September Weather in Tomu, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Tomu, Indonesia is a warm 27°C (80°F), with minimums dipping to 23°C (74°F) and maximums reaching 31°C (89°F). Expect quite a bit of rain, with 188 mm (7.4 in) of precipitation spread over 23 days. The air feels quite humid, with an average humidity of 87%. Be prepared for a tropical experience!

September Temperature in Tomu

In September in Tomu, the average temperature is 27°C (80°F), with maximums reaching up to 31°C (89°F) and minimums dipping as low as 23°C (74°F). This pleasant climate makes it an ideal time for travelers to enjoy outdoor activities and explore the local attractions.

September Weather in Tomu: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Tomu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomu, September typically has an average temperature of 27°C (80°F), with highs reaching up to 31°C (89°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Tomu

In Tomu in September, the precipitation amount is 188 mm (7.4 in) distributed over a span of 23 days.

September Precipitation Trends in Tomu

The chart displays monthly precipitation patterns in Tomu, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Tomu, September typically receives around 188 mm (7.4 inches) of precipitation spread over approximately 23 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Tomu

In Tomu in September humidity is 87%. With an average temperature of 27°C (80°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and challenging for traveling.

September Average Humidity in Tomu

This chart illustrates the average monthly humidity levels in Tomu, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Tomu is approximately 87%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tomu

In Tomu in September, 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 Tomu.

Maximum UV Index Levels in Tomu for September

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

Data source: Tomu September 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 September Weather in Tomu Compares to Other Months

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

This table compares monthly weather conditions in Tomu, showing how September’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)	85%	extreme
February Weather	27°C (81°F)	310 mm (12.2 inches)	86%	extreme
March Weather	27°C (81°F)	374 mm (14.7 inches)	85%	extreme
April Weather	27°C (81°F)	389 mm (15.3 inches)	87%	extreme
May Weather	27°C (81°F)	322 mm (12.7 inches)	84%	extreme
June Weather	27°C (80°F)	258 mm (10.2 inches)	86%	extreme
July Weather	26°C (80°F)	253 mm (10.0 inches)	88%	extreme
August Weather	27°C (80°F)	151 mm (6.0 inches)	90%	extreme
September Weather	27°C (80°F)	188 mm (7.4 inches)	87%	extreme
October Weather	27°C (81°F)	249 mm (9.8 inches)	86%	extreme
November Weather	27°C (81°F)	268 mm (10.5 inches)	85%	extreme
December Weather	27°C (81°F)	338 mm (13.3 inches)	85%	extreme