January in Port Moresby — the hardest end of the year
Hardest · 3.5/10January averages 29°C (83°F) with humidity around 79%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
279 mm of rain puts this in monsoon territory — about 22 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.5/10 here, 10th of 12 months, against 7.1/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, September is materially better in Port Moresby — 3.6 points higher on the same scale.
February in Port Moresby — the hardest end of the year
Hardest · 4.2/10February averages 28°C (83°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 138 mm this is a genuinely wet month: about 20 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.2/10 here, 9th of 12 months, against 7.1/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, September is materially better in Port Moresby — 2.9 points higher on the same scale.
March in Port Moresby — the hardest end of the year
Hardest · 3.5/10March averages 29°C (84°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
222 mm of rain puts this in monsoon territory — about 23 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.5/10 here, 11th of 12 months, against 7.1/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, September is materially better in Port Moresby — 3.6 points higher on the same scale.
April in Port Moresby — the hardest end of the year
Hardest · 4.4/10April averages 29°C (84°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 119 mm this is a genuinely wet month: about 20 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.4/10 here, 7th of 12 months, against 7.1/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, September is materially better in Port Moresby — 2.7 points higher on the same scale.
May in Port Moresby — the hardest end of the year
Hardest · 4.3/10May averages 28°C (83°F) with humidity around 84%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
At 113 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.3/10 here, 8th of 12 months, against 7.1/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, September is materially better in Port Moresby — 2.8 points higher on the same scale.
June in Port Moresby — workable with trade-offs
Trade-offs · 6.1/10June averages 27°C (81°F) with humidity around 83%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 51 mm, so plan one flexible day in three; you still get about 16 sunny days and 11.5 hours of daylight.
It scores 6.1/10 here, 5th of 12 months, against 7.1/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
July in Port Moresby — workable with trade-offs
Trade-offs · 6.8/10July averages 27°C (80°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 25 mm of rain — occasional showers rather than washed-out days — alongside about 15 sunny days and 11.5 daylight hours.
It scores 6.8/10 here, 2nd of 12 months, against 7.1/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
August in Port Moresby — workable with trade-offs
Trade-offs · 5.9/10August averages 27°C (80°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 87 mm, so plan one flexible day in three; you still get about 20 sunny days and 11.7 hours of daylight.
It scores 5.9/10 here, 6th of 12 months, against 7.1/10 in the destination's best month.
Expect mid-season pricing, and this is one of the busiest months here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
September in Port Moresby — the year's strongest window
Best window · 7.1/10September averages 27°C (81°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 34 mm of rain — occasional showers rather than washed-out days — alongside about 23 sunny days and 12 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Port Moresby at 7.1/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
October in Port Moresby — workable with trade-offs
Trade-offs · 6.5/10October averages 28°C (82°F) with humidity around 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 49 mm, so plan one flexible day in three; you still get about 25 sunny days and 12.2 hours of daylight.
It scores 6.5/10 here, 3rd of 12 months, against 7.1/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
November in Port Moresby — workable with trade-offs
Trade-offs · 6.5/10November averages 28°C (83°F) with humidity around 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Expect 42 mm of rain — occasional showers rather than washed-out days — alongside about 27 sunny days and 12.4 daylight hours.
It scores 6.5/10 here, 4th of 12 months, against 7.1/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
December in Port Moresby — the hardest end of the year
Hardest · 3.5/10December averages 29°C (84°F) with humidity around 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
218 mm of rain puts this in monsoon territory — about 23 sunny days across the whole month, and multi-day washouts are normal.
It scores 3.5/10 here, 12th of 12 months, against 7.1/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
If your dates are flexible, September is materially better in Port Moresby — 3.6 points higher on the same scale.
