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Weather in Dartmouth for September 2027

Your guide to Dartmouth weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Dartmouth at the beginning of September is 20 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 18.1 °C by the end of September.

    • Rain 🌧️

  • Dartmouth experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 242.8 mm.

    • More

  • Is September a good time to visit Dartmouth? check out the best time to travel to Dartmouth page.

  • ✨ Is September a good time to visit Dartmouth? – Ask the AI Weatherman

Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/12°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Dartmouth Weather September

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

Temperatures trend during September in Dartmouth

See the weather trend as well as the moving average line

September weather in Dartmouth day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain
Light rain
 21° /12° 4.3 mm 6
2 Sept. Light rain
Light rain
 20° /13° 7.6 mm 6
3 Sept. Patchy rain possible
Patchy rain possible
 19° /13° 1.4 mm 4
4 Sept. Heavy rain
Heavy rain
 21° /13° 33.8 mm 4
5 Sept. Overcast
Overcast
 21° /14° 0.4 mm 4
6 Sept. Heavy rain
Heavy rain
 18° /15° 45.5 mm 4
7 Sept. Heavy rain
Heavy rain
 20° /16° 26 mm 4
8 Sept. Light rain
Light rain
 21° /15° 7.6 mm 5
9 Sept. Overcast
Overcast
 20° /12° 0 mm 5
10 Sept. Heavy rain
Heavy rain
 21° /13° 33.2 mm 4
11 Sept. Light rain
Light rain
 21° /13° 2.6 mm 5
12 Sept. Sunny
Sunny
 20° /12° 0 mm 6
13 Sept. Fog
Fog
 20° /12° 0.1 mm 4
14 Sept. Moderate rain
Moderate rain
 21° /14° 18.5 mm 4
15 Sept. Patchy rain possible
Patchy rain possible
 20° /11° 2.4 mm 5
16 Sept. Moderate rain
Moderate rain
 21° /12° 10.6 mm 5
17 Sept. Patchy rain possible
Patchy rain possible
 22° /13° 2.1 mm 4
18 Sept. Light rain
Light rain
 19° /13° 3.7 mm 4
19 Sept. Moderate rain
Moderate rain
 19° /13° 10.3 mm 5
20 Sept. Overcast
Overcast
 16° /10° 0.1 mm 4
21 Sept. Patchy rain possible
Patchy rain possible
 18° /9° 2.2 mm 4
22 Sept. Cloudy
Cloudy
 17° /9° 0 mm 4
23 Sept. Overcast
Overcast
 17° /9° 0 mm 4
24 Sept. Mist
Mist
 18° /9° 0 mm 4
25 Sept. Overcast
Overcast
 18° /9° 0.6 mm 3
26 Sept. Moderate rain
Moderate rain
 17° /10° 12.5 mm 4
27 Sept. Light rain
Light rain
 19° /11° 9.4 mm 4
28 Sept. Light rain
Light rain
 18° /11° 6.3 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 20° /11° 1.3 mm 4
30 Sept. Fog
Fog
 18° /11° 0.3 mm 3
Next
Important Notice
Our weather forecast for Dartmouth 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 Dartmouth forecast closer to your planned date for the most up-to-date weather information.
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Dartmouth in September - FAQ

What are the expected maximum and minimum temperatures in Dartmouth during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Dartmouth during September?
Significant rainfall exceeding 242.8 mm is expected in Dartmouth during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Dartmouth during September?
The average wind speed in Dartmouth during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Dartmouth

Explore the daily rainfall trends and prepare for Dartmouths September weather 💧
Typically, Dartmouth has 9 rainy days in September with a total of 242.8 mm of rainfall.

UV exposure in Dartmouth 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 Dartmouth, located at latitude 44.671 and longitude -63.577. Stay updated with localized weather information tailored for Dartmouth.

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