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December Weather in Harian, Indonesia

Last updated: August 23, 2025

In Harian, Indonesia, the average temperature in December typically reaches 21°C (69°F). You can expect a minimum of 17°C (62°F) and a maximum of 27°C (80°F), making it a pleasantly warm time of year. However, be prepared for some rain, with an average precipitation of 261 mm (10.3 in) spread over 27 days. With an average humidity level of 88%, it’s advisable to stay hydrated during your visit!

December Temperature in Harian

In December in Harian, the average temperature is a pleasant 21°C (69°F). Maximums can reach up to 27°C (80°F), while the minimums can dip to as low as 17°C (62°F). This mild weather makes it an ideal time for travel and outdoor activities.

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

The chart illustrates December temperature patterns in Harian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harian, December typically has an average temperature of 21°C (69°F), with highs reaching up to 27°C (80°F) and lows dropping to around 17°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec697070707171707069696969
Data source: Temperature data for Harian 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 Harian

In Harian in December, the total precipitation amount is 261 mm (10.3 in), occurring over the course of 27 days.

December Precipitation Trends in Harian

The chart displays monthly precipitation patterns in Harian, 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 Harian, December typically receives around 261 mm (10.3 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec156132171210197138115138228195328261
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Harian

In Harian in December, humidity is 88%. With an average temperature of 21°C (69°F), this humidity feels like a warm blanket wrapping around you, making travel uncomfortable as sweat clings to your skin and the air feels thick and heavy, turning each step into a challenge.

December Average Humidity in Harian

This chart illustrates the average monthly humidity levels in Harian, 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 Harian is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%74%77%83%85%84%87%89%89%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Harian

In Harian in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Harian.

Maximum UV Index Levels in Harian for December

The chart shows the monthly maximum UV Index (UVI) for Harian 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 Harian typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617171613131516151413
Data source: Harian 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 Harian Compares to Other Months

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

This table compares monthly weather conditions in Harian, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (69°F)156 mm (6.1 inches)83%extreme
February Weather21°C (70°F)132 mm (5.2 inches)74%extreme
March Weather21°C (71°F)171 mm (6.7 inches)74%extreme
April Weather21°C (71°F)209 mm (8.2 inches)77%extreme
May Weather22°C (71°F)197 mm (7.8 inches)82%extreme
June Weather21°C (71°F)138 mm (5.4 inches)85%extreme
July Weather21°C (70°F)115 mm (4.5 inches)84%extreme
August Weather21°C (70°F)138 mm (5.4 inches)87%extreme
September Weather21°C (69°F)228 mm (9.0 inches)89%extreme
October Weather21°C (69°F)195 mm (7.7 inches)89%extreme
November Weather21°C (69°F)327 mm (12.9 inches)88%extreme
December Weather21°C (69°F)261 mm (10.3 inches)88%extreme

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