Saint Peters
September
Weather in Saint Peters for September 2025
Your guide to Saint Peters weather in September - trends and predictions
In general, the average temperature in Saint Peters at the beginning of September is 19.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 16.9 °C by the end of September.
Saint Peters in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 93.3 mm.
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Temperatures
Rain 🌧️
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11
Dry days
19
Rainy days
0
Snow days
18°/15°
Temperatures
29 km/h
Avg max wind
77 %
Avg humidity
Saint Peters in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2 20° | 3  20° | 4  18° | 5 19° | 6 20° | 7 20° |
| 8 20° | 9 20° | 10  21° | 11 18° | 12 17° | 13 17° | 14 17° |
| 15 19° | 16 18° | 17 18° | 18 19° | 19  19° | 20 19° | 21 18° |
| 22 18° | 23 17° | 24 18° | 25 18° | 26 18° | 27  16° | 28 15° |
| 29 16° | 30 17° |
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Temperatures trend during September in Saint Peters
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 | 19° /17° | 7.9 mm | 5 | |
| 2 Sept. | Patchy rain possible | 20° /17° | 0.3 mm | 5 | |
| 3 Sept. | Overcast | 20° /17° | 1 mm | 5 | |
| 4 Sept. | Sunny | 18° /17° | 1.6 mm | 5 | |
| 5 Sept. | Overcast | 19° /17° | 3.5 mm | 5 | |
| 6 Sept. | Sunny | 20° /17° | 2.1 mm | 5 | |
| 7 Sept. | Sunny | 20° /18° | 7.5 mm | 5 | |
| 8 Sept. | Overcast | 20° /16° | 2.8 mm | 5 | |
| 9 Sept. | Sunny | 20° /17° | 0.4 mm | 5 | |
| 10 Sept. | Partly cloudy | 21° /16° | 2.2 mm | 5 | |
| 11 Sept. | Partly cloudy | 18° /14° | 0.6 mm | 5 | |
| 12 Sept. | Overcast | 17° /13° | 1.4 mm | 4 | |
| 13 Sept. | Overcast | 17° /14° | 0.1 mm | 4 | |
| 14 Sept. | Sunny | 17° /13° | 0 mm | 5 | |
| 15 Sept. | Sunny | 19° /15° | 0 mm | 6 | |
| 16 Sept. | Sunny | 18° /16° | 0.1 mm | 5 | |
| 17 Sept. | Patchy rain possible | 18° /17° | 0.8 mm | 4 | |
| 18 Sept. | Light rain shower | 19° /15° | 3.3 mm | 5 | |
| 19 Sept. | Light rain | 19° /16° | 1.5 mm | 5 | |
| 20 Sept. | Light rain | 19° /16° | 5.2 mm | 4 | |
| 21 Sept. | Patchy rain possible | 18° /15° | 6.5 mm | 4 | |
| 22 Sept. | Light rain shower | 18° /14° | 13.8 mm | 4 | |
| 23 Sept. | Partly cloudy | 17° /13° | 3.7 mm | 5 | |
| 24 Sept. | Partly cloudy | 18° /14° | 0.4 mm | 5 | |
| 25 Sept. | Patchy rain possible | 18° /14° | 7.9 mm | 4 | |
| 26 Sept. | Light rain shower | 18° /15° | 5.1 mm | 4 | |
| 27 Sept. | Cloudy | 16° /13° | 4.7 mm | 4 | |
| 28 Sept. | Partly cloudy | 15° /11° | 0 mm | 5 | |
| 29 Sept. | Light rain shower | 16° /13° | 0.8 mm | 4 | |
| 30 Sept. | Partly cloudy | 17° /13° | 8.2 mm | 5 | |
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Important Notice
Our weather forecast for Saint Peters 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 Saint Peters forecast closer to your planned date for the most up-to-date weather information.
Saint Peters in September - FAQ
What are the expected maximum and minimum temperatures in Saint Peters during September?
During September, expect a variety of temperatures with highs around 18° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Peters during September?
Moderate rainfall is anticipated in Saint Peters during September, with a total of 93.3 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Saint Peters during September?
The average wind speed in Saint Peters during September is 29 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Saint Peters
Explore the daily rainfall trends and prepare for Saint Peterss September weather 💧
UV exposure in Saint Peters during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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