About St. Catherines
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COORDINATES
43.18966 N, -79.31605 E
Port Information
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Weather Forecast
Thu
5AM - 9AM
19 March 2026
SW 6 knots increasing to 8 knots.
2°C
Calm sea
Cloudy
Thu
9AM - 1PM
19 March 2026
- SW 8 knots increasing to 11 knots.
- 2°C
- Calm sea
- Cloudy
Thu
1PM - 5PM
19 March 2026
- W 8–10 knots.
- 3 to 5°C
- Calm sea
UV Index: 1 - Low- Partly cloudy
Thu
5PM - 9PM
19 March 2026
- NW 11 knots decreasing to 8 knots.
- 3 to 5°C
- Calm sea
- UV Index: 0 - Low
- Partly cloudy
Thu
9PM - 5AM
19 March 2026
- NW 4–8 knots veering SE 4-8 knots.
- 1 to 3°C
- Calm sea
- UV Index: 0 - Low
- Partly cloudy
Fri
5AM - 9AM
20 March 2026
- E 5–11 knots.
- 1°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Fri
9AM - 1PM
20 March 2026
- SE 7 knots increasing to W 15 knots. Gusts up to 26 knots.
- Increasing from 1 to 5°C
- Calm sea
- UV Index: 0 - Low
- Rain
Fri
1PM - 5PM
20 March 2026
- SW 12 knots decreasing to NW 8 knots. Gusts up to 21 knots.
- 5°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Fri
5PM - 9PM
20 March 2026
- N 6–10 knots.
- 2 to 5°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Fri
9PM - 5AM
20 March 2026
- N 9 knots decreasing to 6 knots.
- 1 to 4°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Sat
5AM - 9AM
21 March 2026
- N 3–7 knots.
- 2°C
- Calm sea
- Cloudy
Sat
9AM - 1PM
21 March 2026
- NE 2–6 knots.
- 1 to 6°C
- Calm sea
- Cloudy
Sat
1PM - 5PM
21 March 2026
- E 2–8 knots veering SE 2-8 knots.
- 2 to 8°C
- Calm sea
- Cloudy
Sat
5PM - 9PM
21 March 2026
- E 5–9 knots.
- 2 to 7°C
- Calm sea
- Cloudy
Sat
9PM - 5AM
21 March 2026
- E 1–8 knots.
- 1 to 4°C
- Calm sea
- Cloudy
Sun
5AM - 9AM
22 March 2026
- NE 3–7 knots.
- 1 to 5°C
- Calm sea
- Cloudy
Sun
9AM - 1PM
22 March 2026
- NE 6–12 knots. Gusts up to 17 knots.
- 1 to 8°C
- Calm sea
- Chance of showers
Sun
1PM - 5PM
22 March 2026
- N 9–12 knots. Gusts up to 21 knots.
- 2 to 8°C
- Calm sea
- Chance of showers
Sun
5PM - 9PM
22 March 2026
- N 7–12 knots. Gusts up to 23 knots.
- 2 to 5°C
- NE 0.4m at 3s period
- Cloudy
Sun
9PM - 5AM
22 March 2026
- NE 6–15 knots. Gusts up to 25 knots.
- −2 to 3°C
- N 0.4m at 3s period
- Cloudy
Mon
5AM - 9AM
23 March 2026
- NE 10–15 knots. Gusts up to 21 knots.
- −4 to −1°C
- N 0.6m at 3s period
- Cloudy
Mon
9AM - 1PM
23 March 2026
- NE 10–13 knots. Gusts up to 19 knots.
- Increasing from −3 to 2°C
- N 0.6m at 3s period
- Partly cloudy
Mon
1PM - 5PM
23 March 2026
- NE 10–13 knots.
- 0 to 3°C
- N 0.6m at 3s period
- Partly cloudy
Mon
5PM - 9PM
23 March 2026
- N 8–14 knots. Gusts up to 19 knots.
- Decreasing from 2 to −2°C
- N 0.6m at 3s period
- Cloudy
Mon
9PM - 5AM
23 March 2026
- NE 11 knots decreasing to 7 knots. Gusts up to 20 knots.
- −1°C
- N 0.2-0.6m at 3s period
- Cloudy
Tue
5AM - 9AM
24 March 2026
- N 4–8 knots.
