September weather forecast and climate
Rønne, Denmark

What is the temperature in September in Rønne?

In September, the average high-temperature is 16.2°C (61.2°F), and the average low-temperature is 10.8°C (51.4°F).

How much does it rain in Rønne in September?

In Rønne, in September, during 9 rainfall days, typically, 61mm (2.4") of precipitation is accumulated.

What is the rainiest month in Rønne?

The month with the most rainfall is September when the rain falls for 9 days and typically aggregates up to 61mm (2.4") of precipitation.

How cold is the water in September in Rønne?

In September, in Rønne, the average sea temperature is 16.4°C (61.5°F). Swimming in 16.4°C (61.5°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
Average temperature in September - Rønne, Denmark
  • Average high temperature in September: 16.2°C

The warmest month (with the highest average high temperature) is August (19.8°C).
The month with the lowest average high temperature is February (1.9°C).

  • Average low temperature in September: 10.8°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-1.8°C).

Average rainfall in September - Rønne, Denmark
  • Average rainfall in September: 61mm

The wettest month (with the highest rainfall) is September (61mm).
The driest month (with the lowest rainfall) is February (28mm).

Average rainfall days in September - Rønne, Denmark
  • Average rainfall days in September: 9 days

Months with the highest number of rainy days are November and December (12 days).
The month with the lowest number of rainy days is June (6 days).

Average sea temperature in September - Rønne, Denmark
  • Average sea temperature in September: 16.4°C

The best month for swimming (with the highest average sea temperature) is August (17.8°C).
The coldest month (with the lowest average sea temperature) is March (2.4°C).

Average daylight in September / Average sunshine in September - Rønne, Denmark
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 17.3h).
The month with shortest days is December (Average daylight: 7.3h).

  • Average sunshine in September: 4.6h

The month with most sunshine is June (Average sunshine: 8h).
The month with least sunshine is December (Average sunshine: 1.1h).

Average UV index in September - Rønne, Denmark
  • Average UV index in September: 3

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January and December (UV index 0).

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