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Water temperature in Montreal (QC) in July

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Is it warm enough to swim in Montreal in July? Average water temperature in Montreal in July is 22.1°C and therefore suitable for comfortable swimming. The warmest water in Montreal in July is 26°C, and the coldest is 17°C. Average high air temperature in Montreal in July is 26°C, and average low temperature is 16°C. To find out the water temperature today and in the coming days, go to Current water temperature in Montreal

Changes water temperature in Montreal in July 2025, 2024

To get an accurate forecast for the water temperature in Montreal for any chosen month, compare two years within a 10 year range using the chart below.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024
1 July22°C22°C
2 July22°C22°C
3 July22°C22°C
4 July23°C23°C
5 July23°C23°C
6 July22°C24°C
7 July22°C24°C
8 July22°C24°C
9 July22°C24°C
10 July23°C24°C
11 July23°C 
12 July24°C 
13 July25°C 
14 July25°C 
15 July26°C 
Day 2025 2024
16 July25°C 
17 July24°C 
18 July23°C 
19 July22°C23°C
20 July21°C 
21 July21°C22°C
22 July21°C21°C
23 July21°C22°C
24 July22°C22°C
25 July23°C21°C
26 July23°C22°C
27 July24°C23°C
28 July25°C23°C
29 July24°C23°C
30 July23°C24°C
31 July23°C25°C

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Average water temperature in Montreal in July over a decade

20162017201820192020
22°C20.5°C24.2°C23.3°C23.8°C
20212022202320242025
21.2°C20.5°C21.5°C22.9°C

Weather and climate in Montreal in July

This data display average monthly climate indicators in Montreal in July based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature26°C
  • Average LOW temperature16°C
  • Average rainfall days12 days
  • Average rainfall3.5''/89mm
  • Average daylight15h
  • Average sunshine8.8h
  • Average UV index7

Montreal water temperature during other months:

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

Where is the warm sea water in July?

Want to know where the water temperature in July is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Montreal photo gallery

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Montreal 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.

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