This data the coastal Lac-Megantic water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Water temperature in Lac-Megantic today is 16°C. Based on our historical data over a period of ten years, the warmest water in this day in Lac-Megantic was recorded in 2023 and was 18°C, and the coldest 15°C. Water temperature in Lac-Megantic is expected to drop to 15.5°C in the next 10 days. September average water temperature in Lac-Megantic is 14.9°C, the minimum temperature is 9°C, and the maximum is 20°C.
Throughout the year, the water temperature in Lac-Megantic does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of June, July, August, September, the water temperature warms up to 20°C and above. The average water temperature in Lac-Megantic in winter reaches 2.9°C, in spring 5.8°C, in summer the average temperature rises to 17.5°C, and in autumn it is 9.5°C.
5 September 2025 |
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today temp |
16°C |
4 September 2025 |
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yesterday temp |
16°C |
Data in a table show Lac-Megantic temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Lac-Megantic.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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12.4°C | 12.8°C | 13.8°C | 15.5°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
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19°C | 21.2°C | 20.5°C | 17.6°C |
You may also be interested in other sections of our site for Lac-Megantic: Sunrise and Sunset
These figures shows the average, minimum and maximum monthly water temperature in Lac-Megantic. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Lac-Megantic on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
Month | Avr | Min | Max | |
---|---|---|---|---|
January | 3°C | 3°C | 3°C | cold |
Water temperature in Lac-Megantic in January | ||||
February | 3°C | 3°C | 4°C | cold |
Water temperature in Lac-Megantic in February | ||||
March | 3°C | 3°C | 4°C | cold |
Water temperature in Lac-Megantic in March | ||||
April | 3.9°C | 1°C | 9°C | cold |
Water temperature in Lac-Megantic in April | ||||
May | 10.6°C | 4°C | 17°C | cold |
Water temperature in Lac-Megantic in May | ||||
June | 15.7°C | 10°C | 21°C | cold |
Water temperature in Lac-Megantic in June | ||||
July | 18.9°C | 15°C | 23°C | cold |
Water temperature in Lac-Megantic in July | ||||
August | 17.9°C | 15°C | 22°C | cold |
Water temperature in Lac-Megantic in August | ||||
September | 14.9°C | 9°C | 20°C | cold |
Water temperature in Lac-Megantic in September | ||||
October | 9.4°C | 4°C | 16°C | cold |
Water temperature in Lac-Megantic in October | ||||
November | 4.2°C | 2°C | 11°C | cold |
Water temperature in Lac-Megantic in November | ||||
December | 2.8°C | 1°C | 4°C | cold |
Water temperature in Lac-Megantic in December |