nomadseason

September Weather in Rost, Norway

Last updated: August 27, 2025

In September, the average temperature in Rost, Norway hovers around 11°C (52°F), with a minimum of 5°C (42°F) and a maximum of 16°C (60°F). Expect 93 mm (3.7 in) of precipitation spread over 16 days, contributing to an average humidity of 86%. Prepare for a cool, damp month!

September Temperature in Rost

In September in Rost, the average temperature is 11°C (52°F). Maximum temperatures can reach 16°C (60°F), while the minimum can drop as low as 5°C (42°F). This mild climate makes Rost a pleasant destination for travelers seeking comfortable outdoor exploration.

September Weather in Rost: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rost, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rost, September typically has an average temperature of 11°C (52°F), with highs reaching up to 16°C (60°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec373737394349535552474340
Data source: Temperature data for Rost generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rost

In Rost in September, the precipitation amount is 93 mm (3.7 in) spread over the course of 16 days.

September Precipitation Trends in Rost

The chart displays monthly precipitation patterns in Rost, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Rost, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec1028592583845517293126138111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Rost

In Rost in September humidity is 86%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek sheltered spots or indoor attractions to escape the uncomfortable dampness.

September Average Humidity in Rost

This chart illustrates the average monthly humidity levels in Rost, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Rost is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%82%77%79%82%84%86%87%86%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rost

In Rost in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Rost, you can check the information here.

Maximum UV Index Levels in Rost for September

The chart shows the monthly maximum UV Index (UVI) for Rost in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Rost typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345543111
Data source: Rost September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Rost Compares to Other Months

Weather in Rost varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rost, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rost, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)102 mm (4.0 inches)86%low
February Weather3°C (37°F)85 mm (3.4 inches)84%low
March Weather3°C (37°F)92 mm (3.6 inches)83%low
April Weather4°C (39°F)58 mm (2.3 inches)82%moderate
May Weather6°C (43°F)38 mm (1.5 inches)77%moderate
June Weather9°C (49°F)45 mm (1.8 inches)79%moderate
July Weather12°C (53°F)51 mm (2.0 inches)82%moderate
August Weather13°C (55°F)72 mm (2.8 inches)84%moderate
September Weather11°C (52°F)93 mm (3.7 inches)86%moderate
October Weather8°C (47°F)126 mm (5.0 inches)87%low
November Weather6°C (43°F)138 mm (5.4 inches)86%low
December Weather4°C (40°F)110 mm (4.3 inches)84%low

Compare Rost's Climate with Cities Worldwide