May Weather in Halong, Indonesia

Last updated: August 23, 2025

In May, the average temperature in Halong, Indonesia is a pleasant 26°C (80°F), with minimums dipping to 22°C (72°F) and maximums reaching up to 33°C (92°F). Expect considerable moisture too, as precipitation averages around 212 mm (8.3 in) over 28 days. With an average humidity of 80%, it's the perfect time to experience the rich atmosphere of this vibrant locale.

May Temperature in Halong

In May in Halong, the average temperature is 26°C (80°F). Maximum can reach 33°C (92°F) and minimum can be as low as 22°C (72°F). This pleasant weather makes it an ideal time for travelers to enjoy outdoor activities and explore the local attractions.

May Weather in Halong: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Halong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Halong, May typically has an average temperature of 26°C (80°F), with highs reaching up to 33°C (92°F) and lows dropping to around 22°C (72°F).

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

May Precipitation in Halong

In Halong in May, the total precipitation amount is 212 mm (8.3 in) recorded over a span of 28 days.

May Precipitation Trends in Halong

The chart displays monthly precipitation patterns in Halong, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Halong, May typically receives around 212 mm (8.3 inches) of precipitation spread over approximately 28 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Halong

In Halong in May humidity is 80%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket, making it quite uncomfortable for traveling. The thick, heavy air can leave you feeling sticky and fatigued, making outdoor activities more challenging and necessitating frequent breaks for hydration and cooling down.

May Average Humidity in Halong

This chart illustrates the average monthly humidity levels in Halong, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Halong is approximately 80%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Halong

In Halong in May, 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 Halong, you can check here.

Maximum UV Index Levels in Halong for May

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

Data source: Halong May 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 May Weather in Halong Compares to Other Months

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

This table compares monthly weather conditions in Halong, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (78°F)	215 mm (8.5 inches)	83%	extreme
February Weather	26°C (79°F)	212 mm (8.4 inches)	83%	extreme
March Weather	26°C (79°F)	313 mm (12.3 inches)	84%	extreme
April Weather	26°C (79°F)	251 mm (9.9 inches)	82%	extreme
May Weather	26°C (80°F)	212 mm (8.3 inches)	80%	extreme
June Weather	26°C (79°F)	158 mm (6.2 inches)	81%	extreme
July Weather	25°C (78°F)	133 mm (5.2 inches)	82%	extreme
August Weather	26°C (78°F)	119 mm (4.7 inches)	82%	extreme
September Weather	26°C (79°F)	142 mm (5.6 inches)	77%	extreme
October Weather	26°C (79°F)	188 mm (7.4 inches)	78%	extreme
November Weather	26°C (79°F)	270 mm (10.6 inches)	77%	extreme
December Weather	26°C (79°F)	212 mm (8.3 inches)	80%	extreme