Port Moresby Climate Shift Score
Papua New Guinea · Oceania · Climate Shift score
This page ranks Port Moresby's own 50 year weather trend against every other live world capital, using the same full-record regression already shown on its Meteo Future Trends page. For where that trend has already gone, see the Climate Capitals trend history, or for current and historical day-to-day weather, see Meteo Capital Cities.See the full ranking of all live world capitals on the interactive map.
Score based on complete years through 2025.
Frequently asked questions about Port Moresby's Climate Shift Index score
How fast is Port Moresby's climate changing compared to other capitals?
Port Moresby ranks 203 of 245 world capitals for how fast its climate is shifting. That places the city in the slowest-changing third, which does not mean nothing is changing here, only that it is moving more slowly than elsewhere. The ranking measures pace of change, not how hot or how pleasant a city is.
What is changing fastest in Port Moresby?
The fastest-shifting variable in Port Moresby is precipitation, at +70 mm/decade. That is the change per decade, fitted as a linear trend across 1976 to 2025, so over 50 years of measured data rather than two isolated years.
How much is Port Moresby warming per decade?
Port Moresby is warming at +0.04°C/decade across 1976 to 2025. Over thirty years that works out at roughly 0.1°C. The trend accounts for 3% of the variation between years; the rest is ordinary year-to-year swing.
Is Port Moresby getting more extreme heat days?
Days above 30°C are increasing by +5.3 days/decade in Port Moresby. On this trend that is roughly 16 days gained or lost every thirty years.
Is Port Moresby losing its winter?
Frost days are declining by +0.0 days/decade in Port Moresby. Frost days are often the fastest-shifting variable in this dataset: cold extremes tend to warm faster than hot ones, which bears directly on anything sized for a cold season.
What does Port Moresby's Climate Shift Index score actually mean?
The score folds six variables (temperature, tropical days, frost days, precipitation, sunshine hours and wind speed) into one number, converting each into a percentile against every other ranked capital. Port Moresby scores 31.8. A low score does not mean nothing is changing, only that other capitals are shifting faster, and the score says nothing about how liveable or how warm a city is.
