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December Weather in Sternes, Greece

Last updated: August 23, 2025

In December, the average temperature in Sternes, Greece hovers around 15°C (59°F). Expect a minimum of 8°C (46°F) and a maximum of 20°C (68°F). With precipitation totaling 149 mm (5.9 in) over approximately 15 days, it's a month to consider an umbrella. The average humidity sits at a comfortable 71%, making it a pleasant yet occasionally damp time of year.

December Temperature in Sternes

In December in Sternes, the average temperature is 15°C (59°F). Maximums can reach 20°C (68°F), and minimums can be as low as 8°C (46°F). This range makes it a pleasant time to explore Sternes, so be sure to pack layers for comfort throughout the day.

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

The chart illustrates December temperature patterns in Sternes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sternes, December typically has an average temperature of 15°C (59°F), with highs reaching up to 20°C (68°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec545556606773787875696458
Data source: Temperature data for Sternes 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 Sternes

In Sternes in December, the precipitation amount is 149 mm (5.9 in) over a period of 15 days.

December Precipitation Trends in Sternes

The chart displays monthly precipitation patterns in Sternes, 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 Sternes, December typically receives around 149 mm (5.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec1261267143208564163117149
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sternes

In Sternes in December humidity is 71%. With an average temperature of 15°C (59°F), this humidity feels like a damp embrace, making outdoor activities slightly uncomfortable and encouraging travelers to seek shade or indoor attractions to escape the muggy air.

December Average Humidity in Sternes

This chart illustrates the average monthly humidity levels in Sternes, 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 Sternes is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%72%74%78%84%83%81%78%74%73%71%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sternes

In Sternes in December, 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 Sternes, you can check the information here.

Maximum UV Index Levels in Sternes for December

The chart shows the monthly maximum UV Index (UVI) for Sternes 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 Sternes typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109753
Data source: Sternes 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 Sternes Compares to Other Months

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

This table compares monthly weather conditions in Sternes, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)126 mm (5.0 inches)71%moderate
February Weather13°C (55°F)126 mm (5.0 inches)72%moderate
March Weather13°C (56°F)71 mm (2.8 inches)74%high
April Weather16°C (60°F)43 mm (1.7 inches)78%very high
May Weather19°C (67°F)20 mm (0.8 inches)84%very high
June Weather23°C (73°F)8 mm (0.3 inches)83%extreme
July Weather25°C (78°F)5 mm (0.2 inches)81%very high
August Weather26°C (79°F)6 mm (0.2 inches)78%very high
September Weather24°C (75°F)41 mm (1.6 inches)74%very high
October Weather20°C (69°F)63 mm (2.5 inches)73%high
November Weather18°C (64°F)117 mm (4.6 inches)71%moderate
December Weather15°C (59°F)149 mm (5.9 inches)71%moderate

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