Chatham
September
Weather in Chatham for September 2025
Your guide to Chatham weather in September - trends and predictions
In general, the average temperature in Chatham at the beginning of September is 25.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.6 °C by the end of September.
Chatham experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 46.5 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
23°/14°
Temperatures
18 km/h
Avg max wind
74 %
Avg humidity
Chatham in September average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  24° | 2 22° | 3  27° | 4  28° | 5 30° | 6  26° | |
| 7 21° | 8 20° | 9 24° | 10  24° | 11 24° | 12  24° | 13 22° |
| 14 23° | 15  25° | 16 25° | 17 23° | 18 22° | 19 23° | 20 24° |
| 21 26° | 22 24° | 23 21° | 24 22° | 25  24° | 26 22° | 27 21° |
| 28  19° | 29 21° | 30 22° |
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Temperatures trend during September in Chatham
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. | Mist | 24° /11° | 0.1 mm | 5 | |
| 2 Sept. | Mist | 22° /12° | 0 mm | 6 | |
| 3 Sept. | Cloudy | 27° /14° | 0 mm | 7 | |
| 4 Sept. | Partly cloudy | 28° /16° | 0 mm | 7 | |
| 5 Sept. | Partly cloudy | 30° /19° | 0 mm | 8 | |
| 6 Sept. | Light rain shower | 26° /16° | 6.1 mm | 6 | |
| 7 Sept. | Light rain shower | 21° /13° | 3.8 mm | 5 | |
| 8 Sept. | Mist | 20° /10° | 0.1 mm | 5 | |
| 9 Sept. | Mist | 24° /11° | 0 mm | 6 | |
| 10 Sept. | Overcast | 24° /14° | 0 mm | 6 | |
| 11 Sept. | Fog | 24° /14° | 0.6 mm | 6 | |
| 12 Sept. | Moderate or heavy rain shower | 24° /14° | 8.4 mm | 6 | |
| 13 Sept. | Mist | 22° /12° | 0 mm | 6 | |
| 14 Sept. | Cloudy | 23° /13° | 0 mm | 6 | |
| 15 Sept. | Sunny | 25° /12° | 0 mm | 7 | |
| 16 Sept. | Mist | 25° /14° | 0 mm | 6 | |
| 17 Sept. | Mist | 23° /13° | 0.1 mm | 5 | |
| 18 Sept. | Light rain shower | 22° /12° | 0.4 mm | 5 | |
| 19 Sept. | Overcast | 23° /11° | 0 mm | 5 | |
| 20 Sept. | Overcast | 24° /13° | 0 mm | 5 | |
| 21 Sept. | Cloudy | 26° /17° | 0 mm | 6 | |
| 22 Sept. | Fog | 24° /14° | 5.2 mm | 6 | |
| 23 Sept. | Mist | 21° /12° | 10.9 mm | 5 | |
| 24 Sept. | Overcast | 22° /12° | 0 mm | 5 | |
| 25 Sept. | Patchy light drizzle | 24° /14° | 0.7 mm | 5 | |
| 26 Sept. | Light rain shower | 22° /13° | 0.7 mm | 6 | |
| 27 Sept. | Patchy rain possible | 21° /13° | 0 mm | 5 | |
| 28 Sept. | Moderate or heavy rain with thunder | 19° /15° | 9.1 mm | 4 | |
| 29 Sept. | Patchy rain possible | 21° /15° | 0.2 mm | 5 | |
| 30 Sept. | Mist | 22° /15° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Chatham 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 Chatham forecast closer to your planned date for the most up-to-date weather information.
Chatham in September - FAQ
What are the expected maximum and minimum temperatures in Chatham 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 Chatham during September?
In September, Chatham can expect light to moderate rainfall, totaling 46.5 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Chatham during September?
The average wind speed in Chatham during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Chatham
Explore the daily rainfall trends and prepare for Chathams September weather 💧
UV exposure in Chatham during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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