United StatesAverage weather for Oregon 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.
Start of September
The month of September starts in Oregon with hot temps, averaging around 28°C during the day and nights around 9°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
Mid September
By mid-September, daytime temps drop to around 24°C, with nights around 7°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Oregon is around 22°C, while nighttime temps are about 6°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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.
Oregon in September |
New York | ||
|---|---|---|---|
 Average temperature |
24°C | 27°C | |
 Max. temperature |
29°C | 31°C | |
| Min. temperature |
19°C | -5°C | |
 Total precipitation |
18 mm | 57 mm | |
| Rainy days |
3 days | 9 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?
Looking for great weather? September is a good time to be in Oregon. The temperatures are nice, and there’s little chance of rain this month.
Temperature records
With 40°C in 2022, Oregon reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 6°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 16°C.
Check out the climate of Oregon for all months and discover the best travel time
The climate in Oregon is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Oregon to get the full picture of the climate.
Daily Temperature in September in Oregon
This chart shows the average daily high and low temperatures in September for Oregon, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Oregon
The chart below shows the average daily precipitation in September for Oregon, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 3 days of precipitation 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 few years.
Total precipitation in September in Oregon over the years
This chart shows the average precipitation in September in Oregon, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Oregon
Click on any day in September to get detailed info about the usual 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?
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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.
