Water Temperature of Lake Ontario in Grimsby, Ontario

Current Water Temperature

14.5°C

Measurement Time: Saturday, October 24, 2026, 3:00 PM EDT

Temperature Locations

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Local Points of Interest

Hamilton, ON; Toronto, ON

Lake Ontario

Station Name: West Lake Ontario - Grimsby
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 73 meters

Nearest Address:
Grimsby, ON
Niagara Regional District County

GPS Coordinates: 43.25, -79.53

Nearby Water Temperatures

Eighteenmile Creek, Burt, NY (66.3 km)
Buffalo River, Buffalo, NY (66.4 km)
Erie Canal, Lockport, NY (68.7 km)
Oak Orchard Creek, Medina, NY (93.1 km)
Oak Orchard Creek, Kenyonville, NY (98.9 km)
Cattaraugus Creek, Gowanda, NY (100.0 km)
Johnson Creek, Kuckville, NY (103.1 km)
Oak Orchard Creek, Kent, NY (108.8 km)
Sandy Creek, North Hamlin, NY (131.1 km)
Allegheny River, Salamanca, NY (138.7 km)
Walnut Creek, Erie, PA (142.9 km)
Northrup Creek, North Greece, NY (144.8 km)
Erie Canal, Rochester, NY (153.0 km)
Genesee River, Rochester, NY (155.6 km)
Allen Creek, Brighton, NY (162.9 km)

Weather for Grimsby, Ontario

Current Weather

13°C
Sunny
Conditions: Sunny
Humidity: 64%
Feels Like: 10.8°C
Wind: ENE 5.8 mph
Wind Gusts: 9 mph
Pressure: 30.47 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0.5

Weather Forecast

Sunny
Sat
H: 13°C
L: 9°C
Sunny
Sun
H: 17°C
L: 10°C
Overcast
Mon
H: 15°C
L: 10°C

Air Quality

PM2.5: 7.4 μg/m3
PM10: 7.4 μg/m3
Carbon Monoxide: 716 μg/m3
Nitrogen Dioxide: 8.7 μg/m3
Sulphur Dioxide: 3.9 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 1:02 PM
Sunset: 6:21 PM
Daylight: 10 hrs 38 mins
Moonrise: 5:18 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:38 AM - 3:08 PM

Minor Periods

4:48 PM - 6:18 PM
5:23 AM - 6:53 AM

Action Rating: 3 out of 5

Saturday, October 24, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 10.7°C
Average Humidity: 66%
Chance of Rain: 5%
Wind: 10.5 mph
UV Index: 3

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 1:02 PM
Sunset: 6:21 PM
Daylight: 10 hrs 38 mins
Moonrise: 5:18 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:38 AM - 3:08 PM

Minor Periods

4:48 PM - 6:18 PM
5:23 AM - 6:53 AM

Action Rating: 3 out of 5

Sunday, October 25, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 12.8°C
Average Humidity: 66%
Chance of Rain: 8%
Wind: 12.1 mph
UV Index: 3.2

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 1:02 PM
Sunset: 6:20 PM
Daylight: 10 hrs 35 mins
Moonrise: 5:43 PM
Moon Transit: 12:05 AM
Moonset: 7:08 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:27 PM - 3:57 PM

Minor Periods

5:13 PM - 6:43 PM
6:38 AM - 8:08 AM

Action Rating: 5 out of 5

Monday, October 26, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 12.8°C
Average Humidity: 68%
Chance of Rain: 13%
Wind: 15.7 mph
UV Index: 3.1

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 1:02 PM
Sunset: 6:18 PM
Daylight: 10 hrs 33 mins
Moonrise: 6:13 PM
Moon Transit: 12:57 AM
Moonset: 8:26 AM
Moon Phase: Full
Moon Illumination: 98.9%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
2:21 PM - 4:51 PM

Minor Periods

5:43 PM - 7:13 PM
7:56 AM - 9:26 AM

Action Rating: 4 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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