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Weather in Chatham for September 2026

Your guide to Chatham weather in September - trends and predictions

    Temperatures

  • So far, September 2026 in Chatham shows a warmer trend than usual by 3.9 °C.

  • Expect cooler weather in the next days in Chatham with the forecast suggesting a temperature of 22 °C, lower than the historical average.

  • In general, the average temperature in Chatham at the beginning of September is 25.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.9 °C by the end of September.

    • Rain 🌧️

  • Chatham experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 78.9 mm.

    • More

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Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/13°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Chatham Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
26°
2
Sunny
26°
3
Cloudy
28°
4
Partly cloudy
26°
5
Sunny
27°
6
Light rain shower
24°
7
Light rain shower
22°
8
Sunny
22°
9
Mist
24°
10
Overcast
24°
11
Fog
25°
12
Overcast
26°
13
Sunny
24°
14
Sunny
19°
15
Overcast
26°
16
Partly cloudy
25°
17
Overcast
23°
18
Light rain shower
30°
19
Light rain shower
19°
20
Sunny
18°
21
Sunny
19°
22
Sunny
20°
23
Sunny
23°
24
Sunny
16°
25
Sunny
20°
26
Light rain shower
22°
27
Patchy rain possible
23°
28
Moderate or heavy rain with thunder
20°
29
Patchy rain possible
22°
30
Mist
23°

Temperatures trend during September in Chatham

See the weather trend as well as the moving average line

September weather in Chatham day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 26° /12° 0 mm 5
2 Sept. Sunny
Sunny
 26° /13° 6.8 mm 6
3 Sept. Cloudy
Cloudy
 28° /16° 5.1 mm 6
4 Sept. Partly cloudy
Partly cloudy
 26° /15° 15.2 mm 5
5 Sept. Sunny
Sunny
 27° /16° 0 mm 7
6 Sept. Light rain shower
Light rain shower
 24° /14° 3 mm 6
7 Sept. Light rain shower
Light rain shower
 22° /12° 1.9 mm 6
8 Sept. Sunny
Sunny
 22° /10° 0.1 mm 4
9 Sept. Mist
Mist
 24° /13° 6.8 mm 5
10 Sept. Overcast
Overcast
 24° /14° 0 mm 5
11 Sept. Fog
Fog
 25° /13° 0.3 mm 6
12 Sept. Overcast
Overcast
 26° /14° 0.1 mm 5.1
13 Sept. Sunny
Sunny
 24° /15° 0 mm 5.9
14 Sept. Sunny
Sunny
 19° /11° 0 mm 5.2
15 Sept. Overcast
Overcast
 26° /16° 4.3 mm 6
16 Sept. Partly cloudy
Partly cloudy
 25° /19° 0.6 mm 6
17 Sept. Overcast
Overcast
 23° /17° 1.7 mm 5
18 Sept. Light rain shower
Light rain shower
 30° /17° 9.5 mm 7
19 Sept. Light rain shower
Light rain shower
 19° /12° 19.6 mm 4
20 Sept. Sunny
Sunny
 18° /11° 0 mm 5
21 Sept. Sunny
Sunny
 19° /10° 0 mm 5
22 Sept. Sunny
Sunny
 20° /13° 0 mm 5
23 Sept. Sunny
Sunny
 23° /16° 0 mm 6
24 Sept. Sunny
Sunny
 16° /11° 0 mm 5
25 Sept. Sunny
Sunny
 20° /10° 1.4 mm 5
26 Sept. Light rain shower
Light rain shower
 22° /13° 0.4 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 23° /15° 0 mm 5
28 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 20° /14° 6.1 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 22° /12° 0.2 mm 5
30 Sept. Mist
Mist
 23° /12° 0 mm 5
Next
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.
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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 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Chatham during September?
Moderate rainfall is anticipated in Chatham during September, with a total of 78.9 mm spread over approximately 9 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Chatham during September?
The average wind speed in Chatham during September is 17 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 💧
Typically, Chatham has 9 rainy days in September with a total of 78.9 mm of rainfall.

UV exposure in Chatham during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Chatham, located at latitude 42.412 and longitude -82.185. Stay updated with localized weather information tailored for Chatham.

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