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Alotau Weather in January

During January, Alotau experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 24°C (75°F). January sits within the rainy season, so expect regular and often heavy rainfall.

Rainfall in Alotau in January

As part of the rainy season, Alotau sees around 21 days of rain in January, with an average of 314 mm (12 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Alotau in January

January in Alotau brings very high temperatures, with highs of 31°C (88°F) and nights around 24°C (75°F). It's usually most comfortable outside during the morning and later in the day. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Alotau. Our weather planner can help you explore destinations with more pleasant weather conditions.

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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 January

Min TemperatureMin Temperature 24°C (75°F)  
Max TemperatureMax Temperature 31°C (88°F)  
Chance of RainChance of Rain 69%  
PrecipitationPrecipitation 314 mm (12 in)  
Rainy daysRainy days 21 days  
HumidityHumidity 75% *  
* Data from: Sideia, Papua New Guinea (42 KM, 26 Miles).

Historical weather for Alotau in January

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 January

Based on weather observations in Alotau between 2006 and 2025, these are the recorded extremes during January.

  • The warmest day in January was on January 15, 2018, with a maximum of 36°C (97°F).
  • The lowest daytime temperature in January was 26°C (79°F), recorded on January 9, 2022.
  • The coldest night in January in Alotau was on January 10, 2022, with a minimum of 22°C (72°F).
  • Peak precipitation in January occurred on January 7, 2013, when 152 mm (6 in) of precipitation was measured.

Best Places in Papua New Guinea in January

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 January →

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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 January

Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.

What To Do in Alotau in January

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