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December Weather in Ronneby, Sweden

Last updated: August 27, 2025

In December, the average temperature in Ronneby, Sweden hovers around 3°C (38°F), with a minimum of -8°C (17°F) and a maximum reaching 10°C (50°F). Expect about 74 mm (2.9 in) of precipitation spread over 16 days, contributing to a high average humidity of 88%. Prepare for a chilly and damp month ahead!

December Temperature in Ronneby

In December in Ronneby, the average temperature is 3°C (38°F). The maximum can reach 10°C (50°F), and the minimum can be as low as -8°C (17°F). Travelers should prepare for chilly weather and dress warmly to fully enjoy their visit.

December Weather in Ronneby: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ronneby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ronneby, December typically has an average temperature of 3°C (38°F), with highs reaching up to 10°C (50°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec353537435162646357504337
Data source: Temperature data for Ronneby 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.

December Precipitation in Ronneby

In Ronneby in December, the total precipitation amount is 74 mm (2.9 in) spread over 16 days.

December Precipitation Trends in Ronneby

The chart displays monthly precipitation patterns in Ronneby, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ronneby, December typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec516156304439637161755974
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ronneby

In Ronneby in December, humidity is 88%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.

December Average Humidity in Ronneby

This chart illustrates the average monthly humidity levels in Ronneby, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ronneby is approximately 88%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Ronneby

In Ronneby in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Ronneby.

Maximum UV Index Levels in Ronneby for December

The chart shows the monthly maximum UV Index (UVI) for Ronneby in December, 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 December, the maximum UV index in Ronneby typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765311
Data source: Ronneby December 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 December Weather in Ronneby Compares to Other Months

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

This table compares monthly weather conditions in Ronneby, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)51 mm (2.0 inches)90%low
February Weather1°C (35°F)61 mm (2.4 inches)89%low
March Weather3°C (38°F)56 mm (2.2 inches)88%moderate
April Weather6°C (44°F)30 mm (1.2 inches)82%moderate
May Weather11°C (52°F)44 mm (1.7 inches)72%high
June Weather16°C (62°F)39 mm (1.5 inches)68%high
July Weather18°C (64°F)63 mm (2.5 inches)68%high
August Weather17°C (63°F)71 mm (2.8 inches)73%high
September Weather14°C (58°F)61 mm (2.4 inches)81%moderate
October Weather10°C (50°F)75 mm (3.0 inches)87%moderate
November Weather6°C (44°F)59 mm (2.3 inches)89%low
December Weather3°C (38°F)74 mm (2.9 inches)88%low

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