The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
August in Alert typically sees daytime highs of 5°C (41°F) and nighttime lows of 0°C (32°F). Expect some snow/rainfall during the month. It falls within the summer season.
If your ideal day consists of dry skies and pleasant temperatures, August typically offers the best circumstances for Alert.
Pick a month to see the average temperature, rainfall and sunshine in Alert - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Alert typically drop from around 6°C (43°F) at the start of August to approximately 1°C (34°F) by the end. Nights are very cold, with lows typically ranging from -4°C (25°F) to 1°C (34°F).
Browse day-by-day weather records for Alert spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 27 years of weather observations in Alert between 1999 and 2026, these are the recorded extremes.
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 →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
We recommend to layer up for chilly conditions in Alert in August. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Some rain is possible, so pack something to handle light showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Alert climate overview or explore weather in Canada.
Where to go in August - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Canada in September: Where Is the Best Weather?
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Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.