About St. Catherines
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COORDINATES
43.18966 N, -79.31605 E
Port Information
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Weather Forecast
Sat
9AM - 1PM
04 July 2026
W 7 knots increasing to 9 knots.
23°C
Calm sea
Chance of showers
Sat
1PM - 5PM
04 July 2026
- SW 9 knots decreasing to N 4 knots.
- 23°C
- Calm sea
UV Index: 6 - High- Chance of showers
Sat
5PM - 9PM
04 July 2026
- NE 4 knots increasing to 8 knots.
- 22 to 24°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Sat
9PM - 5AM
04 July 2026
- NE 5–8 knots.
- 18 to 23°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Sun
5AM - 9AM
05 July 2026
- NE 7 knots increasing to 9 knots.
- 18 to 21°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Sun
9AM - 1PM
05 July 2026
- NE 9 knots increasing to 13 knots.
- 20°C
- Calm sea
- UV Index: 3 - Moderate
- Cloudy
Sun
1PM - 5PM
05 July 2026
- NE 12–14 knots. Gusts up to 17 knots.
- 20 to 23°C
- NE 0.4m at 3s period
- UV Index: 4 - Moderate
- Cloudy
Sun
5PM - 9PM
05 July 2026
- NE 13 knots decreasing to 8 knots. Gusts up to 17 knots.
- 20 to 24°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Sun
9PM - 5AM
05 July 2026
- NE 5–10 knots.
- 17 to 22°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Mon
5AM - 9AM
06 July 2026
- NE 5–11 knots. Gusts up to 17 knots.
- Increasing from 18 to 22°C
- Calm sea
- Cloudy
Mon
9AM - 1PM
06 July 2026
- E 4–12 knots.
- 20 to 28°C
- Calm sea
- Partly cloudy
Mon
1PM - 5PM
06 July 2026
- NE 4–15 knots. Gusts up to 17 knots.
- 20 to 28°C
- NE 0.5m at 3s period
- Chance of showers
Mon
5PM - 9PM
06 July 2026
- E 5–15 knots.
- 21 to 27°C
- NE 0.5m at 3s period
- Partly cloudy
Mon
9PM - 5AM
06 July 2026
- E 5–12 knots. Gusts up to 18 knots.
- 18 to 23°C
- Calm sea
- Mostly fine
Tue
5AM - 9AM
07 July 2026
- E 6–9 knots. Gusts up to 17 knots.
- 18 to 23°C
- Calm sea
- Partly cloudy
Tue
9AM - 1PM
07 July 2026
- E 5–13 knots.
- 20 to 25°C
- Calm sea
- Cloudy
Tue
1PM - 5PM
07 July 2026
- NE 6–13 knots.
- 20 to 27°C
- NE 0.4m at 3s period
- Mostly fine
Tue
5PM - 9PM
07 July 2026
- NE 10 knots decreasing to 6 knots.
- 21 to 27°C
- Calm sea
- Mostly fine
Tue
9PM - 5AM
07 July 2026
- NE 3–7 knots veering S 3-7 knots.
- 19 to 21°C
- Calm sea
- Mostly fine
Wed
5AM - 9AM
08 July 2026
- S 4–6 knots.
- Increasing from 19 to 22°C
- Calm sea
- Mostly fine
Wed
9AM - 1PM
08 July 2026
- S 5 knots increasing to 8 knots.
- 20 to 27°C
- Calm sea
- Partly cloudy
Wed
1PM - 5PM
08 July 2026
- S 8 knots.
- 23 to 30°C
- Calm sea
- Partly cloudy
Wed
5PM - 9PM
08 July 2026
- S 6–9 knots.
- Decreasing from 28 to 24°C
- Calm sea
- Partly cloudy
Wed
9PM - 5AM
08 July 2026
- SW 8 knots decreasing to 5 knots. Gusts up to 18 knots.
- 19 to 23°C
- Calm sea
- Partly cloudy
Thu
5AM - 9AM
09 July 2026
- SW 2–9 knots.
