Current sea water temperature:
+63.7°F
| Minimum sea water temperature in October: | 68.4°F |
| Maximum sea water temperature in October: | 43.5°F |
| Average sea water temperature in October: | 58.7°F |
| more information | |
14 days
forecast
forecast
| Oshawa |
monthly
weather
weather
| Oshawa |
Sea water temperature for the last 10 days:
| October 5 | 63.7°F | September 30 | 64.8°F |
| October 4 | 64.0°F | September 29 | 64.9°F |
| October 3 | 64.6°F | September 28 | 65.5°F |
| October 2 | 66.2°F | September 27 | 65.5°F |
| October 1 | 66.6°F | September 26 | 66.0°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 68.2°F. The highest and lowest sea temperatures during the month were 73.2°F and 57.9°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 66.5°F. The highest and lowest sea temperatures during the month were 70.3°F and 60.1°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 62.9°F. The highest and lowest sea temperatures during the month were 72.0°F and 53.8°F.
current
weather
weather
| Oshawa |
weather in
October
October
| Oshawa |
Best time for vacation in Oshawa
Oshawa on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Oshawa
Local time: 16:10
October 05, monday
1800
50°F
SE
18 mph
18 mph
2100
43°F
SE
7 mph
7 mph
October 06, tuesday
0000
36°F
SE
7 mph
7 mph
0300
36°F
SE
7 mph
7 mph
0600
34°F
SE
7 mph
7 mph
0900
43°F
SE
9 mph
9 mph
1200
54°F
E
7 mph
7 mph
1500
57°F
NE
9 mph
9 mph
