Weather in Port Moresby in July 2026
Average weather
Average temperature in Port Moresby in July
The temperature in July is +84°F on average, with a range between a maximum of +86°F during the day and a minimum of +68°F at night.
The average maximum temperature goes down 10% by the end of the month, compared with the beginning of the month, from +84°F to +82°F.
Is Port Moresby warm or cold in July?
Port Moresby is typically warm in July.
Maximum temperatures go up compared to the previous month from +82°F to +82°F. The minimum temperature also goes up from +73°F to +73°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the coolest months in Port Moresby, here is the comparison with other months:
Climate in Port Moresby in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +82°F | +82°F | +82°F | ||||
| Min. temperature | ||||||
| +64°F | +64°F | +63°F | ||||
| Max. temperature | ||||||
| +88°F | +88°F | +88°F | ||||
| Rainfall | ||||||
| 45 mm | 31 mm | 31 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 83% | 81% | 80% | ||||
| Air pressure | ||||||
| 1010 HPa | 1010 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 2 | 1 | 2 | ||||
| Cloudy days | ||||||
| 12 | 17 | 17 | ||||
| Rainy days | ||||||
| 16 | 12 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as good as in June. The temperature levels stay the same in the area of +82°F for average maximum temperature during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 45 mm to 31 mm. It feels drier, as humidity decreases from 83% to 81%. The average wind speed doesn’t change much during July, staying around 3 m/s. The days becoming less sunny, going from 2 sunny days in June to 1 in July.
August brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Port Moresby is gradually increasing during July, going from 4 m/s to 5 m/s over the course of the month.
Rain
How was the weather last July in Port Moresby?
Climate Change Over the Years
The climate in Port Moresby in July has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+82°F) and the highest in 2024 (+86°F). The driest year was 1997 with only 892 mm of rainfall, and the wettest year was 2006 with 1873 mm.
FAQ
Is July a good time to visit Port Moresby?
Can you sunbathe in Port Moresby in July?
Is Port Moresby rainy in July?
Is it sunny in Port Moresby in July?
Other cities in Papua New Guinea
Monthly weather in Port Moresby
Source of the data
For this page, we’ve looked at the typical weather in Port Moresby, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
