Climate of Port Moresby, Papua New Guinea
Area-weighted average across Port Moresby. For where people actually live and travel, see the cities below.
Port Moresby, a subdivision of Papua New Guinea, has a consistently warm climate on average. Area-weighted monthly temperatures across the whole territory range from 25.8°C / 78.4°F in July to 27.7°C / 81.9°F in December, with rainfall from 49 mm / 1.9 in to 252 mm / 9.9 in depending on the season (1489 mm / 58.6 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 27.5°C81.5°F | 211 mm8.3″ | Tropical |
| February | 27.3°C81.1°F | 197 mm7.8″ | Tropical |
| March | 27.1°C80.8°F | 252 mm9.9″ | Tropical |
| April | 27°C80.6°F | 155 mm6.1″ | Tropical |
| May | 26.9°C80.4°F | 123 mm4.8″ | Tropical |
| June | 26.2°C79.2°F | 78 mm3.1″ | — |
| July | 25.8°C78.4°F | 49 mm1.9″ | — |
| August | 25.9°C78.6°F | 51 mm2″ | — |
| September | 26.5°C79.7°F | 62 mm2.4″ | — |
| October | 27.1°C80.8°F | 78 mm3.1″ | — |
| November | 27.6°C81.7°F | 83 mm3.3″ | Tropical |
| December | 27.7°C81.9°F | 150 mm5.9″ | Tropical |
Frequently asked questions
What is the best time to visit Port Moresby?
Port Moresby, Papua New Guinea does not have a clear sunny-and-dry window by our cutoffs. The warmest month is December at 27.7°C / 81.9°F, and the driest is July at 49 mm / 1.9 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Port Moresby?
Port Moresby, Papua New Guinea has area-weighted monthly average temperatures ranging from 25.8°C / 78.4°F in July to 27.7°C / 81.9°F in December. Annual rainfall averages about 1489 mm / 58.6 in, with the wettest month being March (252 mm / 9.9 in) and the driest July (49 mm / 1.9 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Port Moresby?
The hottest month in Port Moresby is December, with an area-wide average temperature of 27.7°C / 81.9°F.
What is the coldest month in Port Moresby?
The coldest month in Port Moresby is July, with an area-wide average temperature of 25.8°C / 78.4°F.
When does it rain most in Port Moresby?
The wettest month in Port Moresby is March, averaging about 252 mm / 9.9 in of rainfall. The driest is July with about 49 mm / 1.9 in.