January Weather in Roa, Indonesia

Last updated: August 23, 2025

In January, the average temperature in Roa, Indonesia hovers around 26°C (80°F), with a minimum of 23°C (73°F) and a maximum reaching up to 33°C (91°F). Expect 295 mm (11.6 in) of rain spread over 25 days, contributing to a notable average humidity of 78%. This delightful mix of warmth and moisture makes for a vibrant, yet refreshing atmosphere.

January Temperature in Roa

In January in Roa, the average temperature is 26°C (80°F), with maximums reaching 33°C (91°F) and minimums dropping to as low as 23°C (73°F). This pleasant climate makes it an ideal destination for travelers looking to enjoy warm weather during their visit.

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

The chart illustrates January temperature patterns in Roa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roa, January typically has an average temperature of 26°C (80°F), with highs reaching up to 33°C (91°F) and lows dropping to around 23°C (73°F).

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

January Precipitation in Roa

In Roa in January, the total precipitation amount reaches 295 mm (11.6 in) over the course of 25 days.

January Precipitation Trends in Roa

The chart displays monthly precipitation patterns in Roa, 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 Roa, January typically receives around 295 mm (11.6 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 Roa

In Roa in January, humidity is 78%. With an average temperature of 26°C (80°F), this humidity feels like a warm blanket wrapping around you, making travel feel sticky and heavy, while the air clings to your skin and encourages frequent breaks in shaded spots to stay cool.

January Average Humidity in Roa

This chart illustrates the average monthly humidity levels in Roa, 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 Roa 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 Roa

In Roa 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 Roa.

Maximum UV Index Levels in Roa for January

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

Data source: Roa 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 Roa Compares to Other Months

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

This table compares monthly weather conditions in Roa, 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 (80°F)	295 mm (11.6 inches)	78%	extreme
February Weather	26°C (79°F)	293 mm (11.5 inches)	84%	extreme
March Weather	26°C (79°F)	319 mm (12.6 inches)	84%	extreme
April Weather	26°C (80°F)	178 mm (7.0 inches)	82%	extreme
May Weather	27°C (81°F)	84 mm (3.3 inches)	83%	extreme
June Weather	26°C (79°F)	33 mm (1.3 inches)	79%	very high
July Weather	25°C (78°F)	17 mm (0.7 inches)	74%	extreme
August Weather	26°C (78°F)	18 mm (0.7 inches)	71%	extreme
September Weather	26°C (80°F)	19 mm (0.7 inches)	70%	extreme
October Weather	27°C (81°F)	72 mm (2.8 inches)	69%	extreme
November Weather	27°C (81°F)	264 mm (10.4 inches)	70%	extreme
December Weather	27°C (81°F)	325 mm (12.8 inches)	72%	extreme