September Weather in Tutong, Brunei Darussalam

Last updated: August 22, 2025

In September, the average temperature in Tutong, Brunei Darussalam is a warm 27°C (81°F). Expect temperatures to range from a minimum of 23°C (74°F) to a maximum of 32°C (91°F). During this month, the region experiences approximately 261 mm (10.3 in) of precipitation over 23 days, contributing to an average humidity of 85%. Be prepared for a balmy and slightly rainy experience!

September Temperature in Tutong

In September in Tutong, the average temperature is 27°C (81°F). The maximum can reach 32°C (91°F), while the minimum can be as low as 23°C (74°F). This pleasant climate makes it an ideal time for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Tutong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tutong, September typically has an average temperature of 27°C (81°F), with highs reaching up to 32°C (91°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Tutong

In Tutong in September, the precipitation amount is 261 mm (10.3 in) spread over 23 days.

September Precipitation Trends in Tutong

The chart displays monthly precipitation patterns in Tutong, 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 Tutong, September typically receives around 261 mm (10.3 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 Tutong

In Tutong in September humidity is 85%. With an average temperature of 27°C (81°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier as sweat clings to your skin and the air feels almost tangible, which can be quite challenging for traveling.

September Average Humidity in Tutong

This chart illustrates the average monthly humidity levels in Tutong, 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 Tutong is approximately 85%, 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 Tutong

In Tutong in September, 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 Tutong, you can check here.

Maximum UV Index Levels in Tutong for September

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

Data source: Tutong 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 Tutong Compares to Other Months

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

This table compares monthly weather conditions in Tutong, 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 (80°F)	225 mm (8.9 inches)	86%	extreme
February Weather	26°C (80°F)	139 mm (5.5 inches)	87%	extreme
March Weather	27°C (80°F)	172 mm (6.8 inches)	87%	extreme
April Weather	27°C (81°F)	220 mm (8.6 inches)	84%	extreme
May Weather	28°C (82°F)	223 mm (8.8 inches)	80%	extreme
June Weather	27°C (82°F)	251 mm (9.9 inches)	81%	extreme
July Weather	27°C (82°F)	213 mm (8.4 inches)	80%	extreme
August Weather	27°C (82°F)	227 mm (8.9 inches)	82%	extreme
September Weather	27°C (81°F)	261 mm (10.3 inches)	85%	extreme
October Weather	27°C (81°F)	292 mm (11.5 inches)	81%	extreme
November Weather	27°C (81°F)	296 mm (11.7 inches)	81%	extreme
December Weather	27°C (80°F)	297 mm (11.7 inches)	84%	extreme