Water temperature in Lake Saint-Jean (QC) in April

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Is it warm enough to swim in Lake Saint-Jean in April? Average water temperature in Lake Saint-Jean in April is 1.6°C and therefore is not suitable for comfortable swimming. The warmest water in Lake Saint-Jean in April is 5.1°C, and the coldest is 0°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Lake Saint-Jean

Changes water temperature in Lake Saint-Jean in April 2025, 2024

To get an accurate forecast for the water temperature in Lake Saint-Jean for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Lake Saint-Jean, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.

Sea temperature

Tides

Sunrise and Sunset

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Day	2025	2024	Min	Max
1 April	0.1°C	0.2°C	0°C	2°C
2 April	0.1°C	0.2°C	0°C	2°C
3 April	0.1°C	0.2°C	0°C	2°C
4 April	0.1°C	0.1°C	0°C	1.8°C
5 April	0.1°C	0.1°C	0.1°C	2.1°C
6 April	0.1°C	1°C	0.1°C	2.1°C
7 April	0.2°C	0.9°C	0.1°C	2.1°C
8 April	0.2°C	0.8°C	0.1°C	2.2°C
9 April	0.2°C	0.8°C	0.1°C	2.2°C
10 April	0.3°C	0.8°C	0.1°C	2.3°C
11 April	0.3°C	0.7°C	0.2°C	2.6°C
12 April	0.3°C	0.7°C	0.2°C	2.5°C
13 April	0.4°C	0.7°C	0.3°C	2.7°C
14 April	0.5°C	0.8°C	0.3°C	2.7°C
15 April	0.5°C	0.8°C	0.4°C	3°C

Day	2025	2024	Min	Max
16 April	0.5°C	0.8°C	0.4°C	3.2°C
17 April	0.6°C	0.8°C	0.4°C	3.5°C
18 April	0.6°C	0.8°C	0.5°C	3.4°C
19 April	0.6°C	0.9°C	0.5°C	4.4°C
20 April	0.8°C	3.9°C	0.7°C	4°C
21 April	0.9°C	3.7°C	0.8°C	3.8°C
22 April	1°C	3°C	0.9°C	4.1°C
23 April	1.1°C	2.9°C	1.1°C	3.9°C
24 April	1.2°C	2.9°C	1.2°C	4°C
25 April	1.3°C	1.6°C	1.3°C	4.2°C
26 April	1.5°C	1.6°C	1.4°C	5.1°C
27 April	2.4°C	1.8°C	1.5°C	4.8°C
28 April	2.4°C	1.9°C	1.5°C	4.5°C
29 April	2.3°C	1.9°C	1.6°C	4.4°C
30 April	2.3°C	2°C	1.6°C	4.6°C

Lake Saint-Jean water temp chart in April

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Average water temperature in Lake Saint-Jean in April over a decade

2016	2017	2018	2019	2020
2.4°C	2.6°C	0.6°C	0.8°C	0.6°C

2021	2022	2023	2024	2025
2.2°C	0.6°C	0.6°C	1.3°C	0.8°C

Lake Saint-Jean water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Fjord du Saguenay	1.5°C	-1.1°C	5°C
Baie Saint Paul	3°C	-0.3°C	7.6°C
La Malbaie	2.4°C	-0.2°C	6.2°C
Beaupre	3.7°C	-0.5°C	8.4°C
Chateau Richer	3.7°C	-0.9°C	8.3°C
Kamouraska	2.4°C	-0.3°C	6°C
Riviere-du-Loup	2.3°C	-0.3°C	5.8°C
Les Escoumins	1.9°C	-1.1°C	5.1°C
Berthier sur Mer	3.6°C	-0.8°C	8.6°C
Rimouski	2.1°C	-0.9°C	5.5°C

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Our report for Lake Saint-Jean is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature