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Alotau Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Alotau.
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10-day forecastForecast
Climate overview of Alotau
Alotau, Papua New Guinea, serves as a gateway to the Milne Bay islands. It’s known for its war history, vibrant culture, and island-hopping opportunities. The town has a steady, warm climate throughout the year and is also characterized by heavy rainfall. Now, let’s explore all the climate details to give you a complete picture.
Alotau Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Alotau - and find the best time to visit.
Monthly Temperature in Alotau
With minimal seasonal shifts, Alotau experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in February to a comfortable 27°C (81°F) in the coolest month, July.
Nights vary from 24°C (75°F) in February to around 22°C (72°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Alotau
Alotau has a notably wet climate with abundant precipitation, recording 3079 mm (121 in) of rainfall per year. Alotau offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month February (331 mm (13 in)) and the driest month July (193 mm (7.6 in)) is not too significant. For more details, please visit our Alotau Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Alotau by Month
The relative humidity is high throughout the year in Alotau.
The city experiences its highest humidity in June, reaching 84%. In January, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Sideia, Papua New Guinea (42 KM, 26 Miles).
Best Time to Visit Alotau
The most favourable weather available in Alotau usually occurs in July and August. Conditions are generally most challenging in January, February, March, April, May, June, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very wet
Feb
very wet
Mar
very wet
Apr
very wet
May
very wet
Jun
very wet
Jul
good
Aug
good
Sep
mixed
Oct
mixed
Nov
very wet
Dec
very wet
- Best overall: July and August
- Warmest weather: January, February, March, April, November and December
Frequently asked questions about the climate in Alotau
What is the best time to visit Alotau?
July and August typically offer the most optimal weather in Alotau. In contrast, January, February, March, April, May, June, November and December tend to have less optimal conditions.
What temperatures can I expect in Alotau?
Daytime highs range from 27°C (81°F) in July to 31°C (88°F) in February. Nighttime lows range from 22°C (72°F) to 24°C (75°F). Temperatures stay relatively stable year-round.
How much rain does Alotau get?
Annual rainfall is around 3079 mm (121 in). February is the wettest month with 331 mm (13 in), while July is the driest with 193 mm (7.6 in).
Alotau 3-Day Forecast
Alotau on the map
Alotau is highlighted - select any city to see its climate.
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