About St. Catherines
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COORDINATES
43.18966 N, -79.31605 E
Port Information
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Weather Forecast
Wed
9AM - 1PM
08 July 2026
N 3 knots increasing to 7 knots.
23°C
Calm sea
Sunny
Wed
1PM - 5PM
08 July 2026
- N 3–6 knots veering SE 3-6 knots.
- 24 to 27°C
- Calm sea
UV Index: 8 - Very High- Mostly fine
Wed
5PM - 9PM
08 July 2026
- S 5 knots increasing to SW 9 knots.
- 24 to 27°C
- Calm sea
- UV Index: 0 - Low
- Sunny
Wed
9PM - 5AM
08 July 2026
- SW 6–11 knots.
- 20 to 25°C
- Calm sea
- UV Index: 0 - Low
- Sunny
Thu
5AM - 9AM
09 July 2026
- SW 6–8 knots.
- 20 to 24°C
- Calm sea
- UV Index: 0 - Low
- Mostly fine
Thu
9AM - 1PM
09 July 2026
- W 6–8 knots.
- 24°C
- Calm sea
- UV Index: 8 - Very High
- Mostly fine
Thu
1PM - 5PM
09 July 2026
- W 6 knots increasing to 11 knots.
- 24°C
- Calm sea
- UV Index: 8 - Very High
- Chance of showers
Thu
5PM - 9PM
09 July 2026
- W 11 knots decreasing to 5 knots.
- 22 to 25°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Thu
9PM - 5AM
09 July 2026
- W 3–12 knots.
- 20 to 24°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Fri
5AM - 9AM
10 July 2026
- NW 1–10 knots veering N 1-10 knots.
- 20 to 22°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Fri
9AM - 1PM
10 July 2026
- NW 0–9 knots.
- Increasing from 20 to 25°C
- Calm sea
- UV Index: 3 - Moderate
- Partly cloudy
Fri
1PM - 5PM
10 July 2026
- Light and variable.
- 23 to 29°C
- Calm sea
- Mostly fine
Fri
5PM - 9PM
10 July 2026
- SW 1–7 knots.
- Decreasing from 26 to 22°C
- Calm sea
- Sunny
Fri
9PM - 5AM
10 July 2026
- SW 1–7 knots veering NE 1-7 knots.
- 15 to 22°C
- Calm sea
- Sunny
Sat
5AM - 9AM
11 July 2026
- NE 4–10 knots.
- Increasing from 18 to 23°C
- Calm sea
- Mostly fine
Sat
9AM - 1PM
11 July 2026
- NE 7–11 knots.
- 22 to 27°C
- NE 0.4m at 3s period
- Partly cloudy
Sat
1PM - 5PM
11 July 2026
- E 10 knots decreasing to 7 knots.
- 22 to 30°C
- Calm sea
- Partly cloudy
Sat
5PM - 9PM
11 July 2026
- E 7 knots decreasing to 3 knots.
- Decreasing from 28 to 23°C
- Calm sea
- Sunny
Sat
9PM - 5AM
11 July 2026
- NE 1–8 knots.
- Decreasing from 22 to 16°C
- Calm sea
- Sunny
Sun
5AM - 9AM
12 July 2026
- NE 5–9 knots.
- Increasing from 15 to 23°C
- Calm sea
- Sunny
Sun
9AM - 1PM
12 July 2026
- E 5–9 knots.
- Increasing from 22 to 27°C
- Calm sea
- Sunny
Sun
1PM - 5PM
12 July 2026
- NE 7–9 knots veering SE 7-9 knots.
- 23 to 32°C
- Calm sea
- Sunny
Sun
5PM - 9PM
12 July 2026
- SE 7 knots decreasing to 5 knots.
- 24 to 32°C
- Calm sea
- Sunny
Sun
9PM - 5AM
12 July 2026
- Light and variable.
- Decreasing from 25 to 18°C
- Calm sea
- Sunny
Mon
5AM - 9AM
13 July 2026
- SW 3 knots increasing to 8 knots.
