Port Moresby weather in January
January in Port Moresby: sweltering, soaked, with clean air — a fair time to visit.
#12 of 12 months in Port Moresby · #440 of 604 destinations to visit in January · comfort 55/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Port Moresby climate normals — January
| Daytime high | 30°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 277 mm / 10.9 in | ⛈ soaked |
| Rainy days | 23 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 8.9 h/day | |
| Daylight | 12.6 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Port Moresby?
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Port Moresby in January — FAQ
- Is January a good time to visit Port Moresby?
- January in Port Moresby: sweltering, soaked, with clean air — a fair time to visit. It ranks #12 of 12 months for Port Moresby on SeasonMap's comfort score (55/100).
- What is the weather like in Port Moresby in January?
- In January, Port Moresby averages a daily high of 30.3°C and a low of 24.1°C, with about 276.5 mm of rain over roughly 23.4 rainy days.
- What is the air quality in Port Moresby in January?
- Port Moresby has a mean US Air Quality Index of about 39 in January.