Alotau Temperature by Month
Alotau in Papua Region, Papua New Guinea enjoys a stable climate, with daytime temperatures staying close to 29°C (84°F) throughout the year. Explore the full monthly breakdown below.
Alotau Monthly Temperatures
In Alotau temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a comfortable 27°C (81°F) in August to a very warm 31°C (88°F) in February. Nighttime lows range from 24°C (75°F) in February to 22°C (72°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Alotau by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.
The chart below shows the average temperature throughout the year:
Historical Alotau Temperatures: 2001-2026
Browse day-by-day temperature records for Alotau spanning 26 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Alotau vs Papua New Guinea
The map below shows the annual temperature across Papua New Guinea. You can also select individual months if you want to compare a specific time of year.
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Alotau vs World: Temperature Compared
Alotau's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Alotau?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Alotau, August is the coolest month, with average highs of 27°C (81°F) and humidity around 82% — considered very high. In February, the warmest month, temperatures average 31°C (88°F) with 76% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Alotau's weather — including monthly rainfall, sunshine hours, and humidity — visit our Alotau climate page.