- Increasing from 17 to 25°C
- Calm sea
- Sunny
Mon
9AM - 1PM
13 July 2026
- SW 3–13 knots.
- Increasing from 25 to 33°C
- Calm sea
- Mostly fine
Mon
1PM - 5PM
13 July 2026
- SW 3–16 knots.
- 27 to 39°C
- Calm sea
- Mostly fine
Mon
5PM - 9PM
13 July 2026
- S 3–16 knots. Gusts up to 18 knots.
- 23 to 37°C
- Calm sea
- Partly cloudy
Mon
9PM - 5AM
13 July 2026
- SW 2–13 knots. Gusts up to 19 knots.
- 18 to 32°C
- Calm sea
- Cloudy
Tue
5AM - 9AM
14 July 2026
- SW 0–12 knots. Gusts up to 17 knots.
- Increasing from 22 to 27°C
- Calm sea
- Cloudy
Tue
9AM - 1PM
14 July 2026
- SW 8 knots increasing to 11 knots.
- Increasing from 29 to 39°C
- Cloudy
Tue
1PM - 5PM
14 July 2026
- W 11–13 knots. Gusts up to 21 knots.
- 29 to 45°C
- Calm sea
- Cloudy
Tue
5PM - 9PM
14 July 2026
- SW 9–17 knots. Gusts up to 24 knots.
- Decreasing from 36 to 29°C
- Calm sea
- Cloudy
Tue
9PM - 5AM
14 July 2026
- SW 9–15 knots. Gusts up to 31 knots.
- 25 to 32°C
- W 0.4m at 2s period
- Cloudy
Wed
5AM - 9AM
15 July 2026
- W 8–11 knots. Gusts up to 24 knots.
- 23 to 30°C
- Calm sea
- Cloudy
Wed
9AM - 1PM
15 July 2026
- E 7 knots.
- 22°C
- Sunny
Wed
1PM - 5PM
15 July 2026
- S 10 knots decreasing to 5 knots.
- 22 to 28°C
- Calm sea
- Sunny
Wed
5PM - 9PM
15 July 2026
- S 4 knots increasing to N 8 knots.
- 22 to 26°C
- Calm sea
- Sunny
Wed
9PM - 5AM
15 July 2026
- N 5–8 knots.
- 19 to 23°C
- N 0.4m at 3s period
- Sunny
Thu
5AM - 9AM
16 July 2026
- NW 8 knots veering NE 8 knots.
- Increasing from 19 to 22°C
- Calm sea
- Mostly fine
Thu
9AM - 1PM
16 July 2026
- E 12 knots.
- 20°C
- Sunny
Thu
1PM - 5PM
16 July 2026
- E 9 knots decreasing to 7 knots.
- Decreasing from 22 to 19°C
- Calm sea
- Chance of showers
Thu
5PM - 9PM
16 July 2026
- NE 7 knots decreasing to E 4 knots.
- Increasing from 19 to 22°C
- Calm sea
- Chance of showers
Thu
9PM - 5AM
16 July 2026
- N 6–8 knots.
- 17 to 24°C
- Calm sea
- Mostly fine
Fri
5AM - 9AM
17 July 2026
- NW 6–8 knots.
- Increasing from 17 to 20°C
- Calm sea
- Chance of showers
Fri
9AM - 1PM
17 July 2026
- NW 9 knots.
- 20°C
- Sunny
Fri
1PM - 5PM
17 July 2026
- W 6 knots increasing to NW 14 knots. Gusts up to 16 knots.
- Decreasing from 24 to 20°C
- Calm sea
- Cloudy
Fri
5PM - 9PM
17 July 2026
- NW 14 knots decreasing to 11 knots. Gusts up to 16 knots.
- Increasing from 20 to 23°C
- Calm sea
- Cloudy
Fri
9PM - 5AM
17 July 2026
- NW 13–17 knots.
- 14 to 28°C
- SW 0.4m at 2s period
- Partly cloudy