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December Weather in Rainis, Indonesia

Last updated: August 23, 2025

In December, the average temperature in Rainis, Indonesia hovers around 28°C (82°F). Expect a minimum of 25°C (77°F) and a maximum of 32°C (90°F). However, be prepared for frequent rain with a precipitation amount of 237 mm (9.3 in) spread over 29 days, accompanied by an average humidity of 78%.

December Temperature in Rainis

In December in Rainis, the average temperature is 28°C (82°F), with maximums reaching 32°C (90°F) and minimums dropping to 25°C (77°F). It's an ideal time to visit for those who enjoy warm weather and outdoor activities.

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

The chart illustrates December temperature patterns in Rainis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rainis, December typically has an average temperature of 28°C (82°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181828281818281828282
Data source: Temperature data for Rainis 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 Rainis

In Rainis in December, the precipitation amount is 237 mm (9.3 in) spread over 29 days.

December Precipitation Trends in Rainis

The chart displays monthly precipitation patterns in Rainis, 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 Rainis, December typically receives around 237 mm (9.3 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec260136211179303339290186243197221237
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rainis

In Rainis in December humidity is 78%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting and overwhelming, potentially leading to a slower pace while exploring.

December Average Humidity in Rainis

This chart illustrates the average monthly humidity levels in Rainis, 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 Rainis is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%87%87%83%77%77%77%78%80%77%76%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rainis

In Rainis 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 Rainis.

Maximum UV Index Levels in Rainis for December

The chart shows the monthly maximum UV Index (UVI) for Rainis 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 Rainis typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141616161513131415141412
Data source: Rainis 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 Rainis Compares to Other Months

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

This table compares monthly weather conditions in Rainis, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)260 mm (10.3 inches)82%extreme
February Weather27°C (81°F)136 mm (5.4 inches)87%extreme
March Weather27°C (81°F)211 mm (8.3 inches)87%extreme
April Weather28°C (82°F)179 mm (7.1 inches)83%extreme
May Weather28°C (82°F)303 mm (11.9 inches)77%extreme
June Weather27°C (82°F)339 mm (13.3 inches)77%extreme
July Weather27°C (81°F)290 mm (11.4 inches)77%extreme
August Weather28°C (82°F)186 mm (7.3 inches)78%extreme
September Weather27°C (82°F)243 mm (9.6 inches)80%extreme
October Weather28°C (82°F)197 mm (7.8 inches)77%extreme
November Weather28°C (82°F)221 mm (8.7 inches)76%extreme
December Weather28°C (82°F)237 mm (9.3 inches)78%extreme

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