About St. Catherines
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COORDINATES
43.18966 N, -79.31605 E
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Weather Forecast
Wed
9AM - 1PM
01 April 2026
N 7 knots increasing to 11 knots.
2°C
Calm sea
Cloudy
Wed
1PM - 5PM
01 April 2026
- N 6–10 knots.
- 2°C
- Calm sea
UV Index: 3 - Moderate- Cloudy
Wed
5PM - 9PM
01 April 2026
- NE 6–10 knots.
- 3°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Wed
9PM - 5AM
01 April 2026
- NE 10 knots increasing to 15 knots. Gusts up to 20 knots.
- 1 to 3°C
- NE 0.2-0.6m at 3s period
- UV Index: 0 - Low
- Cloudy
Thu
5AM - 9AM
02 April 2026
- NE 13–18 knots.
- 1°C
- NE 0.7m at 4s period
- UV Index: 0 - Low
- Cloudy
Thu
9AM - 1PM
02 April 2026
- NE 12–19 knots. Gusts up to 23 knots.
- 1°C
- NE 0.8m at 4s period
- UV Index: 0 - Low
- Cloudy
Thu
1PM - 5PM
02 April 2026
- NE 14–19 knots. Gusts up to 23 knots.
- 1 to 3°C
- NE 0.9m at 4s period
- UV Index: 2 - Low
- Cloudy
Thu
5PM - 9PM
02 April 2026
- NE 16 knots decreasing to 8 knots. Gusts up to 24 knots.
- 2 to 5°C
- NE 0.9m at 5s period
- UV Index: 0 - Low
- Cloudy
Thu
9PM - 5AM
02 April 2026
- N 3 knots increasing to SE 16 knots. Gusts up to 29 knots.
- 4 to 12°C
- E 0.5-0.8m at 4s period
- UV Index: 0 - Low
- Chance of showers
Fri
5AM - 9AM
03 April 2026
- SW 12–19 knots. Gusts up to 30 knots.
- 10°C
- S 0.6m at 3s period
- Chance of showers
Fri
9AM - 1PM
03 April 2026
- SW 13–20 knots. Gusts up to 27 knots.
- 11 to 13°C
- SW 0.6m at 3s period
- Cloudy
Fri
1PM - 5PM
03 April 2026
- W 8–16 knots. Gusts up to 20 knots.
- 13°C
- SW 0.4m at 3s period
- Cloudy
Fri
5PM - 9PM
03 April 2026
- W 5–14 knots veering NW 5-14 knots.
- Decreasing from 12 to 8°C
- Calm sea
- Partly cloudy
Fri
9PM - 5AM
03 April 2026
- NW 4–10 knots veering E 4-10 knots.
- 3 to 8°C
- Calm sea
- Cloudy
Sat
5AM - 9AM
04 April 2026
- E 5 knots increasing to 11 knots. Gusts up to 19 knots.
- 3°C
- Calm sea
- Cloudy
Sat
9AM - 1PM
04 April 2026
- E 6–16 knots.
- Increasing from 4 to 7°C
- Calm sea
- Cloudy
Sat
1PM - 5PM
04 April 2026
- E 6–16 knots. Gusts up to 19 knots.
- 3 to 12°C
- NE 0.6m at 4s period
- Cloudy
Sat
5PM - 9PM
04 April 2026
- NE 7 knots decreasing to S 3 knots.
- 4 to 12°C
- NE 0.5m at 4s period
- Rain
Sat
9PM - 5AM
04 April 2026
- W 6 knots increasing to 11 knots. Gusts up to 21 knots.
- 7 to 11°C
- Calm sea
- Rain
Sun
5AM - 9AM
05 April 2026
- W 7–16 knots. Gusts up to 22 knots.
- 6 to 8°C
- Calm sea
- Cloudy
Sun
9AM - 1PM
05 April 2026
- W 11–18 knots. Gusts up to 22 knots.
- 6°C
- W 0.6m at 2s period
- Cloudy
Sun
1PM - 5PM
05 April 2026
- W 10–16 knots. Gusts up to 22 knots.
- 6°C
- W 0.6m at 3s period
- Cloudy
Sun
5PM - 9PM
05 April 2026
- W 9–16 knots. Gusts up to 22 knots.
