Port Moresby - When to Visit

When to Visit Port Moresby

Climate guide & best times to travel

Monthly Climate Data for Port Moresby Average temperature and rainfall by month Climate Overview 17°C 22°C 27°C 32°C 37°C Rainfall (mm) 0 96 193 Jan Jan: 32.0°C high, 23.0°C low, 193mm rain Feb Feb: 31.0°C high, 23.0°C low, 140mm rain Mar Mar: 31.0°C high, 23.0°C low, 190mm rain Apr Apr: 31.0°C high, 23.0°C low, 104mm rain May May: 31.0°C high, 23.0°C low, 56mm rain Jun Jun: 30.0°C high, 23.0°C low, 23mm rain Jul Jul: 29.0°C high, 22.0°C low, 13mm rain Aug Aug: 30.0°C high, 22.0°C low, 13mm rain Sep Sep: 31.0°C high, 23.0°C low, 15mm rain Oct Oct: 32.0°C high, 23.0°C low, 15mm rain Nov Nov: 32.0°C high, 23.0°C low, 41mm rain Dec Dec: 32.0°C high, 23.0°C low, 99mm rain Temperature Rainfall
Port Moresby sits in the Pacific's most climatically surprising corner. For a Papua New Guinea capital, it is notably drier than you expect, shielded from the worst tropical rains by the Owen Stanley Range to the north. The result is a clear two-season rhythm: a wet season from roughly November through April, and a dry season that runs from May through October and can feel almost arid by regional standards. Temperatures barely budge across the year, hovering between 29°C and 32°C (84°F and 90°F) for highs and dipping to around 22°C to 24°C (72°F to 75°F) overnight. This gives Port Moresby that classic equatorial sameness where the calendar page matters more than the thermometer. The numbers miss the texture of the air. Humidity sits at a fairly steady 70 percent regardless of season. Expect warm, slightly thick air the moment you step off the plane. It is less punishing than Singapore or Bangkok. Yet midday exertion still feels more effortful than you would plan for. The dry season brings trade winds. They sweep in from the southeast and refresh the city. July and August in Port Moresby can feel almost pleasant by tropical standards. The wet season does not mean constant rain. January and March are the wettest months, bringing roughly 190 to 193 millimeters of rainfall. That often arrives as sharp afternoon downpours rather than the all-day soaking you would get in Cairns during a wet La Niña year. April begins to ease off. By May the city transitions into the long dry stretch where some months see less than two centimeters of rain total.

Best Time to Visit

Recommended timing for different travel styles.

Beach
June through September tend to be the most agreeable dry season months. Minimal rain interrupts time at beaches like Ela Beach. Calmer conditions make getting out on the water around Port Moresby's harbor easier.
Cultural
May and October offer a reasonable compromise. The rains have either wound down or have not fully arrived. Temperatures are manageable. Events like the Hiri Moale Festival in September sit conveniently near the end of the dry stretch when traveling conditions are at their easiest.
Adventure
June through August is the window to aim for. The trails dry out. The heat is marginally less punishing. Southeast trade winds make ridge-top hiking considerably more enjoyable than the still, humid air of the wet season.
Budget
The wet months of January through March tend to see fewer visitors passing through Port Moresby. This can translate to better availability and more negotiating room. The trade-off is the occasional afternoon that gets thoroughly rained out.

What to Pack

Essentials and seasonal recommendations for Port Moresby.

