January Weather in Ulu, Indonesia

Last updated: August 23, 2025

In January, the average temperature in Ulu, Indonesia hovers around a warm 27°C (81°F). Expect a comfortable range, with minimum temperatures dipping to 25°C (77°F) and maximums reaching up to 29°C (84°F). However, be prepared for some precipitation, as the area receives about 296 mm (11.7 in) of rain over 21 days. With an average humidity level of 78%, it’s the perfect setting for those who love a tropical climate!

January Temperature in Ulu

In January in Ulu, the average temperature is 27°C (81°F). Maximums can reach 29°C (84°F), while minimums can drop to 25°C (77°F). This mild and pleasant weather makes Ulu an ideal destination for travelers seeking warmth and comfort.

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

The chart illustrates January temperature patterns in Ulu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ulu, January typically has an average temperature of 27°C (81°F), with highs reaching up to 29°C (84°F) and lows dropping to around 25°C (77°F).

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

January Precipitation in Ulu

In Ulu in January, the total precipitation amount reaches 296 mm (11.7 in) over the course of 21 days.

January Precipitation Trends in Ulu

The chart displays monthly precipitation patterns in Ulu, 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 Ulu, January typically receives around 296 mm (11.7 inches) of precipitation spread over approximately 21 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 Ulu

In Ulu in January humidity is 78%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy embrace that makes traveling feel both invigorating and exhausting. Moments spent outside can quickly become clammy and uncomfortable, urging travelers to seek shade and hydration as they explore.

January Average Humidity in Ulu

This chart illustrates the average monthly humidity levels in Ulu, 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 Ulu is approximately 78%, 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 Ulu

In Ulu in January, 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 Ulu, you can check here.

Maximum UV Index Levels in Ulu for January

The chart shows the monthly maximum UV Index (UVI) for Ulu 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 Ulu typically reaches 14, which falls under the extreme exposure category.

Data source: Ulu 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 Ulu Compares to Other Months

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

This table compares monthly weather conditions in Ulu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	296 mm (11.7 inches)	78%	extreme
February Weather	27°C (81°F)	180 mm (7.1 inches)	83%	extreme
March Weather	27°C (81°F)	267 mm (10.5 inches)	82%	extreme
April Weather	27°C (81°F)	165 mm (6.5 inches)	80%	extreme
May Weather	28°C (82°F)	233 mm (9.2 inches)	74%	extreme
June Weather	27°C (81°F)	314 mm (12.4 inches)	74%	extreme
July Weather	27°C (81°F)	272 mm (10.7 inches)	75%	extreme
August Weather	27°C (81°F)	180 mm (7.1 inches)	76%	extreme
September Weather	27°C (81°F)	185 mm (7.3 inches)	77%	extreme
October Weather	27°C (82°F)	173 mm (6.8 inches)	75%	extreme
November Weather	27°C (81°F)	264 mm (10.4 inches)	74%	extreme
December Weather	27°C (81°F)	286 mm (11.3 inches)	75%	extreme