Port Moresby weather by month & the best time to visit
Papua New Guinea · beach resort · tropical — wet & dry seasons climate
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The best time to visit Port Moresby is July — its sunniest month (Sunshine Score 88/100), with June and May close behind. Port Moresby averages about 2,354 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 24 mm of rain in July.
When is the best time to visit Port Moresby?
For sunshine, the best time to visit Port Moresby is July, then June and May. The dullest month is October (59/100, 47 mm of rain). The full month-by-month picture is in the table below.
How sunny is Port Moresby?
Port Moresby gets a moderate 2,354 hours of sunshine a year. July (88/100) is noticeably better than October (59). It ranks #3 of 37 destinations in Papua New Guinea for annual sunshine, above the national median of 2,055 hours. Rain has a clear season: the wettest stretch, around February, carries about 52% of the annual 1,285 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 65 | 31° / 88°F | 25° / 77°F | 225 mm | 11 | 31° / 88°F |
| February | 65 | 30° / 86°F | 24° / 75°F | 153 mm | 11 | 30° / 86°F |
| March | 65 | 30° / 86°F | 24° / 75°F | 292 mm | 11 | 31° / 88°F |
| April | 67 | 31° / 88°F | 24° / 75°F | 139 mm | 10 | 31° / 88°F |
| May | 79 | 31° / 88°F | 24° / 75°F | 75 mm | 9 | 28° / 82°F |
| June | 80 | 32° / 90°F | 23° / 73°F | 69 mm | 8 | 27° / 81°F |
| July | 88 | 32° / 90°F | 22° / 72°F | 24 mm | 8 | 26° / 79°F |
| August | 76 | 33° / 91°F | 22° / 72°F | 42 mm | 9 | 26° / 79°F |
| September | 68 | 34° / 93°F | 23° / 73°F | 40 mm | 10 | 26° / 79°F |
| October | 59 | 35° / 95°F | 24° / 75°F | 47 mm | 11 | 27° / 81°F |
| November | 64 | 34° / 93°F | 24° / 75°F | 70 mm | 11 | 29° / 84°F |
| December | 65 | 33° / 91°F | 25° / 77°F | 109 mm | 11 | 31° / 88°F |
Sea temperature in Port Moresby by month
The sea off Port Moresby is warmest in January at around 31°C / 88°F, and coolest in July at 26°C / 79°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Port Moresby compares month by month: Port Moresby vs Jayapura · Port Moresby vs Cairns · Port Moresby vs Merauke · Port Moresby vs Honiara · all comparisons
Port Moresby: questions and answers
What kind of destination is Port Moresby?
Port Moresby is a beach resort in Papua New Guinea with a tropical — wet & dry seasons climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Port Moresby get a year?
Port Moresby gets about 2,354 hours of sunshine a year, at its best around July.
When is the best time to visit Port Moresby?
The sunniest time to visit Port Moresby is July, when the Sunshine Score peaks at 88/100 (with June and May close behind). Expect daytime highs around 32°C / 90°F.
What is the least sunny month in Port Moresby?
October is the least sunny month in Port Moresby, scoring 59/100 with about 47 mm of rain.
What is the sea temperature in Port Moresby?
The sea in Port Moresby ranges from about 26°C (July) to 31°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Port Moresby?
The typical midday UV index in Port Moresby peaks around 11 (extreme) in January, easing to about 8 (very high) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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