September Weather in Rjukan

Last updated: March 2, 2024

The weather in Rjukan, Norway, during September is characterized by an average temperature of 6°C (44°F). Highs can soar to 16°C (61°F), while lows may dip to -1°C (30°F). Typically, the humidity level in Rjukan throughout September hovers around 86%.

-1°C (30°F)

Minimum temperature

6°C (44°F)

Average temperature

16°C (61°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In September, Rjukan averages 134 mm (5.3 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 12 hours 47 minutes of daylight, with the sun shining for approximately 8 hours 15 minutes each day. Additionally, there is a 20% probability of sunny days during this period.

134 mm (5.3 inches)

Precipitation

16 rainy days

Rainy days

8 hours 15 minutes

Sunshine hours

20%

Chance of sun

UV Index

In September, the UV Index in Rjukan reaches a maximum of 4, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 1 2 3 4 4 4 4 3 2 1 1
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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