- Increasing from 20 to 24°C
- Calm sea
- Partly cloudy
Thu
9AM - 1PM
09 July 2026
- W 5 knots increasing to 8 knots.
- Increasing from 25 to 30°C
- Calm sea
- Partly cloudy
Thu
1PM - 5PM
09 July 2026
- SW 3–11 knots.
- 27 to 35°C
- Calm sea
- Cloudy
Thu
5PM - 9PM
09 July 2026
- SW 1–15 knots.
- Decreasing from 30 to 23°C
- Calm sea
- Cloudy
Thu
9PM - 5AM
09 July 2026
- SW 1–9 knots.
- 16 to 24°C
- Calm sea
- Mostly fine
Fri
5AM - 9AM
10 July 2026
- W 2–7 knots veering NW 2-7 knots.
- Increasing from 17 to 23°C
- Calm sea
- Sunny
Fri
9AM - 1PM
10 July 2026
- W 3 knots increasing to 5 knots.
- Increasing from 24 to 33°C
- Sunny
Fri
1PM - 5PM
10 July 2026
- NW 2–11 knots veering NE 2-11 knots.
- 23 to 36°C
- Calm sea
- Sunny
Fri
5PM - 9PM
10 July 2026
- NE 8–12 knots backing W 8-12 knots. Gusts up to 20 knots.
- Decreasing from 31 to 25°C
- N 0.5m at 3s period
- Sunny
Fri
9PM - 5AM
10 July 2026
- W 5–8 knots. Gusts up to 20 knots.
- Decreasing from 24 to 17°C
- N 0.6m at 3s period
- Sunny
Sat
5AM - 9AM
11 July 2026
- NW 6 knots increasing to 10 knots. Gusts up to 18 knots.
- Increasing from 18 to 21°C
- N 0.5m at 3s period
- Sunny
Sat
9AM - 1PM
11 July 2026
- N 10 knots.
- 21°C
- Mostly fine
Sat
1PM - 5PM
11 July 2026
- N 7 knots increasing to 13 knots. Gusts up to 18 knots.
- 21°C
- Calm sea
- Partly cloudy
Sat
5PM - 9PM
11 July 2026
- N 13 knots decreasing to NW 8 knots. Gusts up to 18 knots.
- 20 to 22°C
- Calm sea
- Cloudy
Sat
9PM - 5AM
11 July 2026
- NW 5–13 knots.
- 17 to 21°C
- N 0.5m at 3s period
- Sunny
Sun
5AM - 9AM
12 July 2026
- NW 7–9 knots.
- 18°C
- N 0.4m at 3s period
- Mostly fine
Sun
9AM - 1PM
12 July 2026
- Light and variable.
- 20°C
- Mostly fine
Sun
1PM - 5PM
12 July 2026
- Light and variable.
- 22°C
- Calm sea
- Partly cloudy
Sun
5PM - 9PM
12 July 2026
- Light and variable.
- 20 to 25°C
- Calm sea
- Cloudy
Sun
9PM - 5AM
12 July 2026
- N 8 knots decreasing to NW 5 knots.
- 17 to 22°C
- Calm sea
- Partly cloudy
Mon
5AM - 9AM
13 July 2026
- NW 4 knots backing SW 4 knots.
- 17 to 21°C
- Calm sea
- Partly cloudy
Mon
9AM - 1PM
13 July 2026
- Light and variable.
- 18°C
- Cloudy
Mon
1PM - 5PM
13 July 2026
- S 8 knots decreasing to 5 knots.
- 19 to 25°C
- Calm sea
- Cloudy
Mon
5PM - 9PM
13 July 2026
- SE 4–8 knots.
- 20 to 23°C
- Calm sea
- Cloudy
Mon
9PM - 5AM
13 July 2026
- S 3–17 knots backing E 3-17 knots.
- 18 to 22°C
- SW 0.5m at 2s period
- Mostly fine