May Weather in Alotau, Papua New Guinea

Last updated: August 31, 2025

In Alotau, Papua New Guinea, the average temperature in May hovers around 25°C (78°F), providing a comfortable climate for visitors. However, temperatures can dip to a minimum of 21°C (71°F) and soar to a maximum of 31°C (87°F). Expect some showers, with an average precipitation of 218 mm (8.6 in) spread over 25 days, contributing to a humid atmosphere with an average humidity level of 85%.

May Temperature in Alotau

In May, in Alotau, the average temperature is 25°C (78°F). Maximums can reach 31°C (87°F), while minimums can drop to as low as 21°C (71°F). This pleasant weather makes it an ideal time for traveling and exploring the outdoor attractions in Alotau.

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

The chart illustrates May temperature patterns in Alotau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alotau, May typically has an average temperature of 25°C (78°F), with highs reaching up to 31°C (87°F) and lows dropping to around 21°C (71°F).

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

May Precipitation in Alotau

In Alotau in May, the total precipitation amount is 218 mm (8.6 in) recorded over the course of 25 days.

May Precipitation Trends in Alotau

The chart displays monthly precipitation patterns in Alotau, 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 Alotau, May typically receives around 218 mm (8.6 inches) of precipitation spread over approximately 25 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Alotau

In Alotau in May humidity is 85%. With an average temperature of 25°C (78°F), this humidity feels like traveling through a warm, damp blanket that clings to your skin, making even short walks feel exhausting and prompting frequent breaks in the shade or a refreshing drink to stay cool.

May Average Humidity in Alotau

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

In Alotau in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Alotau.

Maximum UV Index Levels in Alotau for May

The chart shows the monthly maximum UV Index (UVI) for Alotau 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 Alotau typically reaches 12, which falls under the extreme exposure category.

Data source: Alotau 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 Alotau Compares to Other Months

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

This table compares monthly weather conditions in Alotau, 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 (80°F)	283 mm (11.1 inches)	80%	extreme
February Weather	27°C (80°F)	306 mm (12.1 inches)	79%	extreme
March Weather	26°C (79°F)	368 mm (14.5 inches)	79%	extreme
April Weather	26°C (79°F)	334 mm (13.1 inches)	81%	extreme
May Weather	25°C (78°F)	218 mm (8.6 inches)	85%	extreme
June Weather	24°C (76°F)	324 mm (12.8 inches)	85%	very high
July Weather	24°C (76°F)	272 mm (10.7 inches)	83%	extreme
August Weather	24°C (75°F)	248 mm (9.8 inches)	82%	extreme
September Weather	24°C (76°F)	357 mm (14.1 inches)	80%	extreme
October Weather	25°C (77°F)	309 mm (12.2 inches)	82%	extreme
November Weather	26°C (78°F)	250 mm (9.8 inches)	81%	extreme
December Weather	26°C (80°F)	243 mm (9.6 inches)	80%	extreme