July Weather in Montreal, Canada

Last updated: April 22, 2025

Experience July in Montreal, Canada, where the summer heat can soar to a maximum of 35°C (95°F), offering a vibrant atmosphere filled with outdoor activities and festivals. The average temperature remains comfortable at 22°C (72°F), while cooler evenings can drop to 10°C (50°F), perfect for enjoying the city's nightlife. Expect some wet days, with 103 mm (4.1 in) of precipitation spread across 14 days, contributing to the lush landscapes. The humidity this month hovers around 76%, adding a tropical feel to the warm summer days. Whether you're exploring historic sites or indulging in culinary delights, July in Montreal promises an unforgettable experience.

July Temperature in Montreal

In July, Montreal basks in the warmth of summer, with temperatures reflecting a delightful transition from the chilly depths of winter. The month kicks off with a minimum temperature of 10°C (50°F), rising to an average of 22°C (72°F), and peaking at a sweltering 35°C (95°F). This season showcases the city's vibrant outdoor life, inviting locals and visitors alike to indulge in festivals, parks, and waterfront activities. Compared to the cooler summer months of June and August, July stands out as the hottest time of the year, offering a perfect blend of sunshine and warmth that heralds the height of the city's summer charm.

July Weather in Montreal: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Montreal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec171929435766727062503524
Data source: Temperature data for Montreal generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Montreal

In July, Montreal experiences a notable downpour, with precipitation measuring 103 mm (4.1 in), matching the levels seen in June. This month sees 14 days of rain, marking it as one of the wetter periods of the year. Interestingly, the consistent rainfall continues into August, which averages a bit higher at 109 mm (4.3 in) over 13 rainy days. The trend suggests that summer in Montreal is not only warm but also tends to be quite moist, setting the stage for lush greenery in the city's parks and gardens. This pattern stands in contrast to the drier months that precede the fall, illustrating the seasonal shift in weather dynamics.

July Precipitation Trends in Montreal

The chart displays monthly precipitation patterns in Montreal, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec848284121971041031097313911888
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Montreal

In July, Montreal experiences a slight uptick in humidity, with levels around 76%. This marks a gentle rise from the lower humidity of 74% seen in June, reflecting the transition into summer. As temperatures peak during this month, combined with the lush greenery characteristic of the season, the humidity provides a warm, tropical feel. Interestingly, while July's humidity is moderate compared to the extremely high levels of 93% in January and 92% in February, it remains a part of a trend where humidity gradually decreases from the oppressive winter months, stabilizing at a comfortable level for outdoor activities. Following July, August shows a slight dip to 75%, suggesting a gradual shift as summer wanes, maintaining a balance that keeps Montreal's charm alive even in early fall.

July Average Humidity in Montreal

This chart illustrates the average monthly humidity levels in Montreal, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Montreal

In July, Montreal experiences a UV Index of 8, categorizing it as very high and indicating that sun exposure can lead to skin damage in just 15 minutes. This trend of increased UV radiation starts in May and continues through August, highlighting a peak summer season where caution is essential. Visitors and residents alike should be vigilant, using sunscreen and protective clothing to enjoy the outdoors safely. Compared to the lower UV levels earlier in the year, July's index emphasizes the importance of sun safety during the warmest months. For more on UV levels in Montreal, check out Montreal UV Index.

Maximum UV Index Levels in Montreal for July

The chart shows the monthly maximum UV Index (UVI) for Montreal in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Montreal July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in Montreal

In Montreal, the summer months truly shine, with July basking in an impressive 342 hours of sunshine. This peak comes on the heels of a gradual increase throughout the spring, where the city sees a steady climb from just 236 hours in March to 321 hours in June. As July unfolds, the sunlight becomes more abundant, vibrant, and essential, enveloping the city in warmth and energy, perfect for outdoor activities and festivals. Interestingly, as summer begins to wane, August still enjoys a generous 326 hours, though a subtle decline marks the transition into fall, indicated by September's 281 hours. This trend highlights Montreal's flirtation with sunny days as it moves from the lively warmth of summer into the cooler embrace of autumn, making every ray of July sunshine all the more precious.

Monthly Sunshine Duration in Montreal: July Highlighted

The July sunshine duration represents the total number of hours Montreal experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec118h155h236h226h285h321h342h326h281h196h146h143h
Data source: Montreal July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Montreal During July

In Montreal, the likelihood of sunny weather tends to fluctuate significantly throughout the year, with July showing a modest 33% chance of sunshine. This percentage is notably lower than the summer's peak in August, where the probability rises to 45%, indicating a shift towards brighter days as the season progresses. Interestingly, July's sun chances are among the lowest in the summer months, suggesting that while temperatures can be warm, the sunshine may not be as abundant. Furthermore, looking at the overall trend, this month sits alongside June—also at 36%—and reflects a dip compared to the sunnier spring months. With this in mind, it's wise for residents and visitors alike to prepare for a mix of sun and clouds during their July adventures in the city.

