About St. Catherines
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COORDINATES
43.18966 N, -79.31605 E
Port Information
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Weather Forecast
Mon
9AM - 1PM
08 June 2026
NE 6 knots increasing to 15 knots. Gusts up to 18 knots.
18°C
Calm sea
Sunny
Mon
1PM - 5PM
08 June 2026
- NE 14 knots decreasing to 10 knots. Gusts up to 16 knots.
- 14 to 19°C
- Calm sea
UV Index: 8 - Very High- Mostly fine
Mon
5PM - 9PM
08 June 2026
- NE 11 knots decreasing to 7 knots.
- 14 to 19°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Mon
9PM - 5AM
08 June 2026
- E 6 knots decreasing to 2 knots.
- 13 to 18°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Tue
5AM - 9AM
09 June 2026
- Light and variable.
- 13 to 19°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Tue
9AM - 1PM
09 June 2026
- SW 4–7 knots backing N 4-7 knots.
- 14 to 20°C
- Calm sea
- UV Index: 8 - Very High
- Cloudy
Tue
1PM - 5PM
09 June 2026
- NE 7 knots decreasing to S 5 knots.
- 16 to 21°C
- Calm sea
- UV Index: 8 - Very High
- Cloudy
Tue
5PM - 9PM
09 June 2026
- S 5 knots increasing to E 8 knots.
- 16 to 21°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Tue
9PM - 5AM
09 June 2026
- S 4–11 knots.
- 16 to 19°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Wed
5AM - 9AM
10 June 2026
- SW 12 knots decreasing to 10 knots.
- 17 to 20°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Wed
9AM - 1PM
10 June 2026
- SW 9 knots increasing to 12 knots.
- Increasing from 20 to 25°C
- Calm sea
- Partly cloudy
Wed
1PM - 5PM
10 June 2026
- SW 12 knots. Gusts up to 17 knots.
- 20 to 29°C
- Calm sea
- Mostly fine
Wed
5PM - 9PM
10 June 2026
- SW 12 knots decreasing to 8 knots. Gusts up to 17 knots.
- Decreasing from 26 to 23°C
- Calm sea
- Sunny
Wed
9PM - 5AM
10 June 2026
- SW 4–8 knots. Gusts up to 16 knots.
- 18 to 22°C
- Calm sea
- Mostly fine
Thu
5AM - 9AM
11 June 2026
- SW 8 knots increasing to 11 knots. Gusts up to 19 knots.
- Increasing from 19 to 23°C
- Calm sea
- Partly cloudy
Thu
9AM - 1PM
11 June 2026
- SW 8–11 knots.
- 19 to 35°C
- Calm sea
- Cloudy
Thu
1PM - 5PM
11 June 2026
- SW 6–10 knots.
- 20 to 37°C
- Calm sea
- Cloudy
Thu
5PM - 9PM
11 June 2026
- SW 7–11 knots. Gusts up to 17 knots.
- 21 to 35°C
- Calm sea
- Partly cloudy
Thu
9PM - 5AM
11 June 2026
- SW 5–8 knots. Gusts up to 17 knots.
- 19 to 28°C
- Calm sea
- Mostly fine
Fri
5AM - 9AM
12 June 2026
- SW 7–10 knots. Gusts up to 19 knots.
- Increasing from 20 to 24°C
- Calm sea
- Partly cloudy
Fri
9AM - 1PM
12 June 2026
- SW 10–12 knots.
- 21 to 33°C
- Calm sea
- Partly cloudy
Fri
1PM - 5PM
12 June 2026
- SW 9–12 knots. Gusts up to 16 knots.
- 19 to 33°C
- Calm sea
- Rain
Fri
5PM - 9PM
12 June 2026
- W 10 knots decreasing to NW 6 knots.
- 19 to 27°C
- Calm sea
- Chance of showers
Fri
9PM - 5AM
12 June 2026
- W 5–9 knots.
- 15 to 21°C
- Calm sea
- Chance of showers
Sat
5AM - 9AM
13 June 2026
- W 5–10 knots veering NW 5-10 knots.
