Temperatures in September
It's warm in September in Oregon with an average temperature of 24°C. Temperatures this month range from a low of 19°C to a high of 29°C. At night, you can expect temperatures between 5°C and 10°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Oregon in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Oregon with hot temperatures, averaging around 28°C during the day and nights close to 9°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature drops to around 24°C, with nights close to 7°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of September
By the end of September, the average daytime temperature in Oregon will be around 22°C, with nights close to 6°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
Precipitation in September
In September, there is an average of 18 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the Northwest.
The precipitation chance averages 10% per day this month. There are only a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Oregon. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Oregon in September |
UK | ||
|---|---|---|---|
 Average Temperature |
24°C | 20°C | |
 High Temp |
29°C | 22°C | |
| Low Temp |
19°C | 17°C | |
 Total Precipitation |
18 mm | 44 mm | |
| Rainy Days |
3 days | 8 days | |
August
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Oregon?
Want nice weather? Then September is a great time to be in Oregon. You’ll have pleasant temperatures and little chance of rain this month.
Temperature records for Oregon in September
With 40°C, Oregon hit the highest temperature in the last 10 years in September 2022. The lowest daytime temperature in this month was 6°C in 2019. The extreme night temperatures ranged from a low of -2°C to a high of 16°C.
Check out the climate of Oregon for all months and discover the best travel time
The climate of Oregon is based on weather data from . Other spots, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Oregon for a full picture of the climate.
Daily Temperature in September in Oregon
This chart shows the average daily temperatures, both day and night, for each day in September in Oregon, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Oregon
The chart below shows the average daily precipitation in September for Oregon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 3 days of rain in Oregon.
Daily UV Index in September in Oregon
This chart shows the average daily UV index in September in Oregon, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Oregon Over the Years
This chart shows the average temperature in September in Oregon, measured in degrees Celsius, over the past years.
Total Precipitation in September in Oregon Over the Years
This chart shows the average precipitation in September in Oregon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Oregon
Click on a specific day in September for detailed info on the typical weather on that day in Oregon. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Oregon
Have you been to Oregon in September?
Share your weather experience in September in Oregon.
Average Weather in Oregon by Month
Click on a month below to see detailed weather info for Oregon. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
