January Weather in Sentani, Indonesia

Last updated: August 23, 2025

The average temperature in Sentani, Indonesia during January hovers around 27°C (81°F), creating a warm and inviting atmosphere. Expect minimum temperatures of 24°C (76°F) and maximums reaching 31°C (87°F). However, be prepared for some rain, as the area sees an average precipitation of 200 mm (7.9 in) spread over 22 days. The humidity remains high at 84%, contributing to the tropical feel of the region.

January Temperature in Sentani

In January in Sentani, the average temperature is 27°C (81°F), with maximums reaching 31°C (87°F) and minimums dropping to 24°C (76°F). This pleasant weather makes it an ideal destination for travelers seeking warmth and sunshine.

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

The chart illustrates January temperature patterns in Sentani, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sentani, January typically has an average temperature of 27°C (81°F), with highs reaching up to 31°C (87°F) and lows dropping to around 24°C (76°F).

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

January Precipitation in Sentani

In Sentani in January, the precipitation amount is 200 mm (7.9 in) over the course of 22 days.

January Precipitation Trends in Sentani

The chart displays monthly precipitation patterns in Sentani, 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 Sentani, January typically receives around 200 mm (7.9 inches) of precipitation spread over approximately 22 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 Sentani

In Sentani in January humidity is 84%. With an average temperature of 27°C (81°F), this humidity feels like walking through a warm, moist blanket, making travel uncomfortable and sticky, as every step seems to weigh you down with the heavy air.

January Average Humidity in Sentani

This chart illustrates the average monthly humidity levels in Sentani, 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 Sentani is approximately 84%, 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 Sentani

In Sentani 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 Sentani.

Maximum UV Index Levels in Sentani for January

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

Data source: Sentani 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 Sentani Compares to Other Months

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

This table compares monthly weather conditions in Sentani, 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)	200 mm (7.9 inches)	84%	extreme
February Weather	27°C (80°F)	310 mm (12.2 inches)	84%	extreme
March Weather	27°C (80°F)	320 mm (12.6 inches)	83%	extreme
April Weather	27°C (80°F)	301 mm (11.8 inches)	85%	extreme
May Weather	27°C (81°F)	231 mm (9.1 inches)	84%	extreme
June Weather	27°C (80°F)	234 mm (9.2 inches)	85%	extreme
July Weather	26°C (80°F)	265 mm (10.4 inches)	85%	extreme
August Weather	27°C (80°F)	229 mm (9.0 inches)	86%	extreme
September Weather	27°C (81°F)	191 mm (7.5 inches)	86%	extreme
October Weather	27°C (81°F)	228 mm (9.0 inches)	85%	extreme
November Weather	27°C (81°F)	303 mm (11.9 inches)	85%	extreme
December Weather	27°C (81°F)	312 mm (12.3 inches)	84%	extreme