Measurements:
°C
°F
CURRENT WEATHER
09:57
Saint John
58°F
W 11 mph
Feels like: 56°F
Precip: 0%
World Resorts Canada Saint John Weather

7 Day Weather Forecast

05.18
sat
DAY
60°F
W 11 mph
precip
0%
NIGHT
50°F
W 9 mph
precip
100%
05.19
sun
DAY
52°F
W 9 mph
precip
100%
NIGHT
46°F
SW 4 mph
precip
0%
05.20
mon
DAY
64°F
NW 6 mph
precip
0%
NIGHT
48°F
NE 5 mph
precip
0%
05.21
tue
DAY
64°F
NE 11 mph
precip
0%
NIGHT
48°F
N 5 mph
precip
100%
05.22
wed
DAY
62°F
NE 7 mph
precip
0%
NIGHT
48°F
N 8 mph
precip
0%
05.23
thu
DAY
58°F
N 13 mph
precip
0%
NIGHT
50°F
N 7 mph
precip
25%
05.24
fri
DAY
64°F
NE 12 mph
precip
0%
NIGHT
46°F
SE 10 mph
precip
0%

Saint John Sea Water Temperature in May, °F

Select Year: 2023 2022 2021

The average sea surface temperature in May 2023 for Saint John was 7.2°F. The maximum and minimum values were 5.2°F and 9.5°F respectively.

Saint John on the Weather Map

Best Time to Visit Saint John
The most sunny months:
September 10 days
October 9 days
May 9 days
The most warm months:
July 77.7 °F
August 76.1 °F
June 71.8 °F
Warmest sea temperature:
August 60.7 °F
September 59.2 °F
July 57.6 °F
The most cold months:
January 22.6 °F
February 23.2 °F
December 31.3 °F
The most rainy months:
July 4 days
August 3 days
March 3 days
The most windy months:
March 9 mph
December 8 mph
February 8 mph
more details