Percentage of Sunny Days in July in Montreal

The chart illustrates the percentage of sunny days in Montreal throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Montreal experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%39%43%36%41%36%33%46%41%29%45%29%
Data source: Montreal July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Montreal in July

In July, Montreal basks in 15 hours of daylight, marking the peak of summer and providing the longest days of the year. This month, like June, enjoys the generous gift of sunlight, allowing residents and visitors alike to indulge in outdoor activities and vibrant festivals under bright skies. As the summer progresses, the daylight gradually begins to wane in August, decreasing to 14 hours, signaling a transition toward shorter days. Comparing July's daylight to the earlier months of winter, where January only offers 9 hours, it's evident how profoundly the shifting seasons influence Montreal's daylight duration, enhancing the city's lively summer spirit before the return of shorter, darker days in the fall.

Average Daylight Hours in Montreal for July

The chart illustrates the variation in daylight duration in Montreal throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 8m10h 23m11h 57m13h 33m14h 55m15h 36m15h 14m14h12h 28m10h 52m9h 28m8h 45m
Data source: Montreal daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Montreal

In the heart of summer, July winds in Montreal, Canada, exhibit a gentle average speed of 3.0 m/s (7 mph), reflecting the region's warm climate. This slight dip in wind velocity can be contrasted with the more invigorating breezes of earlier months, such as March, which boasts an average of 4.5 m/s (10 mph). As the season progresses into August, the wind speed remains steady at 3.0 m/s, suggesting a calm consistency in the air that envelops the city during these warm summer days. This trend highlights the transition from spring's brisk freshness to the soft, soothing winds typical of late summer, creating a serene atmosphere for both locals and visitors alike.

Average July Wind Speed in Montreal

The chart displays monthly wind speed patterns in Montreal, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.64.53.53.43.73.0 m/s3.03.43.23.44.0
Data source: Montreal July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Montreal Compares to Other Months

The weather in Montreal changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Montreal and find detailed weather information for every month.

July and January present a stark contrast in weather. In July, temperatures range from a minimum of 10°C (50°F) to a maximum of 35°C (95°F), with an average of 22°C (72°F). The month experiences moderate precipitation at 103 mm (4.1 in) over 14 days, coupled with humidity levels reaching 76%. In stark opposition, January sees significantly colder conditions, with temperatures ranging from a chilling -32°C (-25°F) to a maximum of 9°C (49°F) and an average of -8°C (17°F). Although January has lower precipitation levels at 84 mm (3.3 in) spread over 11 days, the humidity is higher at 93%. For more detailed insights on January conditions, you can check Montreal weather in January.

July and February present starkly contrasting weather conditions. In July, temperatures soar with a minimum of 10°C (50°F), an average of 22°C (72°F), and highs reaching up to 35°C (95°F), accompanied by a humidity level of 76% and 103 mm of precipitation over 14 days. Conversely, February is characterized by frigid conditions, featuring a minimum temperature of -25°C (-13°F), an average of -7°C (20°F), and a maximum of only 13°C (56°F). Despite slightly lower precipitation totals at 82 mm over 12 days, the humidity remains notably high at 92%. For a more detailed insight into February's weather, check out Montreal weather in February.

In Montreal, July presents a stark contrast to March, characterized by significantly warmer temperatures and higher humidity. July temperatures range from a cool 10°C (50°F) at night to a sweltering maximum of 35°C (95°F), while March experiences a chilling minimum of -23°C (-9°F) and a relatively mild maximum of 20°C (69°F). With average July precipitation at 103 mm (4.1 in) over 14 days, the summer month is wetter than March, which sees 84 mm (3.3 in) across 11 days. Additionally, the humidity in July is a humid 76%, slightly lower than March's higher humidity level of 86%. For more details on March weather, visit Montreal weather in March.

July and April present strikingly different weather patterns. In July, temperatures range from a minimum of 10°C (50°F) to a maximum of 35°C (95°F), with an average of 22°C (72°F), making it a warm and humid month with an average humidity of 76%. Conversely, April sees much cooler conditions, with temperatures spanning from -10°C (14°F) to 25°C (78°F), and an average of only 6°C (43°F). Despite being slightly wetter, with 121 mm (4.7 in) of precipitation over 12 days compared to July's 103 mm (4.1 in) over 14 days, April maintains a higher humidity level at 85%. For more detailed insights into the weather patterns of April, you can visit Montreal weather in April.

