July Weather in Mattawa, Canada

Last updated: June 18, 2025

In Mattawa, Canada, the average temperature for July hovers around 20°C (68°F). You can expect a minimum temperature of 7°C (44°F), while the mercury can rise to a maximum of 35°C (96°F). With a precipitation amount of 95 mm (3.7 in) spread over 11 days, and an average humidity level of 71%, it's a month that balances warmth with the refreshing touch of occasional rain.

July Temperature in Mattawa

In July in Mattawa, the average temperature is 20°C (68°F), with maximums reaching 35°C (96°F) and minimums dropping as low as 7°C (44°F). It's a great time to visit for those who enjoy warm days and cooler evenings.

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

The chart illustrates July temperature patterns in Mattawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mattawa, July typically has an average temperature of 20°C (68°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (44°F).

Data source: Temperature data for Mattawa generated using information from the Copernicus Climate Change Service.

July Precipitation in Mattawa

In Mattawa in July, the total precipitation amount is 95 mm (3.7 in) spread over 11 days.

July Precipitation Trends in Mattawa

The chart displays monthly precipitation patterns in Mattawa, 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. In Mattawa, July typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Mattawa

In Mattawa in July, humidity is 71%. With an average temperature of 20°C (68°F), this humidity feels like a warm, moist embrace that can quickly lead to discomfort for travelers. The air clings to your skin, making even short walks feel more strenuous, while reaching for a refreshing drink becomes essential to stay hydrated.

July Average Humidity in Mattawa

This chart illustrates the average monthly humidity levels in Mattawa, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Mattawa is approximately 71%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Mattawa

In Mattawa in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mattawa.

Maximum UV Index Levels in Mattawa for July

The chart shows the monthly maximum UV Index (UVI) for Mattawa 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. In July, the maximum UV index in Mattawa typically reaches 9, which falls under the very high exposure category.

Data source: Mattawa 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.

How July Weather in Mattawa Compares to Other Months

Weather in Mattawa varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Mattawa, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Mattawa, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-11°C (13°F)	55 mm (2.2 inches)	96%	low
February Weather	-10°C (15°F)	66 mm (2.6 inches)	95%	moderate
March Weather	-4°C (24°F)	61 mm (2.4 inches)	89%	moderate
April Weather	3°C (38°F)	99 mm (3.9 inches)	85%	high
May Weather	11°C (53°F)	103 mm (4.1 inches)	74%	very high
June Weather	17°C (62°F)	106 mm (4.2 inches)	67%	very high
July Weather	20°C (68°F)	95 mm (3.7 inches)	71%	very high
August Weather	18°C (65°F)	116 mm (4.6 inches)	71%	very high
September Weather	14°C (57°F)	105 mm (4.2 inches)	76%	high
October Weather	7°C (46°F)	103 mm (4.0 inches)	86%	moderate
November Weather	-1°C (31°F)	86 mm (3.4 inches)	90%	moderate
December Weather	-7°C (19°F)	76 mm (3.0 inches)	94%	low