The weather in August in Port Moresby

It's warm in August in Port Moresby with an average temperature of 29°C. Temperatures this month range from a low of 28°C to a high of 30°C. At night, you can expect temperatures between 19°C and 22°C.

Looking for sun? August isn’t a good month to be in Port Moresby. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Port Moresby, Papua New Guinea. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 33°C in 2017, Port Moresby reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 19°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 25°C.

Rainfall amount

In August, there is an average of 126 mm of precipitation, spread over 15 days. The wind speed is around 5 Bft, mostly coming from the Southeast.

Daily weather in August for Port Moresby

Click on any day in August to get detailed info about the usual weather on that day in Port Moresby. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Port Moresby New York
Average temperature 29°C 30°C
Max. temperature 30°C 31°C
Min. temperature 19°C -5°C
Total precipitation 126 mm 79 mm
Rainy days 15 days 13 days

Start of August

The month of August starts in Port Moresby with hot temps, averaging around 30°C during the day and nights around 21°C.

Mid August

By mid-August, daytime temps stay steady at around 30°C, with nights around 21°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of August

By the end of August, the average daytime temperature in Port Moresby is around 30°C, while nighttime temps are about 22°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable trips to Port Moresby

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Port Moresby for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in Port Moresby, Papua New Guinea. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Port Moresby

Temperature in August in Port Moresby over the years

Precipitation charts

These charts show the average amount of precipitation in August in Port Moresby, Papua New Guinea. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in Port Moresby

Total precipitation in August in Port Moresby over the years

Daily UV index in August in Port Moresby

This chart shows the average daily UV index in August in Port Moresby, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in August in Port Moresby

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Average weather in Port Moresby by month

Click on a month below to see detailed weather info for Port Moresby. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.