September Weather in Bo, Vietnam

Last updated: August 28, 2025

In Bo, Vietnam, the average temperature in September is a warm 27°C (81°F). Temperatures can dip as low as 21°C (69°F) and soar up to 35°C (95°F). Expect 272 mm (10.7 in) of precipitation spread over 23 days, contributing to an average humidity of 82%. Embrace the tropical vibe!

September Temperature in Bo

In September in Bo, the average temperature is 27°C (81°F). Maximums can reach 35°C (95°F) and minimums can be as low as 21°C (69°F). This pleasant climate makes Bo an ideal destination for travelers seeking warmth and outdoor activities.

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

The chart illustrates September temperature patterns in Bo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bo, September typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (95°F) and lows dropping to around 21°C (69°F).

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

September Precipitation in Bo

In Bo in September, the precipitation amount is 272 mm (10.7 in) spread over 23 days.

September Precipitation Trends in Bo

The chart displays monthly precipitation patterns in Bo, 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 Bo, September typically receives around 272 mm (10.7 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 Bo

In Bo in September 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.

September Average Humidity in Bo

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

In Bo in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Bo.

Maximum UV Index Levels in Bo for September

The chart shows the monthly maximum UV Index (UVI) for Bo 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 Bo typically reaches 13, which falls under the extreme exposure category.

Data source: Bo 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 Bo Compares to Other Months

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

This table compares monthly weather conditions in Bo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	67 mm (2.6 inches)	66%	very high
February Weather	18°C (64°F)	46 mm (1.8 inches)	71%	very high
March Weather	21°C (71°F)	77 mm (3.0 inches)	69%	extreme
April Weather	24°C (75°F)	175 mm (6.9 inches)	64%	extreme
May Weather	27°C (81°F)	231 mm (9.1 inches)	73%	extreme
June Weather	29°C (85°F)	266 mm (10.5 inches)	81%	extreme
July Weather	28°C (84°F)	351 mm (13.8 inches)	90%	extreme
August Weather	28°C (83°F)	460 mm (18.1 inches)	89%	extreme
September Weather	27°C (81°F)	272 mm (10.7 inches)	82%	extreme
October Weather	24°C (75°F)	313 mm (12.3 inches)	77%	extreme
November Weather	21°C (70°F)	66 mm (2.6 inches)	72%	very high
December Weather	17°C (63°F)	44 mm (1.7 inches)	71%	high