About St. Catherines
City
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COORDINATES
43.18966 N, -79.31605 E
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Weather Forecast
Fri
9AM - 1PM
22 May 2026
E 8 knots increasing to NE 17 knots. Gusts up to 22 knots.
10°C
NE 0.6m at 3s period
Cloudy
Fri
1PM - 5PM
22 May 2026
- NE 15–18 knots. Gusts up to 25 knots.
- 10°C
- NE 0.7m at 3s period
UV Index: 6 - High- Cloudy
Fri
5PM - 9PM
22 May 2026
- NE 16 knots decreasing to 13 knots. Gusts up to 24 knots.
- 10°C
- NE 0.6m at 4s period
- UV Index: 0 - Low
- Cloudy
Fri
9PM - 5AM
22 May 2026
- E 6–15 knots. Gusts up to 26 knots.
- 10°C
- NE 0.5m at 3s period
- UV Index: 0 - Low
- Cloudy
Sat
5AM - 9AM
23 May 2026
- E 7–14 knots. Gusts up to 19 knots.
- 10°C
- NE 0.4m at 4s period
- UV Index: 0 - Low
- Cloudy
Sat
9AM - 1PM
23 May 2026
- E 7–18 knots. Gusts up to 22 knots.
- 9°C
- E 0.5m at 3s period
- UV Index: 0 - Low
- Rain
Sat
1PM - 5PM
23 May 2026
- E 14 knots increasing to 19 knots. Gusts up to 27 knots.
- 9°C
- E 0.5-0.8m at 4s period
- UV Index: 0 - Low
- Rain
Sat
5PM - 9PM
23 May 2026
- E 12–22 knots. Gusts up to 27 knots.
- 9°C
- NE 0.8m at 4s period
- UV Index: 0 - Low
- Rain
Sat
9PM - 5AM
23 May 2026
- E 16 knots decreasing to 9 knots. Gusts up to 21 knots.
- 9°C
- NE 0.6m at 5s period
- UV Index: 0 - Low
- Chance of showers
Sun
5AM - 9AM
24 May 2026
- E 10 knots decreasing to S 6 knots.
- 9 to 11°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers
Sun
9AM - 1PM
24 May 2026
- S 4–11 knots.
- 11 to 15°C
- Calm sea
- UV Index: 1 - Low
- Cloudy
Sun
1PM - 5PM
24 May 2026
- S 5–8 knots veering NW 5-8 knots.
- 12 to 16°C
- Calm sea
- Cloudy
Sun
5PM - 9PM
24 May 2026
- N 6 knots decreasing to E 3 knots.
- 13 to 15°C
- Calm sea
- Cloudy
Sun
9PM - 5AM
24 May 2026
- NW 2–6 knots.
- 10 to 14°C
- Calm sea
- Cloudy
Mon
5AM - 9AM
25 May 2026
- Light and variable.
- 9 to 13°C
- Calm sea
- Cloudy
Mon
9AM - 1PM
25 May 2026
- Light and variable.
- Increasing from 12 to 16°C
- Calm sea
- Partly cloudy
Mon
1PM - 5PM
25 May 2026
- SE 5–8 knots.
- 13 to 20°C
- Calm sea
- Partly cloudy
Mon
5PM - 9PM
25 May 2026
- SE 4–8 knots veering S 4-8 knots.
- Decreasing from 18 to 15°C
- Calm sea
- Partly cloudy
Mon
9PM - 5AM
25 May 2026
- SW 5–9 knots. Gusts up to 16 knots.
- 13°C
- Calm sea
- Partly cloudy
Tue
5AM - 9AM
26 May 2026
- SW 6–8 knots.
- Increasing from 12 to 16°C
- Calm sea
- Mostly fine
Tue
9AM - 1PM
26 May 2026
- SW 6–10 knots.
- Increasing from 17 to 23°C
- Calm sea
- Sunny
Tue
1PM - 5PM
26 May 2026
- SW 7–12 knots. Gusts up to 17 knots.
- 18 to 27°C
- Calm sea
- Sunny
Tue
5PM - 9PM
26 May 2026
- SW 11 knots decreasing to NW 8 knots. Gusts up to 16 knots.
