Yakima (WA)
September
Weather in Yakima, Washington for September 2027
Your guide to Yakima weather in September - trends and predictions
In general, the average temperature in Yakima at the beginning of September is 22.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.6 °F by the end of September.
Yakima experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 39.7 mm.
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Temperatures
Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
23°/10°
Temperatures
14 km/h
Avg max wind
44 %
Avg humidity
Yakima Weather September
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Temperatures trend during September in Yakima
See the weather trend as well as the moving average line
September weather in Yakima day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 31° /14° | 0 mm | 2 | |
| Sept. 2 |  Patchy rain possible | 23° /13° | 0.5 mm | 1 | |
| Sept. 3 | Overcast | 21° /11° | 0.5 mm | 2 | |
| Sept. 4 |  Moderate or heavy rain shower | 21° /9° | 3.4 mm | 5 | |
| Sept. 5 | Moderate or heavy rain shower | 21° /11° | 3.4 mm | 2 | |
| Sept. 6 |  Heavy rain at times | 18° /9° | 2.1 mm | 2 | |
| Sept. 7 | Patchy rain possible | 24° /9° | 0.5 mm | 5 | |
| Sept. 8 |  Sunny | 26° /9° | 0 mm | 6 | |
| Sept. 9 | Overcast | 29° /11° | 0 mm | 6 | |
| Sept. 10 | Overcast | 29° /14° | 0 mm | 2 | |
| Sept. 11 | Overcast | 25° /10° | 0 mm | 2 | |
| Sept. 12 | Overcast | 24° /11° | 7.9 mm | 1 | |
| Sept. 13 | Moderate or heavy rain shower | 12° /10° | 18.8 mm | 1 | |
| Sept. 14 | Overcast | 20° /8° | 0 mm | 5 | |
| Sept. 15 | Patchy rain possible | 18° /10° | 0.8 mm | 1 | |
| Sept. 16 | Sunny | 23° /9° | 0 mm | 5 | |
| Sept. 17 | Overcast | 26° /11° | 0 mm | 5 | |
| Sept. 18 | Sunny | 26° /11° | 0 mm | 5 | |
| Sept. 19 | Overcast | 27° /11° | 0 mm | 5 | |
| Sept. 20 | Sunny | 28° /12° | 0 mm | 4 | |
| Sept. 21 | Overcast | 29° /13° | 0 mm | 4 | |
| Sept. 22 | Overcast | 26° /13° | 0 mm | 3 | |
| Sept. 23 | Overcast | 22° /10° | 0 mm | 1 | |
| Sept. 24 | Overcast | 21° /10° | 0 mm | 1 | |
| Sept. 25 | Patchy rain possible | 16° /11° | 1.8 mm | 3 | |
| Sept. 26 | Overcast | 18° /6° | 0 mm | 2 | |
| Sept. 27 | Overcast | 19° /7° | 0 mm | 3 | |
| Sept. 28 | Overcast | 21° /6° | 0 mm | 4 | |
| Sept. 29 | Overcast | 22° /12° | 0 mm | 1 | |
| Sept. 30 | Overcast | 20° /9° | 0 mm | 2 | |
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Important Notice
Our weather forecast for Yakima 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 Yakima forecast closer to your planned date for the most up-to-date weather information.
Change Month
Yakima in September - FAQ
What are the expected maximum and minimum temperatures in Yakima during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Yakima during September?
In September, Yakima can expect light to moderate rainfall, totaling 39.7 mm across approximately 10 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Yakima during September?
The average wind speed in Yakima during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Yakima
Explore the daily rainfall trends and prepare for Yakimas September weather 💧
Typically, Yakima has 10 rainy days in September with a total of 39.7 mm of rainfall.
UV exposure in Yakima during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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