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September Weather in Rockneby, Sweden

Last updated: August 27, 2025

In September, the average temperature in Rockneby, Sweden hovers around 14°C (57°F), with a minimum drop to 2°C (36°F) and a maximum rise to 24°C (76°F). Expect a moderate precipitation of 55 mm (2.2 in) spread across 9 days, while the air remains comfortably humid at an average of 81%.

September Temperature in Rockneby

In September in Rockneby, the average temperature is 14°C (57°F). The maximum can reach 24°C (76°F), while the minimum can be as low as 2°C (36°F). This makes it a great time for travelers to enjoy mild weather while exploring the sights.

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

The chart illustrates September temperature patterns in Rockneby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockneby, September typically has an average temperature of 14°C (57°F), with highs reaching up to 24°C (76°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec353437435263656457504337
Data source: Temperature data for Rockneby generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rockneby

In Rockneby in September, the precipitation amount is 55 mm (2.2 in) over a span of 9 days.

September Precipitation Trends in Rockneby

The chart displays monthly precipitation patterns in Rockneby, 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 Rockneby, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec404849264441485955675160
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rockneby

In Rockneby in September, humidity is 81%. With an average temperature of 14°C (57°F), this humidity feels like a warm, dense blanket that clings to your skin, making outdoor exploration a bit heavier and more tiring.

September Average Humidity in Rockneby

This chart illustrates the average monthly humidity levels in Rockneby, 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 Rockneby is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%82%72%68%68%73%81%87%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rockneby

In Rockneby in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Rockneby.

Maximum UV Index Levels in Rockneby for September

The chart shows the monthly maximum UV Index (UVI) for Rockneby 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 Rockneby typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765211
Data source: Rockneby 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 Rockneby Compares to Other Months

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

This table compares monthly weather conditions in Rockneby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)40 mm (1.6 inches)90%low
February Weather1°C (35°F)48 mm (1.9 inches)89%low
March Weather3°C (38°F)49 mm (1.9 inches)88%moderate
April Weather6°C (43°F)25 mm (1.0 inches)82%moderate
May Weather11°C (52°F)44 mm (1.7 inches)72%high
June Weather17°C (63°F)41 mm (1.6 inches)68%high
July Weather18°C (65°F)48 mm (1.9 inches)68%high
August Weather18°C (64°F)59 mm (2.3 inches)73%high
September Weather14°C (57°F)55 mm (2.2 inches)81%moderate
October Weather10°C (50°F)67 mm (2.6 inches)87%low
November Weather6°C (43°F)51 mm (2.0 inches)89%low
December Weather3°C (37°F)60 mm (2.4 inches)88%low

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