December Weather in Utrecht, South Africa

Last updated: August 31, 2025

In December, the average temperature in Utrecht, South Africa is a pleasant 21°C (70°F). However, temperatures can fluctuate, with minimums dipping to 9°C (49°F) and maximums soaring to 36°C (97°F). Visitors should also prepare for some rain; expect about 130 mm (5.1 in) of precipitation over 17 days. With an average humidity of 84%, it's wise to embrace a tropical mindset while enjoying all that this location has to offer!

December Temperature in Utrecht

In December in Utrecht, the average temperature is 21°C (70°F). Maximums can reach 36°C (97°F), while minimums can drop as low as 9°C (49°F). Be prepared for warm days and cooler evenings when traveling to Utrecht during this time.

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

The chart illustrates December temperature patterns in Utrecht, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Utrecht, December typically has an average temperature of 21°C (70°F), with highs reaching up to 36°C (97°F) and lows dropping to around 9°C (49°F).

Data source: Temperature data for Utrecht generated using information from the Copernicus Climate Change Service.

December Precipitation in Utrecht

In Utrecht in December, the total precipitation amount is 130 mm (5.1 in) over a span of 17 days.

December Precipitation Trends in Utrecht

The chart displays monthly precipitation patterns in Utrecht, 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 Utrecht, December typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Utrecht

In Utrecht in December, humidity is 84%. With an average temperature of 21°C (70°F), this humidity feels like thick, warm air wrapping around you, making outdoor activities quite uncomfortable and necessitating frequent hydration breaks for a more enjoyable travel experience.

December Average Humidity in Utrecht

This chart illustrates the average monthly humidity levels in Utrecht, 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 Utrecht is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Utrecht

In Utrecht 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 Utrecht.

Maximum UV Index Levels in Utrecht for December

The chart shows the monthly maximum UV Index (UVI) for Utrecht 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 Utrecht typically reaches 16, which falls under the extreme exposure category.

Data source: Utrecht 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 Utrecht Compares to Other Months

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

This table compares monthly weather conditions in Utrecht, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	92 mm (3.6 inches)	82%	extreme
February Weather	21°C (70°F)	127 mm (5.0 inches)	81%	extreme
March Weather	20°C (69°F)	83 mm (3.3 inches)	80%	extreme
April Weather	17°C (63°F)	61 mm (2.4 inches)	82%	very high
May Weather	14°C (58°F)	28 mm (1.1 inches)	86%	high
June Weather	12°C (53°F)	8 mm (0.3 inches)	78%	moderate
July Weather	12°C (54°F)	2 mm (0.1 inches)	81%	high
August Weather	15°C (59°F)	15 mm (0.6 inches)	77%	very high
September Weather	18°C (64°F)	26 mm (1.0 inches)	85%	extreme
October Weather	18°C (65°F)	61 mm (2.4 inches)	85%	extreme
November Weather	20°C (68°F)	89 mm (3.5 inches)	85%	extreme
December Weather	21°C (70°F)	130 mm (5.1 inches)	84%	extreme