Washington County (Zion National Park)
September
Weather in Washington County, Utah for September 2027
Your guide to Washington County weather in September - trends and predictions
In general, the average temperature in Washington County at the beginning of September is 26.5 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23 °C by the end of September.
With an average of 5 rainy days, Washington County experiences minimal rainfall in September.
Is September a good time to visit Washington County? check out the best time to travel to Washington County page.
✨ Is September a good time to visit Washington County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
25
Dry days
5
Rainy days
0
Snow days
24°/15°
Temperatures
20 km/h
Avg max wind
38 %
Avg humidity
Washington County Weather September
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Temperatures trend during September in Washington County
See the weather trend as well as the moving average line
September weather in Washington County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 27° /18° | 0.2 mm | 7 | |
| Sept. 2 | Sunny | 27° /19° | 0 mm | 7 | |
| Sept. 3 |  Patchy rain possible | 27° /18° | 0.1 mm | 7 | |
| Sept. 4 |  Partly cloudy | 28° /18° | 0 mm | 7 | |
| Sept. 5 |  Moderate rain | 27° /16° | 11.3 mm | 7 | |
| Sept. 6 |  Light rain | 23° /14° | 9.4 mm | 5 | |
| Sept. 7 | Patchy rain possible | 26° /15° | 0 mm | 6 | |
| Sept. 8 | Sunny | 26° /16° | 0.8 mm | 7 | |
| Sept. 9 | Patchy rain possible | 26° /16° | 0.3 mm | 7 | |
| Sept. 10 | Patchy rain possible | 27° /15° | 0 mm | 7 | |
| Sept. 11 | Sunny | 26° /17° | 0.3 mm | 6 | |
| Sept. 12 |  Overcast | 24° /16° | 0 mm | 6 | |
| Sept. 13 | Sunny | 24° /14° | 0.1 mm | 6 | |
| Sept. 14 | Patchy rain possible | 25° /14° | 0.1 mm | 6 | |
| Sept. 15 | Patchy rain possible | 24° /15° | 1.4 mm | 5 | |
| Sept. 16 | Patchy rain possible | 24° /15° | 0.8 mm | 5 | |
| Sept. 17 | Patchy rain possible | 21° /13° | 1.8 mm | 5 | |
| Sept. 18 | Overcast | 22° /12° | 0.1 mm | 5 | |
| Sept. 19 | Sunny | 22° /13° | 0.4 mm | 6 | |
| Sept. 20 | Patchy rain possible | 22° /12° | 0.3 mm | 5 | |
| Sept. 21 | Patchy rain possible | 21° /14° | 0.9 mm | 4 | |
| Sept. 22 | Patchy rain possible | 22° /12° | 0.5 mm | 6 | |
| Sept. 23 | Sunny | 24° /13° | 0 mm | 6 | |
| Sept. 24 | Sunny | 25° /12° | 0 mm | 5 | |
| Sept. 25 | Light rain | 25° /14° | 5.1 mm | 6 | |
| Sept. 26 | Sunny | 24° /14° | 0.7 mm | 6 | |
| Sept. 27 | Light rain | 24° /14° | 6.7 mm | 4 | |
| Sept. 28 | Light rain | 20° /12° | 8.9 mm | 4 | |
| Sept. 29 | Sunny | 21° /12° | 0.2 mm | 4 | |
| Sept. 30 | Sunny | 23° /15° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Washington County 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 Washington County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Washington County in September - FAQ
What are the expected maximum and minimum temperatures in Washington County during September?
During September, expect a variety of temperatures with highs around 24° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Washington County during September?
Moderate rainfall is anticipated in Washington County during September, with a total of 50.5 mm spread over approximately 5 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Washington County during September?
The average wind speed in Washington County during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Washington County
Explore the daily rainfall trends and prepare for Washington Countys September weather 💧
Typically, Washington County has 5 rainy days in September with a total of 50.5 mm of rainfall.
UV exposure in Washington County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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