December Weather in Astambul, Indonesia

Last updated: August 23, 2025

In Astambul, Indonesia, the average temperature in December is a warm 27°C (81°F), with a minimum of 23°C (74°F) and a maximum reaching up to 37°C (98°F). Be prepared for a fair share of rain, as the region experiences 266 mm (10.5 in) of precipitation over 29 days. Additionally, you can expect high humidity levels averaging around 85%, making it feel quite tropical!

December Temperature in Astambul

In December in Astambul, the average temperature is 27°C (81°F). Maximums can reach 37°C (98°F) and minimums can be as low as 23°C (74°F). This makes Astambul a warm and inviting destination for travelers seeking sunny weather.

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

The chart illustrates December temperature patterns in Astambul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Astambul, December typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (98°F) and lows dropping to around 23°C (74°F).

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

December Precipitation in Astambul

In Astambul in December, the precipitation amount is 266 mm (10.5 in) over the course of 29 days.

December Precipitation Trends in Astambul

The chart displays monthly precipitation patterns in Astambul, 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 Astambul, December typically receives around 266 mm (10.5 inches) of precipitation spread over approximately 29 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 Astambul

In Astambul in December humidity is 85%. With an average temperature of 27°C (81°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier as sweat clings to your skin and the air feels almost tangible, which can be quite challenging for traveling.

December Average Humidity in Astambul

This chart illustrates the average monthly humidity levels in Astambul, 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 Astambul is approximately 85%, 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 Astambul

In Astambul in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Astambul, you can check here.

Maximum UV Index Levels in Astambul for December

The chart shows the monthly maximum UV Index (UVI) for Astambul 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 Astambul typically reaches 14, which falls under the extreme exposure category.

Data source: Astambul 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 Astambul Compares to Other Months

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

This table compares monthly weather conditions in Astambul, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	246 mm (9.7 inches)	87%	extreme
February Weather	27°C (81°F)	214 mm (8.4 inches)	87%	extreme
March Weather	27°C (81°F)	272 mm (10.7 inches)	88%	extreme
April Weather	27°C (82°F)	215 mm (8.5 inches)	87%	extreme
May Weather	28°C (82°F)	137 mm (5.4 inches)	85%	extreme
June Weather	27°C (81°F)	103 mm (4.0 inches)	87%	extreme
July Weather	27°C (80°F)	69 mm (2.7 inches)	87%	extreme
August Weather	27°C (81°F)	57 mm (2.2 inches)	86%	extreme
September Weather	27°C (82°F)	71 mm (2.8 inches)	79%	extreme
October Weather	28°C (83°F)	96 mm (3.8 inches)	78%	extreme
November Weather	28°C (82°F)	217 mm (8.5 inches)	81%	extreme
December Weather	27°C (81°F)	266 mm (10.5 inches)	85%	extreme