About St. Catherines
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COORDINATES
43.18966 N, -79.31605 E
Port Information
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Weather Forecast
Wed
5AM - 9AM
29 April 2026
NE 6 knots.
3 to 6°C
Calm sea
UV Index: 0 - Low
Cloudy
Wed
9AM - 1PM
29 April 2026
- N 7 knots increasing to 9 knots.
- 3 to 6°C
- Calm sea
- UV Index: 1 - Low
- Cloudy
Wed
1PM - 5PM
29 April 2026
- N 8–11 knots. Gusts up to 18 knots.
- 3 to 6°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Wed
5PM - 9PM
29 April 2026
- N 8–12 knots backing NW 8-12 knots. Gusts up to 17 knots.
- 3 to 6°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Wed
9PM - 5AM
29 April 2026
- NW 8–12 knots. Gusts up to 17 knots.
- 2 to 6°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Thu
5AM - 9AM
30 April 2026
- NW 8–13 knots. Gusts up to 18 knots.
- 2 to 7°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Thu
9AM - 1PM
30 April 2026
- NW 9 knots decreasing to 7 knots.
- 5 to 8°C
- Calm sea
- UV Index: 6 - High
- Cloudy
Thu
1PM - 5PM
30 April 2026
- W 5 knots increasing to 8 knots.
- 6 to 8°C
- Calm sea
- UV Index: 6 - High
- Cloudy
Thu
5PM - 9PM
30 April 2026
- W 10 knots decreasing to 7 knots.
- 6 to 8°C
- Calm sea
- UV Index: 0 - Low
- Partly cloudy
Thu
9PM - 5AM
30 April 2026
- NW 4–7 knots.
- 0 to 6°C
- Calm sea
- Sunny
Fri
5AM - 9AM
01 May 2026
- W 4–8 knots.
- 0 to 5°C
- Calm sea
- Mostly fine
Fri
9AM - 1PM
01 May 2026
- W 5–8 knots.
- Increasing from 4 to 7°C
- Calm sea
- Partly cloudy
Fri
1PM - 5PM
01 May 2026
- W 6 knots increasing to 10 knots.
- 6 to 8°C
- Calm sea
- Cloudy
Fri
5PM - 9PM
01 May 2026
- W 5–11 knots.
- Decreasing from 8 to 4°C
- Calm sea
- Partly cloudy
Fri
9PM - 5AM
01 May 2026
- W 5–11 knots.
- −1 to 6°C
- Calm sea
- Mostly fine
Sat
5AM - 9AM
02 May 2026
- W 7–9 knots.
- −1 to 4°C
- Calm sea
- Sunny
Sat
9AM - 1PM
02 May 2026
- W 2–8 knots.
- Increasing from 4 to 7°C
- Calm sea
- Partly cloudy
Sat
1PM - 5PM
02 May 2026
- W 4–8 knots.
- 6 to 8°C
- Calm sea
- Cloudy
Sat
5PM - 9PM
02 May 2026
- NW 6–8 knots. Gusts up to 16 knots.
- Decreasing from 8 to 5°C
- Calm sea
- Cloudy
Sat
9PM - 5AM
02 May 2026
- W 5–8 knots.
- 0 to 5°C
- Calm sea
- Mostly fine
Sun
5AM - 9AM
03 May 2026
- W 6–8 knots.
- Increasing from 1 to 4°C
- Calm sea
- Mostly fine
Sun
9AM - 1PM
03 May 2026
- W 8–10 knots.
- Increasing from 5 to 9°C
- Calm sea
- Partly cloudy
Sun
1PM - 5PM
03 May 2026
- W 9–12 knots.
- 8 to 10°C
- Calm sea
- Partly cloudy
Sun
5PM - 9PM
03 May 2026
- W 11 knots decreasing to 6 knots.
- Decreasing from 11 to 7°C
- Calm sea
- Partly cloudy
Sun
9PM - 5AM
03 May 2026
- W 1–14 knots. Gusts up to 17 knots.
- −1 to 8°C
- Calm sea
- Partly cloudy
Mon
5AM - 9AM
04 May 2026
- SW 4–15 knots.
