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Alotau Weather in May

May in Alotau brings high temperatures around 29°C (84°F) during the day, dropping to 23°C (73°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in Alotau in May

As part of the rainy season, Alotau sees around 18 days of rain in May, with an average of 263 mm (10 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.

Temperature in Alotau in May

Temperatures in Alotau in May top out at 29°C (84°F) and drop to 23°C (73°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights remain mild at 23°C (73°F), making evenings a pleasant time to be outdoors.

May in Alotau has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Alotau's climate page.

Alotau Temperature in May

Min TemperatureMin Temperature 23°C (73°F)  
Max TemperatureMax Temperature 29°C (84°F)  
Chance of RainChance of Rain 58%  
PrecipitationPrecipitation 263 mm (10 in)  
Rainy daysRainy days 18 days  
HumidityHumidity 82% *  
* Data from: Sideia, Papua New Guinea (42 KM, 26 Miles).

Historical weather for Alotau in May

Browse day-by-day weather records for Alotau spanning 26 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Alotau historical weather extremes in May

Our historical data for Alotau spans 2005 to 2025, revealing these weather extremes.

  • The hottest May day on record in Alotau reached 33°C (91°F) (May 21, 2017).
  • The coldest May day was on May 7, 2008, with a maximum of 25°C (77°F).
  • The coldest night in May in Alotau was on May 21, 2008, with a minimum of 19°C (66°F).

Best Places in Papua New Guinea in May

Find out more about the weather in Papua New Guinea and which places have the best travel conditions in this month. See all of Papua New Guinea in May →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Alotau in May

Warm but pleasant conditions in Alotau in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.

What To Do in Alotau in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Alotau's climate page.

More climate data for Alotau