Brockville Weather in June
June in Brockville typically sees daytime highs of 23°C (73°F) and nighttime lows of 14°C (57°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.
Rainfall in Brockville in June
Typically, about 15 days will experience rainfall, with an average of 113 mm (4.4 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Brockville in June
June in Brockville brings high temperatures, with highs of 23°C (73°F) and nights around 14°C (57°F). During June, you'll experience the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Brockville in June
The city usually sees around 245 hours of sunlight, indicating many sunny days — a great month for sightseeing.For Brockville itself, May, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Brockville's climate page.
Brockville Temperature in June
Daily Historical Temperatures
49-year average (1977-2025)
Based on our historical records, temperatures in Brockville typically rise from around 21°C (70°F) at the start of June to approximately 25°C (77°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 13°C (55°F).
Average temperatures in June
Daily Historical Precipitation
49-year average (1977-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Historical weather for Brockville in June
Browse day-by-day weather records for Brockville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Brockville historical weather extremes in June
Based on 48 years of weather observations in Brockville between 1977 and 2025, these are the recorded extremes.
- Brockville recorded its highest June temperature of 34°C (93°F) on June 27, 2005.
- The lowest overnight temperature recorded in June was -3°C (27°F) (June 1, 2003).
- The wettest day in June Brockville was on June 24, 2023 with 41 mm (1.6 in) of precipitation.
Best Places in Canada in June
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in June →
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What to Wear in Brockville in June
For Brockville in June, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Brockville in June
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Brockville's climate page.
See the full Brockville climate overview or explore weather in Canada.