Delta Weather & Climate: Best Time to Visit

Delta, located in the Rideau Lakes region of Canada, is a small community surrounded by lakes, forests, and heritage sites. The weather here changes noticeably through the seasons. Summers are warm and great for outdoor activities, while winters can be very cold with frequent snowfall. The area is also known for its heavy precipitation throughout the year, including both rain and snow. Now, let’s explore all the climate details to give you a complete picture.

Monthly Temperature in Delta

The climate in Delta is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold -2°C (28°F) in the coolest month, January.

Nights vary from 17°C (63°F) in July to around -12°C (10°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Delta

Delta has a notably wet climate with abundant precipitation, recording 1056 mm (42 in) of rain/snowfall per year. Precipitation levels in Delta remain relatively steady throughout the year. April has the most rain, with 103 mm (4.1 in) over 11 days. In the driest month February, this drops slightly to 68 mm (2.7 in), making the city's climate fairly predictable. For more details, please visit our Delta Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Sunshine Hours in Delta

For those who appreciate different seasons, Delta serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.3 hours of sunshine daily, and embrace the darker days in December, offering only 2.5 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Kingston, Canada (50 KM, 31 Miles).

Daily hours of sunshine

Data from: Kingston, Canada (50 KM, 31 Miles).

Daily percentage of sunshine

Data from: Kingston, Canada (50 KM, 31 Miles).

Delta 3-Day Forecast

10-Day Forecast

Select a Month

Check the conditions for any month of the year.

Best Time to Visit Delta

Delta's weather is most enjoyable during May, June, July, August and September, with comfortable temperatures from 19°C (65°F) to 27°C (80°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 83 mm (3.3 in) and 99 mm (3.9 in), providing a good balance of sunny and rainy days.

Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.