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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 22.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.4 °C by the end of September.

  • Chatham sees moderate rainfall in September, averaging 8 rainy days.

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/14°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Chatham in September average weather

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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. Light rain shower
Light rain shower
23° /15° 4.9 mm 6
2 Sept. Patchy rain possible
Patchy rain possible
22° /15° 0.2 mm 5
3 Sept. Overcast
Overcast
23° /14° 0.7 mm 5
4 Sept. Sunny
Sunny
21° /14° 3.4 mm 5
5 Sept. Overcast
Overcast
21° /15° 3.8 mm 5
6 Sept. Sunny
Sunny
24° /16° 3.3 mm 6
7 Sept. Sunny
Sunny
24° /15° 7.3 mm 6
8 Sept. Partly cloudy
Partly cloudy
23° /15° 2.4 mm 6
9 Sept. Sunny
Sunny
23° /15° 0.1 mm 6
10 Sept. Partly cloudy
Partly cloudy
23° /15° 2.1 mm 6
11 Sept. Partly cloudy
Partly cloudy
20° /11° 0.1 mm 5
12 Sept. Overcast
Overcast
18° /10° 0.1 mm 4
13 Sept. Overcast
Overcast
17° /11° 0 mm 5
14 Sept. Partly cloudy
Partly cloudy
20° /10° 0 mm 6
15 Sept. Sunny
Sunny
22° /11° 0 mm 6
16 Sept. Sunny
Sunny
21° /12° 0 mm 5
17 Sept. Overcast
Overcast
20° /13° 0.1 mm 5
18 Sept. Light rain shower
Light rain shower
21° /13° 2.1 mm 5
19 Sept. Light drizzle
Light drizzle
19° /14° 1.2 mm 5
20 Sept. Moderate rain
Moderate rain
20° /14° 13.9 mm 5
21 Sept. Light rain shower
Light rain shower
20° /13° 3.8 mm 5
22 Sept. Light rain shower
Light rain shower
18° /12° 9.9 mm 4
23 Sept. Partly cloudy
Partly cloudy
18° /10° 1.9 mm 5
24 Sept. Overcast
Overcast
18° /11° 0.5 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
19° /12° 8.9 mm 5
26 Sept. Light rain shower
Light rain shower
19° /12° 6.6 mm 5
27 Sept. Mist
Mist
17° /10° 3 mm 4
28 Sept. Cloudy
Cloudy
16° /8° 0 mm 4
29 Sept. Light rain shower
Light rain shower
16° /10° 0.9 mm 4
30 Sept. Partly cloudy
Partly cloudy
17° /10° 8.7 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 22° 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 47.7 mm across approximately 8 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 21 km/h, suggesting breezy to windy conditions, depending on your activities.

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Location coordinates Where is Chatham?

Get accurate weather forecasts for Chatham, located at latitude 51.379 and longitude 0.528. Stay updated with localized weather information tailored for Chatham.

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