Ajax
September
Weather in Ajax for September 2025
Your guide to Ajax weather in September - trends and predictions
In general, the average temperature in Ajax at the beginning of September is 24.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °C by the end of September.
With an average of 5 rainy days, Ajax experiences minimal rainfall in September.
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25
Dry days
5
Rainy days
0
Snow days
23°/14°
Temperatures
18 km/h
Avg max wind
70 %
Avg humidity
Ajax in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2  22° | 3  26° | 4 28° | 5 28° | 6  25° | 7  20° |
| 8  21° | 9 20° | 10 21° | 11  22° | 12  24° | 13 21° | 14 22° |
| 15 22° | 16 23° | 17 22° | 18 22° | 19 23° | 20 22° | 21 23° |
| 22 21° | 23 20° | 24 21° | 25 23° | 26 23° | 27 19° | 28 19° |
| 29 19° | 30 20° |
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Temperatures trend during September in Ajax
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 24° /14° | 0.3 mm | 6 | |
| 2 Sept. | Mist | 22° /12° | 0.6 mm | 6 | |
| 3 Sept. | Partly cloudy | 26° /15° | 0 mm | 7 | |
| 4 Sept. | Partly cloudy | 28° /17° | 0 mm | 7 | |
| 5 Sept. | Partly cloudy | 28° /18° | 0 mm | 7 | |
| 6 Sept. | Thundery outbreaks possible | 25° /18° | 2.2 mm | 6 | |
| 7 Sept. | Light rain shower | 20° /13° | 7 mm | 5 | |
| 8 Sept. | Overcast | 21° /11° | 0 mm | 5 | |
| 9 Sept. | Overcast | 20° /12° | 2.5 mm | 5 | |
| 10 Sept. | Overcast | 21° /14° | 0 mm | 6 | |
| 11 Sept. | Cloudy | 22° /16° | 0.1 mm | 5 | |
| 12 Sept. | Moderate rain | 24° /15° | 2.7 mm | 6 | |
| 13 Sept. | Overcast | 21° /13° | 0 mm | 5 | |
| 14 Sept. | Cloudy | 22° /13° | 0 mm | 6 | |
| 15 Sept. | Partly cloudy | 22° /13° | 0 mm | 6 | |
| 16 Sept. | Cloudy | 23° /14° | 0 mm | 6 | |
| 17 Sept. | Light rain shower | 22° /14° | 0.6 mm | 5 | |
| 18 Sept. | Mist | 22° /13° | 0 mm | 5 | |
| 19 Sept. | Sunny | 23° /11° | 0 mm | 6 | |
| 20 Sept. | Partly cloudy | 22° /10° | 0 mm | 6 | |
| 21 Sept. | Partly cloudy | 23° /16° | 0 mm | 6 | |
| 22 Sept. | Mist | 21° /14° | 2.6 mm | 5 | |
| 23 Sept. | Mist | 20° /15° | 18.8 mm | 5 | |
| 24 Sept. | Sunny | 21° /14° | 0 mm | 5 | |
| 25 Sept. | Overcast | 23° /15° | 20.3 mm | 5 | |
| 26 Sept. | Partly cloudy | 23° /15° | 0 mm | 6 | |
| 27 Sept. | Overcast | 19° /11° | 0 mm | 5 | |
| 28 Sept. | Overcast | 19° /13° | 0 mm | 4 | |
| 29 Sept. | Mist | 19° /15° | 0 mm | 4 | |
| 30 Sept. | Overcast | 20° /14° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Ajax in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ajax forecast closer to your planned date for the most up-to-date weather information.
Ajax in September - FAQ
What are the expected maximum and minimum temperatures in Ajax during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Ajax during September?
Expect minimal rainfall in Ajax during September, with a total of 19.9 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Ajax during September?
The average wind speed in Ajax during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Ajax
Explore the daily rainfall trends and prepare for Ajaxs September weather 💧
UV exposure in Ajax during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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