Sea temperature in St. John's, Newfoundland and Labrador in Canada real-time sea temperature, 7-day forecast and historical data
Do you want to swim in the sea in St. John's, Newfoundland and Labrador in Canada today? First, check if the sea temperature is appropriate for swimming with our data that is updated daily, and our water temperature forecast in St. John's, Newfoundland and Labrador for the next few days.
Temperature of the sea in St. John's, Newfoundland and Labrador today
Currently, the sea water temperature in St. John's, Newfoundland and Labrador is at most:
56°F
(or 2° higher than the seasonal norm)
Other useful information about today's weather:
- Outside temperature: 41°F to 50°F
- Patchy rain nearby
- The wind is blowing at 34.2mph
- Wave height is 13.8ft on average, and 7.2ft at most, with a frequency of a wave every 11 seconds.
- More details on the sea weather of St. John's, Newfoundland and Labrador page
This report was generated on 22/09/2023
7 day sea water temperature forecast in St. John's, Newfoundland and Labrador
Discover the weather forecast for the water temperature in St. John's, Newfoundland and Labrador for the next 7 days below. You will also find the 7-day forecast for outside temperature and wave height. For more details, hour by hour, see the chart below the listing.
Friday 22 September 2023

sea temperature:
56°F
Wave height: 15.4ft
Outside temperature: 41°F to 50°F
Saturday 23 September 2023

sea temperature:
52°F
Wave height: 10.2ft
Outside temperature: 47°F to 61°F
Sunday 24 September 2023

sea temperature:
52°F
Wave height: 9.2ft
Outside temperature: 49°F to 58°F
Monday 25 September 2023

sea temperature:
56°F
Wave height: 8.5ft
Outside temperature: 47°F to 52°F
Chart of water temperature variation over 7 days
History of water temperature in St. John's, Newfoundland and Labrador
We record the water temperature daily in St. John's, Newfoundland and Labrador In this way, we can provide you with the average sea temperature in St. John's, Newfoundland and Labrador over the last 24 months and a more detailed chart for recent months.
Monthly sea temperature averages over 24 months
- september 2023
- Average water temperature: 55°F (52°F to 58°F)
- august 2023
- Average water temperature: 54°F (52°F to 58°F)
- july 2023
- Average water temperature: 50°F (45°F to 56°F)
- june 2023
- Average water temperature: 40°F (37°F to 45°F)
- may 2023
- Average water temperature: 34°F (32°F to 38°F)
- april 2023
- Average water temperature: 32°F (32°F)
- march 2023
- Average water temperature: 32°F (32°F)
- february 2023
- Average water temperature: 33°F (32°F to 34°F)
- january 2023
- Average water temperature: 35°F (34°F to 36°F)
- december 2022
- Average water temperature: 36°F (34°F to 40°F)
- november 2022
- Average water temperature: 44°F (36°F to 54°F)
- october 2022
- Average water temperature: 52°F (49°F to 58°F)
- september 2022
- Average water temperature: 58°F (52°F to 63°F)
- august 2022
- Average water temperature: 56°F (52°F to 61°F)
- july 2022
- Average water temperature: 51°F (50°F to 56°F)
- june 2022
- Average water temperature: 43°F (38°F to 50°F)
- may 2022
- Average water temperature: 39°F (36°F to 43°F)
- april 2022
- Average water temperature: 34°F (32°F to 36°F)
- march 2022
- Average water temperature: 32°F (32°F)
- february 2022
- Average water temperature: 32°F (32°F to 34°F)
- january 2022
- Average water temperature: 34°F (32°F to 34°F)
- december 2021
- Average water temperature: 40°F (34°F to 43°F)
- november 2021
- Average water temperature: 45°F (41°F to 47°F)
- october 2021
- Average water temperature: 48°F (45°F to 50°F)