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Weather in Waterville for September 2025

Your guide to Waterville weather in September - trends and predictions

    Temperatures

  • The forecast for the next days in Waterville predicts temperatures to be around 16 °C, close to the historical average.

  • In general, the average temperature in Waterville at the beginning of September is 15.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 12.9 °C by the end of September.

    • Rain 🌧️

  • The climate of Waterville in September is notably wet, with an average of 15 rainy days, and a total of 98.8 mm of precipitation.

Average dry days
15
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/11°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Waterville Weather September

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

Temperatures trend during September in Waterville

See the weather trend as well as the moving average line

September weather in Waterville day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /13° 10.4 mm 4
2 Sept. Patchy rain possible
Patchy rain possible
 15° /12° 2.9 mm 4
3 Sept. Moderate rain at times
Moderate rain at times
 15° /12° 13.2 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
 14° /12° 4.8 mm 4
5 Sept. Cloudy
Cloudy
 16° /11° 0 mm 4
6 Sept. Patchy rain possible
Patchy rain possible
 17° /15° 3.8 mm 0.6
7 Sept. Moderate rain
Moderate rain
 14° /13° 5.5 mm 0.7
8 Sept. Moderate rain
Moderate rain
 15° /12° 7 mm 1
9 Sept. Moderate rain
Moderate rain
 17° /14° 11 mm 0.7
10 Sept. Patchy rain possible
Patchy rain possible
 16° /13° 0.8 mm 3
11 Sept. Patchy rain possible
Patchy rain possible
 15° /13° 2.1 mm 3
12 Sept. Patchy rain possible
Patchy rain possible
 15° /13° 1.1 mm 3
13 Sept. Patchy rain possible
Patchy rain possible
 16° /14° 3.4 mm 3
14 Sept. Patchy rain possible
Patchy rain possible
 16° /13° 0.1 mm 3
15 Sept. Patchy rain possible
Patchy rain possible
 16° /15° 0.1 mm 4
16 Sept. Sunny
Sunny
 17° /14° 0 mm 5
17 Sept. Sunny
Sunny
 18° /14° 0 mm 5
18 Sept. Sunny
Sunny
 19° /14° 0 mm 5
19 Sept. Cloudy
Cloudy
 21° /12° 0 mm 5
20 Sept. Sunny
Sunny
 19° /11° 0 mm 5
21 Sept. Overcast
Overcast
 17° /12° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 16° /12° 0.3 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 16° /13° 0.5 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 13° /10° 1.8 mm 3
25 Sept. Heavy rain at times
Heavy rain at times
 13° /8° 11.2 mm 3
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /8° 12.6 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 12° /10° 1.4 mm 3
28 Sept. Overcast
Overcast
 13° /9° 0 mm 3
29 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /11° 25.9 mm 3
30 Sept. Patchy rain possible
Patchy rain possible
 13° /11° 0.7 mm 3
Next
Important Notice
Our weather forecast for Waterville 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 Waterville forecast closer to your planned date for the most up-to-date weather information.
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Waterville in September - FAQ

What are the expected maximum and minimum temperatures in Waterville during September?
During September, expect a variety of temperatures with highs around 15° and lows near 11°, suitable for diverse activities and preferences.
How much rainfall should be expected in Waterville during September?
Moderate rainfall is anticipated in Waterville during September, with a total of 98.8 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Waterville during September?
The average wind speed in Waterville during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Waterville

Explore the daily rainfall trends and prepare for Watervilles September weather 💧

UV exposure in Waterville during September

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

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Location coordinates Where is Waterville?

Get accurate weather forecasts for Waterville, located at latitude 51.833 and longitude -10.167. Stay updated with localized weather information tailored for Waterville.

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