Current sea water temperature:
+48.2°F
| Minimum sea water temperature in June: | 68.2°F |
| Maximum sea water temperature in June: | 46.0°F |
| Average sea water temperature in June: | 54.8°F |
| more information | |
14 days
forecast
forecast
| Oshawa |
monthly
weather
weather
| Oshawa |
Sea water temperature for the last 10 days:
| June 26 | 48.2°F | June 21 | 46.2°F |
| June 25 | 48.0°F | June 20 | 46.2°F |
| June 24 | 47.3°F | June 19 | 46.6°F |
| June 23 | 46.4°F | June 18 | 48.9°F |
| June 22 | 46.0°F | June 17 | 48.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Oshawa?
Based on the data about daily sea water temperature for the last three years the warmest sea in Oshawa was noticed in August, September and July.
Monthly Sea Temperatures in Oshawa, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.1°F. The highest and lowest sea temperatures during the month were 77.7°F and 69.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 65.2°F. The highest and lowest sea temperatures during the month were 68.0°F and 57.6°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 67.1°F. The highest and lowest sea temperatures during the month were 74.5°F and 60.4°F.
current
weather
weather
| Oshawa |
weather in
July
July
| Oshawa |
Best time for vacation in Oshawa
Oshawa on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Oshawa
Local time: 02:02
June 27, saturday
0300
61°F
S
6 mph
6 mph
0600
61°F
S
6 mph
6 mph
0900
70°F
SW
4 mph
4 mph
1200
73°F
W
3 mph
3 mph
1500
70°F
N
6 mph
6 mph
1800
70°F
NE
2 mph
2 mph
2100
64°F
SE
1 mph
1 mph
June 28, sunday
0000
61°F
S
4 mph
4 mph