- Increasing from 3 to 7°C
- Calm sea
- Cloudy
Mon
9AM - 1PM
04 May 2026
- SW 8 knots increasing to 13 knots. Gusts up to 19 knots.
- Increasing from 7 to 15°C
- S 0.6m at 3s period
- Cloudy
Mon
1PM - 5PM
04 May 2026
- SW 9–17 knots. Gusts up to 23 knots.
- 10 to 20°C
- SW 0.4m at 2s period
- Cloudy
Mon
5PM - 9PM
04 May 2026
- SW 7–17 knots. Gusts up to 25 knots.
- 6 to 19°C
- Calm sea
- Cloudy
Mon
9PM - 5AM
04 May 2026
- SW 6–15 knots. Gusts up to 30 knots.
- 3 to 17°C
- SW 0.4m at 2s period
- Cloudy
Tue
5AM - 9AM
05 May 2026
- SW 9–14 knots. Gusts up to 30 knots.
- 7 to 19°C
- W 0.5m at 2s period
- Cloudy
Tue
9AM - 1PM
05 May 2026
- SW 12 knots increasing to 15 knots. Gusts up to 24 knots.
- Increasing from 14 to 20°C
- Cloudy
Tue
1PM - 5PM
05 May 2026
- W 14–18 knots. Gusts up to 27 knots.
- 9 to 25°C
- W 0.5m at 3s period
- Cloudy
Tue
5PM - 9PM
05 May 2026
- W 15 knots decreasing to 12 knots. Gusts up to 28 knots.
- 6 to 24°C
- Calm sea
- Cloudy
Tue
9PM - 5AM
05 May 2026
- S 2–11 knots.
- 7°C
- Calm sea
- Sunny
Wed
5AM - 9AM
06 May 2026
- S 5 knots increasing to 8 knots.
- 7°C
- Calm sea
- Mostly fine
Wed
9AM - 1PM
06 May 2026
- E 5 knots.
- 7°C
- Cloudy
Wed
1PM - 5PM
06 May 2026
- E 13 knots decreasing to 10 knots.
- Decreasing from 10 to 8°C
- Calm sea
- Cloudy
Wed
5PM - 9PM
06 May 2026
- E 10 knots increasing to 15 knots. Gusts up to 19 knots.
- Increasing from 8 to 10°C
- S 0.4m at 2s period
- Chance of showers
Wed
9PM - 5AM
06 May 2026
- W 3 knots increasing to SE 10 knots.
- 8 to 10°C
- SW 0.4m at 2s period
- Chance of showers
Thu
5AM - 9AM
07 May 2026
- S 10 knots increasing to 13 knots. Gusts up to 21 knots.
- 6 to 11°C
- Calm sea
- Rain
Thu
9AM - 1PM
07 May 2026
- SW 9 knots.
- 11°C
- Rain
Thu
1PM - 5PM
07 May 2026
- NW 14 knots increasing to 18 knots. Gusts up to 29 knots.
- 6 to 11°C
- NW 0.5m at 2s period
- Rain
Thu
5PM - 9PM
07 May 2026
- W 18 knots. Gusts up to 29 knots.
- 6 to 8°C
- NW 0.6m at 3s period
- Rain
Thu
9PM - 5AM
07 May 2026
- W 9–14 knots. Gusts up to 19 knots.
- 6°C
- W 0.4m at 2s period
- Sunny
Fri
5AM - 9AM
08 May 2026
- W 10 knots increasing to 13 knots. Gusts up to 20 knots.
- 4°C
- W 0.5m at 3s period
- Sunny
Fri
9AM - 1PM
08 May 2026
- W 12 knots.
- 8°C
- Partly cloudy
Fri
1PM - 5PM
08 May 2026
- W 11 knots increasing to 13 knots. Gusts up to 18 knots.
- 7 to 10°C
- Calm sea
- Cloudy
Fri
5PM - 9PM
08 May 2026
- W 13 knots decreasing to 10 knots. Gusts up to 18 knots.
- 6 to 10°C
- Calm sea
- Cloudy