Year-Round Essentials
high-SPF sunscreen
Because the equatorial sun is direct regardless of season and the UV index climbs fast even through cloud cover.
A lightweight long-sleeved shirt
Serves double duty against sun during the day and air-conditioning in hotels and restaurants, which tend to run cold.
Insect repellent with DEET
Is non-negotiable, as mosquitoes are active year-round and malaria prophylaxis is recommended for the region.
A small dry bag or waterproof pouch
Protects electronics and documents on wet-season days when a downpour can arrive without warning.
Good-quality walking sandals with ankle support
handle both urban walking and light trail use around Port Moresby.
A reusable water bottle
Matters given the heat, and oral rehydration sachets are worth tucking in for the first few days while you acclimatise.
wet season months from November through April
Clothing
Swap to quick-dry fabrics across your whole wardrobe rather than cotton, which stays damp for hours.
Footwear
Waterproof sandals or shoes with drainage help when pavements flood after heavy afternoon rain.
Accessories
a compact travel umbrella you can carry daily
dry season from May through October
Clothing
Light linen or technical fabrics work better than heavier cottons during the hotter dry-season days in September and October.
Layering Tip
A light layer for evenings is not unnecessary. The trade winds can feel cool at night relative to what you are expecting.
Plug Type
Type I
Voltage
240V at 50Hz
Adapter Note
Fly in from North America, pack both a plug adapter and a voltage converter for most devices. Modern laptops and phone chargers usually handle the voltage automatically. Check labels first.
Skip These Items
Skip heavy jackets. Even the coolest nights in Port Moresby stay above 22°C (72°F). One light layer is plenty. Jeans trap heat and humidity. They also dry slowly after a downpour. Leave them at home. Elaborate camera gear without weatherproofing courts trouble during the wet season. Afternoon storms strike fast. Bring a rain cover or rent locally. Carry only the cash you need for the day. Port Moresby's security considerations demand caution. Experienced travelers keep a low profile and rely on hotel and tour-operator transport instead of walking unfamiliar areas after dark.
Full Packing Checklist

Interactive checklist with shopping links for every item you need.

View Port Moresby Packing List →

Month-by-Month Guide

Climate conditions and crowd levels for each month of the year.

January

January brings Port Moresby's most reliable rainfall of the year. Days often start clear and bright before clouds build through the afternoon toward a heavy downpour. The city feels quieter than at other times of year.

High 32°C (89°F)
Low None
Rainfall 193 millimeters
Crowds low
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February

February eases off slightly from January's peak. The pattern remains similar. Mornings tend to be the better half of the day. Evenings can feel close and warm.

High 31°C (88°F)
Low None
Rainfall 140 millimeters
Crowds low
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March

March returns to near-January levels. It is a wet month by Port Moresby's standards. That is still moderate by broader tropical comparisons.

High 31°C (88°F)
Low None
Rainfall 190 millimeters
Crowds low
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April

April is a genuine shift. The air begins to feel less oppressive. The transition is noticeable. Outdoor activities start feeling more practical.

High 31°C (88°F)
Low None
Rainfall 104 millimeters
Crowds medium
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May

May is when Port Moresby's character changes most distinctly. The trade winds start arriving and the city opens up. Highs with lower effective humidity make this one of the more comfortable months to walk around the city.

High 31°C (87°F)
Low None
Rainfall 56 millimeters
Crowds medium
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June

June brings the heart of the dry season. The trade winds are established. Evenings drop to a comfortable 23°C (73°F). The light has a clarity that the wet months do not offer.

High 30°C (86°F)
Low 23°C (73°F)
Rainfall 23 millimeters
Crowds medium to high
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July

July is arguably Port Moresby's most agreeable month. For a few weeks the city feels temperate by regional standards.

High 29°C (85°F)
Low 22°C (72°F)
Rainfall 13 millimeters
Crowds high
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August

August matches July almost exactly in rainfall and temperature. The trade winds remain consistent. Dry conditions make Varirata National Park's walking trails accessible.

High 30°C (86°F)
Low 22°C (72°F)
Rainfall 13 millimeters
Crowds high
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September

September sees the first signs of the dry season loosening its grip, though it is still firmly dry. The Hiri Moale Festival, which celebrates Port Moresby's traditional hiri trading culture, typically falls this month.

High 31°C (87°F)
Low None
Rainfall 15 millimeters
Crowds high
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October

October is a transitional month in the other direction. The rains have not arrived yet. But the trade winds ease and the heat starts building.

High 32°C (89°F)
Low None
Rainfall 15 millimeters
Crowds medium
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November

November sees the return of meaningful rainfall as the wet season re-establishes itself. The air grows heavier. The occasional pre-wet thunderstorm can arrive with little warning.

High 32°C (90°F)
Low None
Rainfall 41 millimeters
Crowds low to medium
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December

December rounds out the year. The wet season is building toward its January and March peaks. Afternoon downpours become a reliable feature. Mornings often remain dry and manageable.

High 32°C (90°F)
Low None
Rainfall 99 millimeters
Crowds low
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