January Weather in Penang, Indonesia

Last updated: August 23, 2025

In January, the average temperature in Penang, Indonesia is a warm 26°C (79°F). Expect minimum temperatures around 22°C (72°F) and maximums reaching 32°C (90°F). This month sees an average precipitation of 323 mm (12.7 in) spread over 23 days, with an average humidity of 78%. Make sure to pack accordingly for both the warmth and the occasional rain!

January Temperature in Penang

In January in Penang, the average temperature is 26°C (79°F). Maximums can reach 32°C (90°F), and minimums can be as low as 22°C (72°F). This mild weather makes it an ideal time for traveling and exploring the local attractions.

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

The chart illustrates January temperature patterns in Penang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Penang, January typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (90°F) and lows dropping to around 22°C (72°F).

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

January Precipitation in Penang

In Penang in January, the precipitation amount is 323 mm (12.7 in) over the course of 23 days.

January Precipitation Trends in Penang

The chart displays monthly precipitation patterns in Penang, 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 Penang, January typically receives around 323 mm (12.7 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 Penang

In Penang in January, humidity is 78%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit sluggish as the air hangs thick, leaving you in need of frequent breaks to hydrate and find shade.

January Average Humidity in Penang

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

In Penang 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 Penang.

Maximum UV Index Levels in Penang for January

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

Data source: Penang 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 Penang Compares to Other Months

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

This table compares monthly weather conditions in Penang, 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)	323 mm (12.7 inches)	78%	extreme
February Weather	26°C (78°F)	248 mm (9.8 inches)	84%	extreme
March Weather	26°C (79°F)	312 mm (12.3 inches)	84%	extreme
April Weather	26°C (78°F)	142 mm (5.6 inches)	82%	extreme
May Weather	26°C (78°F)	57 mm (2.2 inches)	83%	extreme
June Weather	25°C (77°F)	23 mm (0.9 inches)	79%	very high
July Weather	24°C (76°F)	12 mm (0.5 inches)	74%	extreme
August Weather	24°C (76°F)	13 mm (0.5 inches)	71%	extreme
September Weather	26°C (78°F)	11 mm (0.4 inches)	70%	extreme
October Weather	27°C (80°F)	43 mm (1.7 inches)	69%	extreme
November Weather	27°C (80°F)	193 mm (7.6 inches)	70%	extreme
December Weather	26°C (80°F)	279 mm (11.0 inches)	72%	extreme