Measurements:
°C
°F
Kingston
22°F
E 6 mph
Feels like: 12°F
Precip: 100%
World Resorts Canada Kingston Weather

Kingston Sea Water Temperature

Current Sea Water Temperature:
+38.4°F
Maximum Sea Water Temperature in December: 47.6°F
Minimum Sea Water Temperature in December: 38.0°F
Average water temperature in December: 42.5°F

Sea Water Temperature for the Last 10 Days:

December 13 38.4°F December 08 41.6°F
December 12 39.8°F December 07 41.6°F
December 11 40.0°F December 06 41.0°F
December 10 39.2°F December 05 41.4°F
December 09 39.6°F December 04 41.4°F

When is the Warmest Sea for Kingston?

According to our data for the last three years for Kingston the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Kingston was 75.8°F. The maximum and minimum values were 70.4°F and 79.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Kingston was 74.8°F. The maximum and minimum values were 67.0°F and 79.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Kingston was 69.1°F. The maximum and minimum values were 67.0°F and 71.0°F respectively.

Best Time to Visit Kingston
The most sunny months:
September 12 days
August 12 days
July 11 days
The most warm months:
July 79.2 °F
August 77.6 °F
June 72.2 °F
Warmest sea temperature:
August 76.3 °F
July 74.3 °F
September 71.3 °F
The most cold months:
January 23.0 °F
February 24.0 °F
December 32.8 °F
The most rainy months:
July 3 days
October 3 days
March 2 days
The most windy months:
November 11 mph
December 11 mph
March 10 mph

Kingston on the Weather Map

Canada Resorts:
NAME
Halifax +22
Kingston +22
Moncton +12
Montreal +12
Niagara Falls +18
Ottawa 0
Prince Edward Island +20
Quebec +10
St. John's +28
Sydney +24
Toronto +22
Vancouver +46
Victoria +48
Winnipeg -18
Yellowknife -12
24 Hours Weather Forecast
Kingston
Local time: 04:22
13 dec, saturday
0600 26°F
NE
14 mph
0900 28°F
N
17 mph
1200 30°F
NE
22 mph
1500 30°F
E
20 mph
1800 26°F
E
14 mph
2100 20°F
E
14 mph
14 dec, sunday
0000 18°F
E
12 mph
0300 16°F
SE
9 mph