Astoria (OR)
September
Weather in Astoria, Oregon for September 2027
Your guide to Astoria weather in September - trends and predictions
In general, the average temperature in Astoria at the beginning of September is 17.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 14.8 °C by the end of September.
Astoria experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 187.9 mm.
Is September a good time to visit Astoria? check out the best time to travel to Astoria page.
✨ Is September a good time to visit Astoria? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
23
Dry days
7
Rainy days
0
Snow days
16°/12°
Temperatures
15 km/h
Avg max wind
87 %
Avg humidity
Astoria Weather September
Move between months or click on a day
Temperatures trend during September in Astoria
See the weather trend as well as the moving average line
September weather in Astoria day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 16° /13° | 1.7 mm | 3 | |
| Sept. 2 |  Moderate rain | 16° /13° | 23.4 mm | 3 | |
| Sept. 3 |  Heavy rain | 16° /11° | 87.1 mm | 3 | |
| Sept. 4 |  Sunny | 19° /12° | 0 mm | 5 | |
| Sept. 5 | Sunny | 19° /13° | 0.2 mm | 5 | |
| Sept. 6 | Sunny | 19° /13° | 0 mm | 5 | |
| Sept. 7 |  Light rain | 17° /13° | 3.3 mm | 4 | |
| Sept. 8 | Patchy rain possible | 19° /12° | 0 mm | 5 | |
| Sept. 9 | Patchy rain possible | 18° /12° | 0.1 mm | 4 | |
| Sept. 10 |  Overcast | 15° /12° | 0.3 mm | 3 | |
| Sept. 11 | Light rain | 16° /12° | 5.9 mm | 3 | |
| Sept. 12 | Light rain | 15° /12° | 6.1 mm | 3 | |
| Sept. 13 | Patchy rain possible | 15° /12° | 0.4 mm | 3 | |
| Sept. 14 | Patchy rain possible | 16° /12° | 1.7 mm | 3 | |
| Sept. 15 |  Cloudy | 17° /11° | 0.7 mm | 3 | |
| Sept. 16 | Sunny | 21° /12° | 0 mm | 5 | |
| Sept. 17 | Moderate rain | 17° /12° | 10.9 mm | 4 | |
| Sept. 18 |  Fog | 14° /12° | 0.1 mm | 3 | |
| Sept. 19 | Fog | 15° /11° | 0 mm | 3 | |
| Sept. 20 | Overcast | 14° /11° | 0 mm | 3 | |
| Sept. 21 | Light rain | 15° /11° | 5.1 mm | 3 | |
| Sept. 22 | Fog | 16° /11° | 0 mm | 4 | |
| Sept. 23 | Fog | 17° /11° | 0.5 mm | 3 | |
| Sept. 24 | Light rain | 16° /11° | 6.4 mm | 3 | |
| Sept. 25 |  Heavy rain at times | 14° /11° | 8.1 mm | 2 | |
| Sept. 26 | Light rain | 15° /11° | 2.8 mm | 3 | |
| Sept. 27 | Patchy rain possible | 15° /10° | 2.3 mm | 3 | |
| Sept. 28 | Overcast | 13° /10° | 0 mm | 2 | |
| Sept. 29 | Light rain | 14° /12° | 7.6 mm | 2 | |
| Sept. 30 | Moderate rain | 16° /11° | 13.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Astoria 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 Astoria forecast closer to your planned date for the most up-to-date weather information.
Change Month
Astoria in September - FAQ
What are the expected maximum and minimum temperatures in Astoria during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Astoria during September?
Significant rainfall exceeding 187.9 mm is expected in Astoria during September, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Astoria during September?
The average wind speed in Astoria during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Astoria
Explore the daily rainfall trends and prepare for Astorias September weather 💧
Typically, Astoria has 7 rainy days in September with a total of 187.9 mm of rainfall.
UV exposure in Astoria during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Astoria weather pages
You are here
Where is Astoria?Get accurate weather forecasts for Astoria, located at latitude 46.188 and longitude -123.831. Stay updated with localized weather information tailored for Astoria.
Found a mistake?
We appreciate your attention to details. Tell us here.