January Weather in Rantau, Indonesia

Last updated: August 23, 2025

In January, the average temperature in Rantau, Indonesia hovers around 26°C (79°F). Expect a pleasant range where the minimum can drop to 22°C (72°F), while the maximum peaks at 34°C (94°F). However, be prepared for 236 mm (9.3 in) of precipitation spread over 23 days, contributing to an average humidity of 83%.

January Temperature in Rantau

In January in Rantau, the average temperature is 26°C (79°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 22°C (72°F). This mild and warm climate makes Rantau an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates January 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, January typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Rantau

In Rantau in January, the precipitation amount is 236 mm (9.3 in) over the course of 23 days.

January Precipitation Trends in Rantau

The chart displays monthly precipitation patterns in Rantau, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Rantau, January typically receives around 236 mm (9.3 inches) of precipitation spread over approximately 23 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Rantau

In Rantau in January, humidity is 83%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket enveloping you, making travel an exercise in endurance as the air clings to your skin and saps your energy.

January Average Humidity in Rantau

This chart illustrates the average monthly humidity levels in Rantau, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Rantau is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Rantau

In Rantau in January, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Rantau.

Maximum UV Index Levels in Rantau for January

The chart shows the monthly maximum UV Index (UVI) for Rantau in January, 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 January, the maximum UV index in Rantau typically reaches 15, which falls under the extreme exposure category.

Data source: Rantau January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	236 mm (9.3 inches)	83%	extreme
February Weather	26°C (79°F)	253 mm (10.0 inches)	83%	extreme
March Weather	26°C (79°F)	340 mm (13.4 inches)	84%	extreme
April Weather	26°C (80°F)	279 mm (11.0 inches)	82%	extreme
May Weather	27°C (80°F)	255 mm (10.0 inches)	80%	extreme
June Weather	26°C (79°F)	192 mm (7.5 inches)	81%	extreme
July Weather	26°C (79°F)	131 mm (5.1 inches)	82%	extreme
August Weather	26°C (79°F)	131 mm (5.2 inches)	82%	extreme
September Weather	26°C (80°F)	167 mm (6.6 inches)	77%	extreme
October Weather	27°C (80°F)	182 mm (7.1 inches)	78%	extreme
November Weather	26°C (80°F)	317 mm (12.5 inches)	77%	extreme
December Weather	26°C (79°F)	263 mm (10.3 inches)	80%	extreme