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The weather in September in Alsea

It's warm in September in Alsea with an average temperature of 23°C. Temperatures this month range from a low of 19°C to a high of 27°C. At night, you can expect temperatures between 9°C and 13°C.

Looking for great weather? September is a good time to be in Alsea. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Alsea, Oregon. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 36°C in 2020, Alsea reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 13°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 20°C.

Rainfall amount

In September, there is an average of 52 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in September for Alsea

Click on any day in September to get detailed info about the usual weather on that day in Alsea. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Alsea New York
Average temperature 23°C 27°C
Max. temperature 27°C 31°C
Min. temperature 9°C -5°C
Total precipitation 52 mm 57 mm
Rainy days 9 days 9 days

Start of September

The month of September starts in Alsea with warm temps, averaging around 26°C during the day and nights around 12°C.

Mid September

By mid-September, daytime temps drop to around 22°C, with nights around 11°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of September

By the end of September, the average daytime temperature in Alsea is around 22°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 6 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.

Check out the climate of Alsea for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Alsea, Oregon. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Alsea

Temperature in September in Alsea over the years

Precipitation charts

These charts show the average amount of precipitation in September in Alsea, Oregon. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Alsea

Total precipitation in September in Alsea over the years

Daily UV index in September in Alsea

This chart shows the average daily UV index in September in Alsea, 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.

Weather experiences in September in Alsea

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Average weather in Alsea by month

Click on a month below to see detailed weather info for Alsea. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.