Saint John — Water Temperature in June
Water Temperature Range
7°C
minimum
9°C
average
13°C
maximum
Water Temperature Chart for Month
The chart shows the average daily water temperature for each day of the month based on historical data.
Table of Water Temperatures by Day of the Month for Previous Years
| Day | 2026 | 2025 | 2024 | 2023 |
|---|---|---|---|---|
| JUN 1 | -10°C | 9°C | 7°C | 9°C |
| JUN 2 | 8°C | 8°C | 7°C | 9°C |
| JUN 3 | 9°C | 8°C | 7°C | 9°C |
| JUN 4 | 9°C | 9°C | 8°C | 9°C |
| JUN 5 | 10°C | 9°C | 7°C | 9°C |
| JUN 6 | 10°C | 9°C | 7°C | 10°C |
| JUN 7 | 9°C | 9°C | 8°C | 10°C |
| JUN 8 | 9°C | 9°C | 8°C | 10°C |
| JUN 9 | -10°C | 9°C | 8°C | 10°C |
| JUN 10 | 9°C | 9°C | 8°C | 11°C |
| JUN 11 | 9°C | 9°C | 8°C | 11°C |
| JUN 12 | 9°C | 9°C | 8°C | 10°C |
| JUN 13 | 11°C | 9°C | 9°C | 10°C |
| JUN 14 | 10°C | 10°C | 9°C | 11°C |
| JUN 15 | 9°C | 9°C | 9°C | 11°C |
| JUN 16 | 11°C | 9°C | 8°C | 11°C |
| JUN 17 | 11°C | 9°C | 8°C | 11°C |
| JUN 18 | 9°C | 10°C | 9°C | 12°C |
| JUN 19 | 11°C | 10°C | 9°C | 11°C |
| JUN 20 | 11°C | 10°C | 9°C | 11°C |
| JUN 21 | 11°C | 10°C | 9°C | 12°C |
| JUN 22 | 11°C | 10°C | 9°C | 12°C |
| JUN 23 | 12°C | 10°C | 9°C | 12°C |
| JUN 24 | 11°C | 10°C | 9°C | 12°C |
| JUN 25 | 10°C | 10°C | 9°C | 12°C |
| JUN 26 | 11°C | 10°C | 9°C | 12°C |
| JUN 27 | 12°C | 11°C | 10°C | 12°C |
| JUN 28 | 10°C | 11°C | 9°C | 12°C |
| JUN 29 | 12°C | 11°C | 9°C | 12°C |
| JUN 30 | 12°C | 11°C | 10°C | 13°C |
June: Climate and Swimming Opportunities
Average Night Air Temperature
9°C
Average Day Air Temperature
17°C
Precipitation Amount per Month
66 mm
Number of Rainy Days
14
Daylight per Day
17 hrs
Sunshine per Day
6 hrs
Average Wind Speed
17 km/h
Average Humidity
84%
At such water and air temperatures, swimming feels icy and can be a shock to the body. If you go in at all, keep it extremely short and warm up immediately afterward.