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December Weather in Gialtra, Greece

Last updated: August 23, 2025

In December, the average temperature in Gialtra, Greece is a cool 9°C (48°F). Expect minimums dipping as low as -3°C (27°F) and highs reaching up to 20°C (68°F). During this month, 89 mm (3.5 in) of precipitation is likely to fall over 11 days, contributing to an average humidity of 81%.

December Temperature in Gialtra

In December in Gialtra, the average temperature is 9°C (48°F). The maximum can reach 20°C (68°F), and the minimum can be as low as -3°C (27°F). This makes it a great time to enjoy outdoor activities while being prepared for a range of temperatures.

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

The chart illustrates December temperature patterns in Gialtra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gialtra, December typically has an average temperature of 9°C (48°F), with highs reaching up to 20°C (68°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec434750566674797972625548
Data source: Temperature data for Gialtra 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 Gialtra

In Gialtra in December, the precipitation amount is 89 mm (3.5 in) over a span of 11 days.

December Precipitation Trends in Gialtra

The chart displays monthly precipitation patterns in Gialtra, 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 Gialtra, December typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec979993796068543058868789
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gialtra

In Gialtra in December, humidity is 81%. With an average temperature of 9°C (48°F), this humidity feels like a chilly, damp embrace that can make outdoor activities less enjoyable and may require extra layers to stay comfortable while traveling.

December Average Humidity in Gialtra

This chart illustrates the average monthly humidity levels in Gialtra, 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 Gialtra is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%78%76%70%71%61%57%51%58%73%79%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gialtra

In Gialtra 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 Gialtra, you can check the information here.

Maximum UV Index Levels in Gialtra for December

The chart shows the monthly maximum UV Index (UVI) for Gialtra 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 Gialtra typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101110108643
Data source: Gialtra 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 Gialtra Compares to Other Months

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

This table compares monthly weather conditions in Gialtra, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)97 mm (3.8 inches)82%moderate
February Weather8°C (47°F)99 mm (3.9 inches)78%moderate
March Weather10°C (50°F)93 mm (3.7 inches)76%high
April Weather14°C (57°F)79 mm (3.1 inches)70%very high
May Weather19°C (66°F)60 mm (2.4 inches)71%very high
June Weather23°C (74°F)68 mm (2.7 inches)61%extreme
July Weather26°C (79°F)54 mm (2.1 inches)57%very high
August Weather26°C (79°F)30 mm (1.2 inches)51%very high
September Weather22°C (73°F)58 mm (2.3 inches)58%very high
October Weather17°C (63°F)86 mm (3.4 inches)73%high
November Weather13°C (55°F)87 mm (3.4 inches)79%moderate
December Weather9°C (48°F)89 mm (3.5 inches)81%moderate

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