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Ajax Weather in September
September is one of the excellent months to visit Ajax, with daytime temperatures of 22°C (72°F) and lows of 14°C (57°F) at night. Do note that quite a bit of rainfall is typical, averaging around 88 mm (3.5 in).
Rainfall in Ajax in September
Looking at the last 30 years, the data shows about 10 days with rain, averaging 88 mm (3.5 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Ajax in September
September is a good time to be in Ajax. Days are excellent, reaching 22°C (72°F), with nights around 14°C (57°F). September is part of the summer season. Conditions are often most pleasant around the middle of the day. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Ajax in September
There are approximately 195 hours of sunshine this month, resulting in mostly clear days.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Ajax.
Ajax Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
22°C (72°F)
Chance of Rain
33%
Precipitation
88 mm (3.5 in)
Rainy days
10 days
Humidity
87% *
Sunshine
195 hours *
Percentage Sunshine
52% *
* Data from: Toronto, Canada (36 KM, 22 Miles).
Ajax Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ajax - and find the best time to visit.
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in September →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Ajax in September
Pleasant temperatures in September 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Ajax in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Ajax 3-Day Forecast
More climate data for Ajax
Temperature Rainfall Sunshine Humidity
See the full Ajax climate overview or explore weather in Canada.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) Bucket list
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