Marion (Happy Valley)
September
Weather in Marion for September 2025
Your guide to Marion weather in September - trends and predictions
In general, the average temperature in Marion at the beginning of September is 16 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 17.9 °C by the end of September.
Marion sees moderate rainfall in September, averaging 7 rainy days.
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23
Dry days
7
Rainy days
0
Snow days
17°/10°
Temperatures
23 km/h
Avg max wind
66 %
Avg humidity
Marion in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  14° | 2 14° | 3  16° | 4  19° | 5 17° | 6 19° | 7  13° |
| 8 13° | 9 13° | 10  15° | 11 15° | 12 16° | 13 17° | 14 18° |
| 15 14° | 16 16° | 17 16° | 18 18° | 19 15° | 20 14° | 21 15° |
| 22 15° | 23 16° | 24 20° | 25 16° | 26 15° | 27  17° | 28 20° |
| 29 18° | 30 19° |
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Temperatures trend during September in Marion
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. | Overcast | 14° /10° | 1.1 mm | 5 | |
| 2 Sept. | Overcast | 14° /8° | 0.1 mm | 5 | |
| 3 Sept. | Partly cloudy | 16° /9° | 0 mm | 6 | |
| 4 Sept. | Patchy light rain | 19° /10° | 3.7 mm | 6 | |
| 5 Sept. | Overcast | 17° /11° | 0.4 mm | 5 | |
| 6 Sept. | Partly cloudy | 19° /9° | 6.3 mm | 6 | |
| 7 Sept. | Light rain shower | 13° /9° | 21.7 mm | 4 | |
| 8 Sept. | Light rain shower | 13° /9° | 8 mm | 4 | |
| 9 Sept. | Overcast | 13° /8° | 0.3 mm | 4 | |
| 10 Sept. | Sunny | 15° /7° | 0 mm | 5 | |
| 11 Sept. | Partly cloudy | 15° /8° | 0.3 mm | 5 | |
| 12 Sept. | Sunny | 16° /9° | 0 mm | 6 | |
| 13 Sept. | Overcast | 17° /9° | 0 mm | 5 | |
| 14 Sept. | Overcast | 18° /10° | 0.1 mm | 5 | |
| 15 Sept. | Partly cloudy | 14° /8° | 0 mm | 6 | |
| 16 Sept. | Sunny | 16° /7° | 0 mm | 6 | |
| 17 Sept. | Partly cloudy | 16° /8° | 0 mm | 6 | |
| 18 Sept. | Overcast | 18° /9° | 0 mm | 6 | |
| 19 Sept. | Sunny | 15° /11° | 0.5 mm | 5 | |
| 20 Sept. | Patchy rain possible | 14° /11° | 2 mm | 4 | |
| 21 Sept. | Patchy rain possible | 15° /9° | 1.1 mm | 5 | |
| 22 Sept. | Overcast | 15° /8° | 0.5 mm | 5 | |
| 23 Sept. | Sunny | 16° /9° | 0 mm | 5 | |
| 24 Sept. | Partly cloudy | 20° /12° | 0.1 mm | 6 | |
| 25 Sept. | Sunny | 16° /10° | 0.5 mm | 5 | |
| 26 Sept. | Overcast | 15° /7° | 0.2 mm | 5 | |
| 27 Sept. | Cloudy | 17° /7° | 0 mm | 6 | |
| 28 Sept. | Sunny | 20° /11° | 0.6 mm | 6 | |
| 29 Sept. | Sunny | 18° /12° | 0.6 mm | 6 | |
| 30 Sept. | Sunny | 19° /13° | 0.3 mm | 6 | |
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Important Notice
Our weather forecast for Marion 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 Marion forecast closer to your planned date for the most up-to-date weather information.
Marion in September - FAQ
What are the expected maximum and minimum temperatures in Marion during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Marion during September?
Moderate rainfall is anticipated in Marion during September, with a total of 65.4 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Marion during September?
The average wind speed in Marion during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Marion
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