The weather in September in Os

It's cool in September in Os with an average temperature of 13°C. Temperatures this month range from a low of 12°C to a high of 15°C. At night, you can expect temperatures between 6°C and 10°C.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Os, Norway. 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 22°C in 2019, Os reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 5°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -1°C to a highest value of 16°C.

Rainfall amount

In September, there is an average of 86 mm of precipitation, spread over 11 days. The wind speed is around 5 Bft, mostly coming from the South.

Daily weather in September for Os

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

September weather comparison

  Os New York
Average temperature 13°C 27°C
Max. temperature 15°C 31°C
Min. temperature 6°C -5°C
Total precipitation 86 mm 57 mm
Rainy days 11 days 9 days

Start of September

The month of September starts in Os with cool temps, averaging around 15°C during the day and nights around 10°C.

Mid September

By mid-September, daytime temps drop to around 14°C, with nights around 9°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 Os is around 13°C, while nighttime temps are about 8°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable trips to Os

UV index

The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

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

Curious about the weather in other parts of Norway? Check out the climate and weather for spots like Oslo, Lofoten, Vesterålen, or explore other destinations in Norway.

Temperature charts

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

Daily Temperature in September in Os

Temperature in September in Os over the years

Precipitation charts

These charts show the average amount of precipitation in September in Os, Norway. 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 Os

Total precipitation in September in Os over the years

Daily UV index in September in Os

This chart shows the average daily UV index in September in Os, 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 Os

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Average weather in Os by month

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