- Decreasing from 6 to 3°C
- W 0.5m at 3s period
- Cloudy
Sun
9PM - 5AM
05 April 2026
- W 4–17 knots. Gusts up to 24 knots.
- 2°C
- W 0.6m at 3s period
- Cloudy
Mon
5AM - 9AM
06 April 2026
- W 2–14 knots. Gusts up to 17 knots.
- 2°C
- NW 0.5m at 3s period
- Cloudy
Mon
9AM - 1PM
06 April 2026
- NW 2–14 knots.
- 1°C
- NW 0.4m at 2s period
- Rain
Mon
1PM - 5PM
06 April 2026
- NW 6 knots increasing to 10 knots. Gusts up to 17 knots.
- 1 to 4°C
- Calm sea
- Chance of showers
Mon
5PM - 9PM
06 April 2026
- W 6–11 knots. Gusts up to 20 knots.
- 0 to 4°C
- Calm sea
- Cloudy
Mon
9PM - 5AM
06 April 2026
- NW 4–11 knots. Gusts up to 20 knots.
- −3 to 1°C
- N 0.5m at 3s period
- Partly cloudy
Tue
5AM - 9AM
07 April 2026
- NW 4–10 knots. Gusts up to 17 knots.
- −4 to 1°C
- N 0.5m at 3s period
- Partly cloudy
Tue
9AM - 1PM
07 April 2026
- NW 9 knots decreasing to 7 knots.
- Increasing from −1 to 4°C
- Cloudy
Tue
1PM - 5PM
07 April 2026
- NW 5–8 knots.
- 2 to 9°C
- Calm sea
- Mostly fine
Tue
5PM - 9PM
07 April 2026
- NW 10 knots decreasing to 6 knots.
- Decreasing from 5 to 0°C
- Calm sea
- Mostly fine
Tue
9PM - 5AM
07 April 2026
- Light and variable.
- −7 to 2°C
- N 0.4m at 3s period
- Sunny
Wed
5AM - 9AM
08 April 2026
- S 5 knots increasing to 8 knots. Gusts up to 19 knots.
- −8 to 4°C
- Calm sea
- Sunny
Wed
9AM - 1PM
08 April 2026
- SE 9 knots.
- 0°C
- Mostly fine
Wed
1PM - 5PM
08 April 2026
- E 7 knots increasing to 12 knots.
- 1 to 5°C
- Calm sea
- Partly cloudy
Wed
5PM - 9PM
08 April 2026
- E 12 knots decreasing to 9 knots.
- 2 to 5°C
- Calm sea
- Cloudy
Wed
9PM - 5AM
08 April 2026
- S 11 knots increasing to 25 knots. Gusts up to 39 knots.
- 4 to 7°C
- S 0.8m at 3s period
- Cloudy
Thu
5AM - 9AM
09 April 2026
- SW 22 knots. Gusts up to 35 knots.
- 6 to 8°C
- S 1.0m at 3s period
- Cloudy
Thu
9AM - 1PM
09 April 2026
- SW 23 knots.
- 7°C
- Cloudy
Thu
1PM - 5PM
09 April 2026
- SW 16 knots decreasing to NW 9 knots. Gusts up to 23 knots.
- 8°C
- SW 0.6m at 3s period
- Chance of showers
Thu
5PM - 9PM
09 April 2026
- NW 9 knots increasing to 11 knots.
- Decreasing from 8 to 6°C
- Calm sea
- Chance of showers
Thu
9PM - 5AM
09 April 2026
- N 4–13 knots veering NE 4-13 knots.
- 1 to 4°C
- N 0.6m at 3s period
- Rain
Fri
5AM - 9AM
10 April 2026
- NE 6 knots increasing to 10 knots.
- 0 to 4°C
- N 0.6m at 3s period
- Chance of showers
Fri
9AM - 1PM
10 April 2026
- E 10 knots.
- 3°C
- Cloudy
Fri
1PM - 5PM
10 April 2026
- E 7 knots increasing to 11 knots.
- 1 to 4°C
- Calm sea
- Cloudy
Fri
5PM - 9PM
10 April 2026
- NE 11 knots decreasing to E 7 knots.
- 3°C
- Calm sea
- Partly cloudy
Fri
9PM - 5AM
10 April 2026
- NE 10 knots decreasing to SE 1 knots.
- 2 to 4°C
- Calm sea
- Mostly fine