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Can I swim in St. John's in September? All information about water temperature in Atlantic Ocean in September. Historical data, comparison and analysis.
Analysis of historical data on water temperature in St. John's in September
#minimal
44°F
#average
55°F
#maximum
62°F
Average temperature in Atlantic Ocean in St. John's in September is 55°F. In general, this water temperature is unacceptable for swimming. But hardened people can afford to be in such water for 5-10 minutes.
Minimum water temperature in St. John's in September is 44°F, maximum - 62°F. In recent years, at the beginning of the month, the temperature value here is at around 57°F, and by the end of the month the water warms up to 50°F.
Average water temperature in the first decade is 57°F, in the middle of the month - 55°F, and at the end - 52°F.
Table of water temperature values in St. John's in September in recent years
| Day | 2024 | 2023 | 2022 | 2021 |
| 1 | 59°F | 59°F | 57°F | 57°F |
| 2 | 59°F | 57°F | 57°F | 57°F |
| 3 | 59°F | 57°F | 57°F | 55°F |
| 4 | 59°F | 55°F | 57°F | 55°F |
| 5 | 57°F | 57°F | 55°F | 55°F |
| 6 | 57°F | 57°F | 55°F | 55°F |
| 7 | 59°F | 57°F | 55°F | 55°F |
| 8 | 60°F | 57°F | 55°F | 55°F |
| 9 | 60°F | 55°F | 53°F | 57°F |
| 10 | 60°F | 55°F | 57°F | 57°F |
| 11 | 59°F | 55°F | 57°F | 57°F |
| 12 | 59°F | 55°F | 53°F | 57°F |
| 13 | 57°F | 55°F | 51°F | 57°F |
| 14 | 59°F | 55°F | 51°F | 55°F |
| 15 | 60°F | 55°F | 51°F | 55°F |
| 16 | 59°F | 55°F | 50°F | 55°F |
| 17 | 59°F | 55°F | 50°F | 55°F |
| 18 | 59°F | 53°F | 50°F | 55°F |
| 19 | 59°F | 53°F | 50°F | 55°F |
| 20 | 59°F | 55°F | 48°F | 55°F |
| 21 | 59°F | 55°F | 48°F | 55°F |
| 22 | 59°F | 51°F | 48°F | 55°F |
| 23 | 59°F | 53°F | 48°F | 53°F |
| 24 | 57°F | 55°F | 46°F | 55°F |
| 25 | 57°F | 53°F | 46°F | 55°F |
| 26 | 57°F | 53°F | 46°F | 53°F |
| 27 | 55°F | 53°F | 44°F | 53°F |
| 28 | 55°F | 53°F | 44°F | 53°F |
| 29 | 53°F | 53°F | 44°F | 53°F |
| 30 | 53°F | 51°F | 44°F | 51°F |
Water temperature in neighboring resorts
Details of the water temperature today in St. John's and forecast for the next week, see the link:
seatemperature.net/current/canada/st.-johns-newfoundland-and-labrador-canada-sea-temperature
