World Resorts Canada Saint John Weather

Saint John Sea Temperature in April

Average sea water temperature in April:
+38.5°F
Minimum sea water temperature in April: 43.0°F
Maximum sea water temperature in April: 34.3°F

Daily sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 37.1°F. The highest and lowest sea temperatures during the month were 41.2°F and 34.3°F.

Monthly sea water temperature in Saint John, °F

Which Canada resorts have warmest sea in April?

Place name April 2025 April 2024
Surrey 51.4°F 50.4°F
Nanaimo 49.8°F 49.1°F
Tofino 49.5°F 49.7°F
North Vancouver 49.4°F 49.2°F
Vancouver 49.3°F 49.1°F
Victoria 47.5°F 48.0°F
Windsor 44.0°F 46.2°F
Oshawa 39.6°F 40.9°F
Montreal 39.5°F 42.8°F
Hamilton 39.4°F 40.8°F
Mississauga 39.2°F 41.2°F
Saint Andrews 39.0°F 41.0°F
Kingston 38.8°F 40.9°F
Toronto 38.8°F 40.8°F
Lunenburg 38.5°F 40.1°F
Niagara-on-the-Lake 37.8°F 41.6°F
Niagara Falls 37.8°F 39.8°F
Halifax 37.5°F 39.3°F
Summerside 37.2°F 39.3°F
Saint John 37.1°F 39.2°F

Best time for vacation in Saint John

Sunniest months:
September 10 days
October 10 days
August 9 days
Warmest months:
July 72.6 °F
August 71.8 °F
June 68.1 °F
Warmest sea temp:
August 59.6 °F
September 58.4 °F
July 56.9 °F
Coldest months:
January 25.6 °F
February 25.9 °F
December 33.3 °F
Rainiest months:
July 3 days
October 3 days
December 2 days
Windiest months:
March 8.8 mph
February 8.6 mph
December 8.5 mph

Saint John on a weather map

Saint John
+5°F
SE 14 mph
Feels like: -11°F
Precip.: 0%
Places in Canada:
Name
°F
+41°F
+45°F
+12°F
+12°F
-8°F
+7°F
-2°F
+3°F
+12°F
-6°F
+25°F
+36°F
+21°F
+16°F
24 Hours Forecast
Saint John
Local time: 06:31
December 05, friday
0900
7°F
SE
12 mph
1200
16°F
SE
13 mph
1500
21°F
E
11 mph
1800
21°F
E
7 mph
2100
19°F
E
5 mph
December 06, saturday
0000
18°F
SE
3 mph
0300
18°F
SE
2 mph
0600
18°F
S
2 mph
Units of measurement: °C / °F