- Decreasing from 23 to 17°C
- Calm sea
- Sunny
Tue
9PM - 5AM
26 May 2026
- NW 6–12 knots. Gusts up to 18 knots.
- 13 to 17°C
- Calm sea
- Mostly fine
Wed
5AM - 9AM
27 May 2026
- W 6 knots.
- Increasing from 11 to 16°C
- Calm sea
- Sunny
Wed
9AM - 1PM
27 May 2026
- NW 4–9 knots backing SW 4-9 knots.
- Increasing from 17 to 23°C
- Calm sea
- Sunny
Wed
1PM - 5PM
27 May 2026
- SW 4–10 knots.
- 16 to 32°C
- Calm sea
- Sunny
Wed
5PM - 9PM
27 May 2026
- SW 2–10 knots.
- 14 to 30°C
- Calm sea
- Mostly fine
Wed
9PM - 5AM
27 May 2026
- W 1–8 knots. Gusts up to 17 knots.
- Decreasing from 16 to 10°C
- Calm sea
- Partly cloudy
Thu
5AM - 9AM
28 May 2026
- W 3–8 knots.
- Increasing from 11 to 16°C
- Calm sea
- Partly cloudy
Thu
9AM - 1PM
28 May 2026
- W 3–9 knots.
- Increasing from 18 to 25°C
- Partly cloudy
Thu
1PM - 5PM
28 May 2026
- SW 3–9 knots.
- 14 to 31°C
- Calm sea
- Partly cloudy
Thu
5PM - 9PM
28 May 2026
- SW 3–8 knots backing N 3-8 knots.
- Decreasing from 25 to 20°C
- Calm sea
- Partly cloudy
Thu
9PM - 5AM
28 May 2026
- W 5–9 knots veering E 5-9 knots. Gusts up to 20 knots.
- Decreasing from 20 to 12°C
- Calm sea
- Partly cloudy
Fri
5AM - 9AM
29 May 2026
- NE 5 knots increasing to 9 knots. Gusts up to 20 knots.
- 11 to 16°C
- Calm sea
- Cloudy
Fri
9AM - 1PM
29 May 2026
- E 8 knots.
- 12°C
- Mostly fine
Fri
1PM - 5PM
29 May 2026
- E 7 knots decreasing to S 5 knots.
- 11°C
- Calm sea
- Sunny
Fri
5PM - 9PM
29 May 2026
- S 5 knots backing N 5 knots.
- 12°C
- Calm sea
- Sunny
Fri
9PM - 5AM
29 May 2026
- NE 16 knots decreasing to 6 knots. Gusts up to 23 knots.
- 11°C
- Calm sea
- Partly cloudy
Sat
5AM - 9AM
30 May 2026
- NE 6–9 knots.
- 10°C
- Calm sea
- Mostly fine
Sat
9AM - 1PM
30 May 2026
- Light and variable.
- 11°C
- Sunny
Sat
1PM - 5PM
30 May 2026
- 8knots decreasing to 1 knots.
- Increasing from 11 to 14°C
- Calm sea
- Mostly fine
Sat
5PM - 9PM
30 May 2026
- NE 1 knots increasing to 9 knots.
- 10 to 14°C
- Calm sea
- Partly cloudy
Sat
9PM - 5AM
30 May 2026
- E 9 knots decreasing to 5 knots.
- 10°C
- Calm sea
- Mostly fine
Sun
5AM - 9AM
31 May 2026
- N 4–9 knots.
- 10°C
- Calm sea
- Sunny
Sun
9AM - 1PM
31 May 2026
- E 8 knots.
- 11°C
- Sunny
Sun
1PM - 5PM
31 May 2026
- SE 4–6 knots.
- 11 to 15°C
- Calm sea
- Mostly fine
Sun
5PM - 9PM
31 May 2026
- S 5 knots decreasing to 3 knots.
- Increasing from 12 to 15°C
- Calm sea
- Mostly fine
Sun
9PM - 5AM
31 May 2026
- NW 3–6 knots.
- 11 to 13°C
- Calm sea
- Sunny