.9 51.1 1.6 0 82.3%

August

68.7 61.7 54.7 2 0 81.2%

September

65.3 56.1 46.6 2 1 79.1%

October

59.2 47.8 40.1 3.7 0 78.9%

November

49.1 40.5 32.9 3.6 5 78.7%

December

42.8 32.4 24.3 5.9 12 77.4%
June is the most draught at 1.2in / 31.7mm and January the month with the most rain around 6.5in / 165.5mm. The avg. temperature is around 61.7°F / 16.5°C, August is the hottest month in a year. February is the coolest with 26.1°F / -3.3°C avg. temperature.

Activities & POI in Saint John's

Type of Activity List
Marina for Sailing, Boat adventures, fishing St. John's
Attraction Trans-Canada Trail Mile Zero Km, Railway Coastal Museum, CN Rail 906, Commissariat House
Golf Course Admiral's Green Golf Course, Bally Haly Golf Club
You might also like