When comparing the weather in July and May, notable differences emerge. July boasts a warmer average temperature of 22°C (72°F) compared to May's average of 14°C (57°F), although May can reach slightly higher maximum temperatures, peaking at 36°C (97°F). Both months experience considerable humidity, with July at 76% and May at a slightly higher 80%. Precipitation levels are similar, with July receiving 103 mm (4.1 in) over 14 days and May slightly less at 97 mm (3.8 in) over 11 days. For more detailed insights, you can check Montreal weather in May.

In comparing the weather between June and July, July is generally warmer, with average temperatures reaching 22°C (72°F) compared to June's 19°C (67°F). Although both months experience similar precipitation levels of 103 mm (4.1 in), July has a slightly higher number of rainy days at 14 compared to June's 12 days. The humidity in July is also a bit higher at 76%, making it feel warmer than June, which has a humidity level of 74%. For more details on June's weather patterns, you can check Montreal weather in June.

In comparing the weather of July and August, July tends to be slightly warmer, with average temperatures peaking at 22°C (72°F) and a maximum reaching 35°C (95°F). In contrast, August experiences a marginally cooler average temperature of 21°C (70°F), with a maximum of 33°C (92°F). Precipitation levels are comparable, with July receiving 103 mm (4.1 in) over 14 days and August recording 109 mm (4.3 in) across 13 days. Humidity remains fairly consistent, with July at 76% and August slightly lower at 75%. For a more detailed look at the weather specifics for August, visit Montreal weather in August.

July and September present quite different weather profiles. In July, temperatures range from a chilly 10°C (50°F) at night to a sizzling maximum of 35°C (95°F) during the day, with an average of 22°C (72°F). This month sees significant precipitation, with 103 mm (4.1 in) falling over 14 days and humidity levels sitting at 76%. In contrast, September experiences cooler temperatures, with nighttime lows dropping to 2°C (35°F) and daytime highs averaging around 32°C (90°F), with an average temperature of 16°C (62°F). Precipitation decreases to 73 mm (2.9 in) over just 9 rainy days, and humidity rises slightly to 78%. For more detailed insights into September weather, you can check Montreal weather in September.

July and October present quite a contrast in weather conditions. In July, temperatures range from a comfortable 10°C (50°F) at night to a scorching 35°C (95°F) during the day, with an average of 22°C (72°F). The month is characterized by relatively high humidity at 76%, accompanied by 103 mm (4.1 in) of precipitation over 14 days. In contrast, October sees a significant drop in temperatures, with nighttime lows plunging to -4°C (25°F) and daytime highs reaching up to 27°C (80°F), averaging only 10°C (50°F). Additionally, October experiences slightly more precipitation at 139 mm (5.5 in) over 13 days, along with increased humidity at 86%. For more detailed insights, check out Montreal weather in October.

In July, the weather in Montreal is characterized by warm temperatures, with an average of 22°C (72°F), and a maximum reaching up to 35°C (95°F). Precipitation is fairly common, occurring on about 14 days with a total of 103 mm (4.1 in), and the humidity tends to hover around 76%. In contrast, November brings a stark shift, featuring much colder temperatures, with an average of only 2°C (35°F) and a minimum that can plunge to -17°C (1°F). While the overall precipitation increases slightly to 118 mm (4.6 in) over 13 days, the humidity is notably higher at 88%. The dramatic differences in temperature and moisture highlight the contrasting seasons in Montreal. For more detailed information, you can check out Montreal weather in November.

In July, the weather is generally warm and humid, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 35°C (95°F) and an average of 22°C (72°F). The month sees about 103 mm (4.1 in) of precipitation over 14 days, making it a relatively wet summer month. In contrast, December brings a stark change, with significantly colder temperatures ranging from -26°C (-15°F) to a maximum of 14°C (57°F) and an average of -5°C (24°F). Precipitation is slightly lower at 88 mm (3.5 in) across 12 days, but the humidity is higher at 89%, which can make the cold feel even more pronounced. For a more detailed look at winter weather trends, you can refer to Montreal weather in December.

Compare Montreal's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Montreal

As July rolls into Montreal, the city experiences its warmest and most humid month of the year, offering a stark contrast to the cooler, drier winter months. With average temperatures rising to a pleasant 22°C (72°F) and occasional peaks reaching up to 35°C (95°F), outdoor activities thrive under the sun. However, with an average of 14 days of rain totaling 103 mm (4.1 in), it's wise to keep an umbrella handy amidst the sunshine. This lively combination of warmth and moisture creates a vibrant atmosphere perfect for festivals and outdoor adventures. To explore more about Montreal's unique weather patterns, check out Montreal Climate.