- −3 to 1°C
- Calm sea
- Cloudy
Tue
9AM - 1PM
24 March 2026
- E 4 knots increasing to 9 knots.
- Increasing from 0 to 4°C
- Calm sea
- Cloudy
Tue
1PM - 5PM
24 March 2026
- SE 6–11 knots. Gusts up to 18 knots.
- 3 to 6°C
- W 0.6m at 3s period
- Cloudy
Tue
5PM - 9PM
24 March 2026
- S 5–11 knots. Gusts up to 18 knots.
- 3 to 5°C
- W 0.5m at 3s period
- Cloudy
Tue
9PM - 5AM
24 March 2026
- S 7 knots increasing to 11 knots. Gusts up to 26 knots.
- 2 to 7°C
- Calm sea
- Cloudy
Wed
5AM - 9AM
25 March 2026
- SW 9–12 knots veering NW 9-12 knots. Gusts up to 28 knots.
- 1 to 10°C
- Calm sea
- Cloudy
Wed
9AM - 1PM
25 March 2026
- W 10–13 knots. Gusts up to 28 knots.
- 4 to 18°C
- Cloudy
Wed
1PM - 5PM
25 March 2026
- W 12 knots decreasing to 9 knots. Gusts up to 19 knots.
- 1 to 20°C
- Calm sea
- Mostly fine
Wed
5PM - 9PM
25 March 2026
- NW 9 knots decreasing to S 3 knots.
- 0 to 20°C
- NE 0.4m at 3s period
- Partly cloudy
Wed
9PM - 5AM
25 March 2026
- S 1–12 knots veering N 1-12 knots.
- −5 to 15°C
- Calm sea
- Chance of showers
Thu
5AM - 9AM
26 March 2026
- NE 1–11 knots backing S 1-11 knots.
- −7 to 8°C
- Calm sea
- Cloudy
Thu
9AM - 1PM
26 March 2026
- SW 19 knots.
- 4°C
- Cloudy
Thu
1PM - 5PM
26 March 2026
- SW 23–25 knots. Gusts up to 40 knots.
- 7 to 12°C
- S 0.7m at 3s period
- Rain
Thu
5PM - 9PM
26 March 2026
- SW 24 knots decreasing to NW 18 knots. Gusts up to 40 knots.
- 4 to 9°C
- W 0.5m at 3s period
- Rain
Thu
9PM - 5AM
26 March 2026
- NW 15–20 knots. Gusts up to 32 knots.
- −4 to 3°C
- NW 0.5m at 3s period
- Cloudy
Fri
5AM - 9AM
27 March 2026
- NW 18 knots decreasing to 16 knots. Gusts up to 24 knots.
- −7 to −3°C
- N 0.8m at 4s period
- Partly cloudy
Fri
9AM - 1PM
27 March 2026
- NW 16 knots.
- −6°C
- Cloudy
Fri
1PM - 5PM
27 March 2026
- NW 11 knots increasing to 16 knots. Gusts up to 19 knots.
- −4 to −2°C
- N 0.5m at 3s period
- Cloudy
Fri
5PM - 9PM
27 March 2026
- N 16 knots decreasing to 11 knots. Gusts up to 19 knots.
- −4 to 1°C
- Calm sea
- Cloudy
Fri
9PM - 5AM
27 March 2026
- NW 11 knots decreasing to 1 knots. Gusts up to 17 knots.
- −5 to 0°C
- Calm sea
- Sunny
Sat
5AM - 9AM
28 March 2026
- S 0 knots increasing to 9 knots.
- Increasing from −5 to −2°C
- Calm sea
- Mostly fine
Sat
9AM - 1PM
28 March 2026
- S 14 knots.
- −2°C
- Cloudy
Sat
1PM - 5PM
28 March 2026
- SW 17 knots decreasing to 10 knots. Gusts up to 22 knots.
- 1 to 6°C
- SW 0.6m at 3s period
- Cloudy
Sat
5PM - 9PM
28 March 2026
- SW 10 knots. Gusts up to 18 knots.
- 3 to 5°C
- Calm sea
- Cloudy
Sat
9PM - 5AM
28 March 2026
- SW 7–9 knots.
- 2°C
- Cloudy