Moncton Weather in August
Thinking of visiting Moncton in August? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 14°C (57°F) at night, with the driest conditions of the year.
Rainfall in Moncton in August
Enjoy minimal rain interruptions this month. It's an excellent time for outdoor plans, from sports to festivals. Typically, about 11 days will experience rainfall, with an average of 80 mm (3.1 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Moncton in August
Weather in Moncton is at its perfect in August. Highs reach 25°C (77°F), while nights settle around 14°C (57°F). The month of August belongs to the summer season. This kind of day-to-night contrast is typical for this time of year. 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 Moncton in August
Enjoy a sunny month with about 241 hours of sunshine, the clear skies make Moncton even more beautiful.So this is a great month to visit if you prefer dry days with pleasant temperatures.
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 Moncton's climate page.
Moncton Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
38%
Precipitation
80 mm (3.1 in)
Rainy days
11 days
Sunshine
241 hours
Percentage Sunshine
55%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Moncton typically stay consistent throughout August, with daily highs averaging around 25°C (77°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Moncton in August
Browse day-by-day weather records for Moncton spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Moncton historical weather extremes in August
According to our 49 years of weather records for Moncton, the following extremes were recorded between 1976 and 2025.
- The warmest day in August was on August 12, 2025, with a maximum of 37°C (99°F).
- Moncton experienced its chilliest August day on August 29, 1986, reaching only 13°C (55°F).
- Moncton registered its coldest August night on August 28, 1989, with temperatures dropping to 3°C (37°F).
Best Places in Canada in August
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in August →
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What to Wear in Moncton in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Moncton in August
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 Moncton's climate page.
See the full Moncton climate overview or explore weather in Canada.