- Increasing from 15 to 21°C
- Calm sea
- Sunny
Sat
9AM - 1PM
13 June 2026
- NW 2–9 knots.
- Increasing from 21 to 27°C
- Calm sea
- Sunny
Sat
1PM - 5PM
13 June 2026
- W 7 knots increasing to 13 knots. Gusts up to 19 knots.
- 21 to 33°C
- Calm sea
- Sunny
Sat
5PM - 9PM
13 June 2026
- W 14 knots decreasing to 7 knots. Gusts up to 20 knots.
- Decreasing from 27 to 22°C
- Calm sea
- Sunny
Sat
9PM - 5AM
13 June 2026
- SW 5 knots increasing to 8 knots.
- 13 to 23°C
- Calm sea
- Sunny
Sun
5AM - 9AM
14 June 2026
- W 3–13 knots. Gusts up to 19 knots.
- Increasing from 15 to 20°C
- Calm sea
- Partly cloudy
Sun
9AM - 1PM
14 June 2026
- SE 5–16 knots veering SW 5-16 knots. Gusts up to 20 knots.
- Increasing from 21 to 29°C
- Partly cloudy
Sun
1PM - 5PM
14 June 2026
- SW 3–16 knots. Gusts up to 19 knots.
- 17 to 32°C
- Calm sea
- Cloudy
Sun
5PM - 9PM
14 June 2026
- SW 5–16 knots.
- 16 to 32°C
- Calm sea
- Partly cloudy
Sun
9PM - 5AM
14 June 2026
- W 0–8 knots veering NE 0-8 knots.
- 13 to 25°C
- Calm sea
- Cloudy
Mon
5AM - 9AM
15 June 2026
- SW 4–8 knots backing S 4-8 knots.
- 12 to 19°C
- Calm sea
- Cloudy
Mon
9AM - 1PM
15 June 2026
- E 8 knots.
- 13°C
- Cloudy
Mon
1PM - 5PM
15 June 2026
- E 10 knots increasing to 19 knots. Gusts up to 24 knots.
- 13°C
- Calm sea
- Cloudy
Mon
5PM - 9PM
15 June 2026
- NE 19 knots decreasing to 13 knots. Gusts up to 24 knots.
- 14°C
- Calm sea
- Cloudy
Mon
9PM - 5AM
15 June 2026
- E 10 knots increasing to S 17 knots. Gusts up to 29 knots.
- 14 to 17°C
- Calm sea
- Rain
Tue
5AM - 9AM
16 June 2026
- S 17 knots decreasing to 12 knots. Gusts up to 29 knots.
- 15 to 17°C
- Calm sea
- Rain
Tue
9AM - 1PM
16 June 2026
- SW 25 knots.
- 16°C
- Cloudy
Tue
1PM - 5PM
16 June 2026
- SW 13 knots increasing to 23 knots. Gusts up to 35 knots.
- 15 to 18°C
- Calm sea
- Mostly fine
Tue
5PM - 9PM
16 June 2026
- SW 23 knots decreasing to 13 knots. Gusts up to 35 knots.
- 16 to 19°C
- Calm sea
- Sunny
Tue
9PM - 5AM
16 June 2026
- W 6–18 knots. Gusts up to 21 knots.
- 13 to 17°C
- Calm sea
- Mostly fine
Wed
5AM - 9AM
17 June 2026
- W 15 knots decreasing to 8 knots. Gusts up to 24 knots.
- 13 to 16°C
- Calm sea
- Partly cloudy
Wed
9AM - 1PM
17 June 2026
- S 8 knots.
- 15°C
- Sunny
Wed
1PM - 5PM
17 June 2026
- S 8 knots backing SE 8 knots.
- 16 to 18°C
- Calm sea
- Cloudy
Wed
5PM - 9PM
17 June 2026
- S 8 knots increasing to 12 knots.
- 16 to 19°C
- Calm sea
- Cloudy
Wed
9PM - 5AM
17 June 2026
- SW 6 knots increasing to 13 knots. Gusts up to 24 knots.
- 16°C
- Calm sea
- Partly cloudy