August Weather in Sia, Vietnam

Last updated: August 28, 2025

In August, the average temperature in Sia, Vietnam reaches a warm 30°C (86°F). Expect minimums around 24°C (76°F) and highs soaring to 38°C (100°F). With an average precipitation of 189 mm (7.4 in) over 18 days, be prepared for some rainy spells, while the humidity remains high at 92%.

August Temperature in Sia

In August in Sia, the average temperature is 30°C (86°F). The maximum can reach 38°C (100°F), while the minimum can dip as low as 24°C (76°F). This warm climate makes it an ideal destination for travelers seeking sun and outdoor activities.

August Weather in Sia: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Sia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sia, August typically has an average temperature of 30°C (86°F), with highs reaching up to 38°C (100°F) and lows dropping to around 24°C (76°F).

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

August Precipitation in Sia

In Sia in August, the total precipitation amount is 189 mm (7.4 in) spread over a period of 18 days.

August Precipitation Trends in Sia

The chart displays monthly precipitation patterns in Sia, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Sia, August typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 18 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Sia

In Sia in August, humidity is 92%. With an average temperature of 30°C (86°F), this humidity feels like a tropical sauna, making it challenging for travelers to enjoy outdoor activities without frequent breaks for hydration and shade.

August Average Humidity in Sia

This chart illustrates the average monthly humidity levels in Sia, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Sia is approximately 92%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Sia

In Sia in August, 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 Sia, you can check here.

Maximum UV Index Levels in Sia for August

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

Data source: Sia August 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 August Weather in Sia Compares to Other Months

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

This table compares monthly weather conditions in Sia, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (71°F)	181 mm (7.1 inches)	77%	very high
February Weather	22°C (72°F)	96 mm (3.8 inches)	73%	extreme
March Weather	25°C (77°F)	81 mm (3.2 inches)	64%	extreme
April Weather	26°C (80°F)	132 mm (5.2 inches)	60%	extreme
May Weather	29°C (84°F)	175 mm (6.9 inches)	73%	extreme
June Weather	30°C (87°F)	146 mm (5.7 inches)	82%	extreme
July Weather	30°C (86°F)	220 mm (8.7 inches)	90%	extreme
August Weather	30°C (86°F)	189 mm (7.4 inches)	92%	extreme
September Weather	28°C (83°F)	274 mm (10.8 inches)	87%	extreme
October Weather	26°C (80°F)	585 mm (23.0 inches)	85%	extreme
November Weather	25°C (76°F)	605 mm (23.8 inches)	84%	very high
December Weather	22°C (72°F)	351 mm (13.8 inches)	83%	very high