Roros is typically chill in September.

Maximum temperatures go down compared to the previous month from +59°F to +52°F. The minimum temperature also goes down from +45°F to +37°F.

Pack a jumper and a jacket as there will be cooler temperatures.

Take a look at how September is compared to other months in Roros:

September weather is still as ok as in August. It’s getting colder in September. From +59°F in the day, the average maximum temperature lowers to +52°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 99 mm to 70 mm. Humidity rises from 79% to 81%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.

October brings much the same weather, it remains ok.

The climate in Roros in September has not changed that much over the last 43 years.

The average temperature was the lowest in 2010 (+38°F) and the highest in 2020 (+45°F). The driest year was 1982 with only 381 mm of rainfall, and the wettest year was 2015 with 615 mm.

For this page, we’ve looked at the typical weather in Roros, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.