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December Weather in Sinjai, Indonesia

Last updated: August 23, 2025

In Sinjai, Indonesia, the average temperature in December hovers around 27°C (82°F), making it a warm and inviting destination. Expect temperatures to range from a minimum of 24°C (76°F) to a maximum of 32°C (90°F). However, be prepared for some rain, as the area receives an average of 189 mm (7.4 in) of precipitation over 25 days. With an average humidity of 78%, staying hydrated will keep you comfortable during your adventures!

December Temperature in Sinjai

In December in Sinjai, the average temperature is 27°C (82°F), with maximums reaching up to 32°C (90°F) and minimums dropping to as low as 24°C (76°F). This pleasant weather makes it an ideal time for outdoor activities and exploration in Sinjai.

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

The chart illustrates December temperature patterns in Sinjai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sinjai, December typically has an average temperature of 27°C (82°F), with highs reaching up to 32°C (90°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec818080807978777879818181
Data source: Temperature data for Sinjai 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 Sinjai

In Sinjai in December, the precipitation amount is 189 mm (7.4 in) over the course of 25 days.

December Precipitation Trends in Sinjai

The chart displays monthly precipitation patterns in Sinjai, 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 Sinjai, December typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec158201216198273347222998967160189
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sinjai

In Sinjai in December humidity is 78%. With an average temperature of 27°C (82°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a sweaty affair and requiring frequent breaks for hydration.

December Average Humidity in Sinjai

This chart illustrates the average monthly humidity levels in Sinjai, 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 Sinjai is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%84%84%83%82%84%84%83%78%80%78%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sinjai

In Sinjai 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 Sinjai, you can check here.

Maximum UV Index Levels in Sinjai for December

The chart shows the monthly maximum UV Index (UVI) for Sinjai 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 Sinjai typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616151311121415151414
Data source: Sinjai 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 Sinjai Compares to Other Months

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

This table compares monthly weather conditions in Sinjai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)158 mm (6.2 inches)80%extreme
February Weather27°C (81°F)201 mm (7.9 inches)84%extreme
March Weather27°C (81°F)216 mm (8.5 inches)84%extreme
April Weather27°C (80°F)198 mm (7.8 inches)83%extreme
May Weather26°C (80°F)273 mm (10.8 inches)82%extreme
June Weather26°C (78°F)347 mm (13.6 inches)84%extreme
July Weather25°C (78°F)222 mm (8.7 inches)84%extreme
August Weather26°C (78°F)99 mm (3.9 inches)82%extreme
September Weather26°C (79°F)89 mm (3.5 inches)78%extreme
October Weather27°C (81°F)67 mm (2.6 inches)80%extreme
November Weather27°C (82°F)160 mm (6.3 inches)78%extreme
December Weather27°C (82°F)189 mm (7.4 inches)78%extreme

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