December Weather in Medan, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Medan, Indonesia is a pleasant 26°C (80°F). Visitors can expect a range from a comfortable 22°C (72°F) to a warm 33°C (91°F). However, be prepared for some rain, as the area receives about 320 mm (12.6 in) of precipitation spread over 27 days. With an average humidity of 88%, it's a great time to enjoy the lush surroundings, but don’t forget your umbrella!

December Temperature in Medan

In December in Medan, the average temperature is 26°C (80°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 22°C (72°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy outdoor activities in Medan.

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

The chart illustrates December temperature patterns in Medan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Medan, December typically has an average temperature of 26°C (80°F), with highs reaching up to 33°C (91°F) and lows dropping to around 22°C (72°F).

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

December Precipitation in Medan

In Medan in December, the precipitation amount is 320 mm (12.6 in) over the course of 27 days.

December Precipitation Trends in Medan

The chart displays monthly precipitation patterns in Medan, 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 Medan, December typically receives around 320 mm (12.6 inches) of precipitation spread over approximately 27 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Medan

In Medan in December, humidity is 88%. With an average temperature of 26°C (80°F), this humidity feels like a thick blanket enveloping you, making outdoor activities challenging and sweat-soaked.

December Average Humidity in Medan

This chart illustrates the average monthly humidity levels in Medan, 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 Medan is approximately 88%, 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 Medan

In Medan in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Medan.

Maximum UV Index Levels in Medan for December

The chart shows the monthly maximum UV Index (UVI) for Medan 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 Medan typically reaches 12, which falls under the extreme exposure category.

Data source: Medan 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 Medan Compares to Other Months

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

This table compares monthly weather conditions in Medan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (80°F)	177 mm (7.0 inches)	83%	extreme
February Weather	27°C (81°F)	113 mm (4.4 inches)	74%	extreme
March Weather	27°C (81°F)	146 mm (5.8 inches)	74%	extreme
April Weather	27°C (82°F)	241 mm (9.5 inches)	77%	extreme
May Weather	27°C (82°F)	335 mm (13.2 inches)	82%	extreme
June Weather	27°C (81°F)	204 mm (8.0 inches)	85%	extreme
July Weather	27°C (81°F)	227 mm (9.0 inches)	84%	extreme
August Weather	27°C (81°F)	239 mm (9.4 inches)	87%	extreme
September Weather	27°C (80°F)	354 mm (14.0 inches)	89%	extreme
October Weather	27°C (80°F)	344 mm (13.5 inches)	89%	extreme
November Weather	26°C (80°F)	384 mm (15.1 inches)	88%	extreme
December Weather	26°C (80°F)	320 mm (12.6 inches)	88%	extreme