January Weather in Jetak, Indonesia

Last updated: August 23, 2025

In January, the average temperature in Jetak, Indonesia hovers around 27°C (81°F). Expect minimums of 24°C (75°F) and maximums reaching 33°C (92°F). This month also brings significant rainfall, with 290 mm (11.4 in) of precipitation over approximately 25 days. To top it off, the average humidity sits at a high 82%, making for a warm and humid climate.

January Temperature in Jetak

In January in Jetak, the average temperature is 27°C (81°F), with maximums reaching 33°C (92°F) and minimums dropping to as low as 24°C (75°F). This climate makes Jetak an ideal destination for travelers seeking warm and pleasant weather.

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

The chart illustrates January temperature patterns in Jetak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jetak, January typically has an average temperature of 27°C (81°F), with highs reaching up to 33°C (92°F) and lows dropping to around 24°C (75°F).

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

January Precipitation in Jetak

In Jetak in January, the total precipitation amount is 290 mm (11.4 in), recorded over the course of 25 days.

January Precipitation Trends in Jetak

The chart displays monthly precipitation patterns in Jetak, 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 Jetak, January typically receives around 290 mm (11.4 inches) of precipitation spread over approximately 25 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 Jetak

In Jetak in January humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

January Average Humidity in Jetak

This chart illustrates the average monthly humidity levels in Jetak, 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 Jetak is approximately 82%, 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 Jetak

In Jetak 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 Jetak, you can check here.

Maximum UV Index Levels in Jetak for January

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

Data source: Jetak 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 Jetak Compares to Other Months

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

This table compares monthly weather conditions in Jetak, 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)	290 mm (11.4 inches)	82%	extreme
February Weather	27°C (81°F)	343 mm (13.5 inches)	86%	extreme
March Weather	27°C (81°F)	323 mm (12.7 inches)	84%	extreme
April Weather	28°C (82°F)	219 mm (8.6 inches)	80%	extreme
May Weather	28°C (83°F)	85 mm (3.3 inches)	81%	extreme
June Weather	27°C (82°F)	67 mm (2.6 inches)	81%	very high
July Weather	27°C (81°F)	16 mm (0.6 inches)	78%	extreme
August Weather	27°C (81°F)	12 mm (0.5 inches)	74%	extreme
September Weather	28°C (82°F)	23 mm (0.9 inches)	70%	extreme
October Weather	28°C (83°F)	79 mm (3.1 inches)	72%	extreme
November Weather	28°C (83°F)	241 mm (9.5 inches)	73%	extreme
December Weather	28°C (82°F)	319 mm (12.6 inches)	75%	extreme