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December Weather in Rantau, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Rantau, Indonesia is a warm 26°C (79°F). Expect a minimum of 22°C (72°F) and a maximum of 35°C (95°F), making for some lovely sunny days. During this time, the area receives 263 mm (10.3 in) of precipitation over 30 days, with an average humidity of 80%. Be prepared for a mix of warm weather and occasional rain!

December Temperature in Rantau

In December in Rantau, the average temperature is 26°C (79°F). Maximum can reach 35°C (95°F) and minimum can be as low as 22°C (72°F). It's a great time to visit for those who enjoy warm and pleasant weather.

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

The chart illustrates December temperature patterns in Rantau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rantau, December typically has an average temperature of 26°C (79°F), with highs reaching up to 35°C (95°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979798079797979807979
Data source: Temperature data for Rantau 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 Rantau

In Rantau in December, the total precipitation amount is 263 mm (10.3 in) over a duration of 30 days.

December Precipitation Trends in Rantau

The chart displays monthly precipitation patterns in Rantau, 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 Rantau, December typically receives around 263 mm (10.3 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec236253340279255192131131167182317263
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rantau

In Rantau in December humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

December Average Humidity in Rantau

This chart illustrates the average monthly humidity levels in Rantau, 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 Rantau is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%83%84%82%80%81%82%82%77%78%77%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rantau

In Rantau 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 Rantau, you can check here.

Maximum UV Index Levels in Rantau for December

The chart shows the monthly maximum UV Index (UVI) for Rantau 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 Rantau typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151412121415151414
Data source: Rantau 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 Rantau Compares to Other Months

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

This table compares monthly weather conditions in Rantau, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)236 mm (9.3 inches)83%extreme
February Weather26°C (79°F)253 mm (10.0 inches)83%extreme
March Weather26°C (79°F)340 mm (13.4 inches)84%extreme
April Weather26°C (80°F)279 mm (11.0 inches)82%extreme
May Weather27°C (80°F)255 mm (10.0 inches)80%extreme
June Weather26°C (79°F)192 mm (7.5 inches)81%extreme
July Weather26°C (79°F)131 mm (5.1 inches)82%extreme
August Weather26°C (79°F)131 mm (5.2 inches)82%extreme
September Weather26°C (80°F)167 mm (6.6 inches)77%extreme
October Weather27°C (80°F)182 mm (7.1 inches)78%extreme
November Weather26°C (80°F)317 mm (12.5 inches)77%extreme
December Weather26°C (79°F)263 mm (10.3 inches)80%extreme

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