Port Moresby Weather in July
What's the weather like in Port Moresby (National Capital District) in July 2025?
The climate in Port Moresby during July can be summarized as hot, humid and reasonably dry.
July is in the winter in Port Moresby and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 28.8°C 83.8°F |
|---|---|
| Nightly temperature | 21.8°C 71.2°F |
| Average temperature | 25.3°C 77.5°F |
| Daily sunshine | 6.1 hrs |
| Avg rainfall | 40 mm 1.6 ins |
| Rainy days | 7 days |
| Sea temperature | 25.9°C 78.6°F |
| Humidity | 78% |
| Windspeed | 18.7kph 12 mph |
On average July is the driest month of the year in Port Moresby with around 40mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 hours of sunshine per day.
July temperatures in Port Moresby
July rainfall
July hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Port Moresby in July 2025.
Other monthly averages
Port Moresby weather stats
| Hottest month: | December | 31.3°C 88.3°F |
|---|---|---|
| Driest month: | July | 40mm 1.6ins |
| Sunniest month: | October | 7.6hrs |
| Coldest month: | July | 28.6°C 83.5°F |
| Wettest month: | March | 248mm 9.8ins |
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