Saco (ME)
September
Weather in Saco, Maine for September 2025
Your guide to Saco weather in September - trends and predictions
In general, the average temperature in Saco at the beginning of September is 22.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.1 °F by the end of September.
With an average of 5 rainy days, Saco experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
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25
Dry days
5
Rainy days
0
Snow days
20°/13°
Temperatures
15 km/h
Avg max wind
77 %
Avg humidity
Saco Weather September
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Temperatures trend during September in Saco
See the weather trend as well as the moving average line
September weather in Saco day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 24° /18° | 4 mm | 5 | |
| Sept. 2 |  Partly cloudy | 23° /12° | 0 mm | 6 | |
| Sept. 3 |  Sunny | 21° /9° | 0 mm | 6 | |
| Sept. 4 | Sunny | 23° /12° | 0 mm | 6 | |
| Sept. 5 | Sunny | 22° /13° | 0 mm | 6 | |
| Sept. 6 |  Overcast | 20° /12° | 0 mm | 5 | |
| Sept. 7 | Overcast | 22° /12° | 0.2 mm | 5 | |
| Sept. 8 | Sunny | 19° /11° | 0.1 mm | 5 | |
| Sept. 9 | Partly cloudy | 21° /10° | 0 mm | 6 | |
| Sept. 10 | Sunny | 22° /11° | 0 mm | 6 | |
| Sept. 11 | Sunny | 22° /10° | 0 mm | 6 | |
| Sept. 12 | Partly cloudy | 23° /12° | 0 mm | 6 | |
| Sept. 13 |  Cloudy | 25° /14° | 0 mm | 6 | |
| Sept. 14 | Partly cloudy | 22° /14° | 0 mm | 6 | |
| Sept. 15 | Partly cloudy | 23° /14° | 0 mm | 6 | |
| Sept. 16 | Sunny | 25° /13° | 0 mm | 7 | |
| Sept. 17 | Cloudy | 24° /13° | 0 mm | 5 | |
| Sept. 18 | Overcast | 22° /14° | 0 mm | 5 | |
| Sept. 19 | Overcast | 19° /13° | 0 mm | 4 | |
| Sept. 20 |  Moderate rain at times | 17° /15° | 4.8 mm | 4 | |
| Sept. 21 | Moderate rain at times | 17° /14° | 8.8 mm | 4 | |
| Sept. 22 | Patchy rain possible | 16° /12° | 0.2 mm | 4 | |
| Sept. 23 | Patchy rain possible | 15° /12° | 0.1 mm | 4 | |
| Sept. 24 | Cloudy | 17° /12° | 0 mm | 4 | |
| Sept. 25 |  Heavy rain at times | 15° /10° | 3.5 mm | 4 | |
| Sept. 26 | Moderate or heavy rain shower | 15° /14° | 88.6 mm | 4 | |
| Sept. 27 | Overcast | 20° /12° | 0 mm | 5 | |
| Sept. 28 | Cloudy | 17° /13° | 0 mm | 4 | |
| Sept. 29 | Overcast | 17° /12° | 0 mm | 4 | |
| Sept. 30 | Cloudy | 19° /14° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Saco 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 Saco forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saco in September - FAQ
What are the expected maximum and minimum temperatures in Saco during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Saco during September?
Significant rainfall exceeding 110.3 mm is expected in Saco during September, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saco during September?
The average wind speed in Saco during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Saco
Explore the daily rainfall trends and prepare for Sacos September weather 💧
UV exposure in Saco during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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