Saco (ME)
September
Weather in Saco, Maine for September 2026
Your guide to Saco weather in September - trends and predictions
So far, September 2026 in Saco is slightly warmer than the historical average by 0.7 °F.
The forecast for the upcoming days in Saco predicts a temperature of 16.4 °F, which is slightly above the historical average.
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 15.6 °F by the end of September.
Saco experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 118.9 mm.
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Temperatures
Rain 🌧️
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23
Dry days
7
Rainy days
0
Snow days
21°/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 | 23° /14° | 3.3 mm | 4 | |
| Sept. 2 |  Partly cloudy | 21° /14° | 0 mm | 4 | |
| Sept. 3 |  Sunny | 21° /12° | 6.5 mm | 4 | |
| Sept. 4 |  Fog | 23° /14° | 0 mm | 5 | |
| Sept. 5 | Sunny | 22° /15° | 1.8 mm | 5 | |
| Sept. 6 |  Overcast | 23° /14° | 0.6 mm | 5 | |
| Sept. 7 | Overcast | 22° /11° | 10.4 mm | 5 | |
| Sept. 8 | Sunny | 23° /12° | 0.3 mm | 4 | |
| Sept. 9 | Partly cloudy | 21° /11° | 2.1 mm | 4 | |
| Sept. 10 | Sunny | 24° /13° | 4.7 mm | 4 | |
| Sept. 11 | Sunny | 24° /10° | 0 mm | 6 | |
| Sept. 12 | Partly cloudy | 22° /10° | 0 mm | 6 | |
| Sept. 13 |  Cloudy | 21° /12° | 3.7 mm | 4 | |
| Sept. 14 | Partly cloudy | 22° /13° | 0 mm | 6 | |
| Sept. 15 | Partly cloudy | 21° /11° | 0 mm | 6 | |
| Sept. 16 | Sunny | 23° /12° | 0 mm | 4 | |
| Sept. 17 | Cloudy | 22° /12° | 10.4 mm | 4 | |
| Sept. 18 | Overcast | 24° /13° | 1 mm | 5 | |
| Sept. 19 | Overcast | 20° /11° | 0 mm | 5 | |
| Sept. 20 | Overcast | 15° /8° | 9.2 mm | 0.9 | |
| Sept. 21 | Overcast | 19° /9° | 0.1 mm | 5 | |
| Sept. 22 | Overcast | 15° /8° | 0 mm | 3.6 | |
| Sept. 23 | Sunny | 15° /5° | 0 mm | 5 | |
| Sept. 24 | Overcast | 17° /6° | 0 mm | 4.3 | |
| Sept. 25 | Overcast | 14° /11° | 12.6 mm | 3 | |
| Sept. 26 | Overcast | 18° /12° | 2.7 mm | 4 | |
| Sept. 27 | Overcast | 14° /8° | 0 mm | 4 | |
| Sept. 28 | Overcast | 15° /7° | 0 mm | 4 | |
| Sept. 29 | Sunny | 17° /6° | 0 mm | 5 | |
| Sept. 30 | Overcast | 14° /7° | 2.8 mm | 3 | |
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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 21° 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 118.9 mm is expected in Saco during September, occurring over more than 7 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 💧
Typically, Saco has 7 rainy days in September with a total of 118.9 mm of rainfall.
UV exposure in Saco during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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