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December Weather in Orkney, South Africa

Last updated: August 31, 2025

In Orkney, South Africa, the average temperature in December hovers around 23°C (74°F), with a comfortable minimum of 10°C (50°F) and a sweltering maximum of 38°C (101°F). Expect around 123 mm (4.8 in) of precipitation spread over 15 days, contributing to an average humidity of 67% that enhances the tropical feel of the locale.

December Temperature in Orkney

In December in Orkney, the average temperature is 23°C (74°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 10°C (50°F). This makes Orkney a great destination for travelers seeking warm weather, but it's advisable to pack for both the heat and cooler evenings.

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

The chart illustrates December temperature patterns in Orkney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orkney, December typically has an average temperature of 23°C (74°F), with highs reaching up to 38°C (101°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec747270645752515865707273
Data source: Temperature data for Orkney 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 Orkney

In Orkney in December, the precipitation amount is 123 mm (4.8 in), occurring over a span of 15 days.

December Precipitation Trends in Orkney

The chart displays monthly precipitation patterns in Orkney, 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 Orkney, December typically receives around 123 mm (4.8 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec941045359682564074123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Orkney

In Orkney in December humidity is 67%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, making outdoor exploration pleasant yet slightly sticky, perfect for leisurely strolls but requiring occasional breaks for hydration.

December Average Humidity in Orkney

This chart illustrates the average monthly humidity levels in Orkney, 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 Orkney is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%71%74%75%70%65%59%56%56%54%59%67%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Orkney

In Orkney in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Orkney.

Maximum UV Index Levels in Orkney for December

The chart shows the monthly maximum UV Index (UVI) for Orkney 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 Orkney typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151311756811131516
Data source: Orkney 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 Orkney Compares to Other Months

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

This table compares monthly weather conditions in Orkney, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)94 mm (3.7 inches)71%extreme
February Weather22°C (73°F)104 mm (4.1 inches)70%extreme
March Weather21°C (70°F)53 mm (2.1 inches)74%extreme
April Weather18°C (64°F)59 mm (2.3 inches)75%extreme
May Weather14°C (58°F)6 mm (0.2 inches)70%high
June Weather11°C (52°F)8 mm (0.3 inches)65%moderate
July Weather10°C (51°F)2 mm (0.1 inches)59%high
August Weather14°C (58°F)4 mm (0.2 inches)56%very high
September Weather19°C (66°F)6 mm (0.2 inches)56%extreme
October Weather21°C (70°F)40 mm (1.6 inches)54%extreme
November Weather22°C (73°F)74 mm (2.9 inches)59%extreme
December Weather23°C (74°F)123 mm (4.8 inches)67%extreme

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