August weather forecast
Port Moresby, Papua New Guinea

englishespañol中文
Share
The mountains and beautiful clear waters surrounding the beautiful Port Moresby, in Papua New Guinea
The mountains and beautiful clear waters surrounding the beautiful Port Moresby, in Papua New Guinea

Weather in August

Come August, the dry spell continues with a slight increment in rainfall to 71mm (2.8"). While the weather remains relatively identical to the prior month, the sea temperature hits an annual low of 25.6°C (78.1°F). The average daily sunshine hours and daylight duration suggest a continuity of more extended outdoor activities. Despite minor fluctuations, August stays remarkably consistent, preserving the distinct dry atmosphere. Therefore, the month of August contributes to the maintenance of the dry season trend.

Temperature

Port Moresby's coldest season falls during July and August, averaging a high-temperature of 27.6°C (81.7°F).

Heat index

The heat index in August is appraised at a tropical 31°C (87.8°F). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity in Port Moresby is 79%.

Rainfall

In August, in Port Moresby, the rain falls for 17.1 days. Throughout August, 71mm (2.8") of precipitation is accumulated. Throughout the year, in Port Moresby, there are 249.8 rainfall days, and 1311mm (51.61") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 25.6°C (78.1°F), August is the month with the coldest seawater in Port Moresby.
Note: For water activities like swimming, diving, and more, temperatures ranging between 25°C (77°F) and 29°C (84.2°F) offer superior comfort and enjoyment for lengthy durations.

Daylight

In Port Moresby, Papua New Guinea, the average length of the day in August is 11h and 49min.
On the first day of the month, sunrise is at 06:26 and sunset at 18:08. On the last day of August, in Port Moresby, sunrise is at 06:13 and sunset at 18:09 +10.

Sunshine

In Port Moresby, the average sunshine in August is 8.4h.

UV index

The months with the lowest UV index in Port Moresby are February, June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
[Resources]

Frequently asked questions

What month is the coldest in Port Moresby?

Port Moresby experiences its coldest period in July and August, averaging a high-temperature of 27.6°C (81.7°F).

What are August temperatures in Port Moresby?

An average high-temperature, in August, in Port Moresby, is 27.6°C (81.7°F) and the average low-temperature is 22.5°C (72.5°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is appraised at 31°C (87.8°F).

What is the average humidity in August in Port Moresby?

In August, the average relative humidity in Port Moresby is 79%.

How many days does it rain in August in Port Moresby?

In Port Moresby, Papua New Guinea, in August, it is raining for 17.1 days, with typically 71mm (2.8") of accumulated precipitation.

When is the sea coldest in Port Moresby?

The month with the coldest seawater is August, with an average sea temperature of 25.6°C (78.1°F).

How warm is the water in August in Port Moresby?

In Port Moresby, the average seawater temperature in August is 25.6°C (78.1°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in August in Port Moresby?

In August, the average day length is 11h and 49min.

When is the sunrise / sunset in August in Port Moresby?

In August, on the first day of the month, sunrise is at 06:26 and sunset at 18:08. On the last day of the month, in Port Moresby, sunrise is at 06:13 and sunset at 18:09 +10.

How many hours of sunshine does Port Moresby have in August?

The average sunshine duration in August in Port Moresby, Papua New Guinea, is 8.4h.

When is the lowest UV index in Port Moresby?

February, June through September, with an average maximum UV index of 6, are months with the lowest UV index in Port Moresby.

What is the UV index reading in August in Port Moresby?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in August
Port Moresby, Papua New Guinea

Average temperature in August - Port Moresby, Papua New Guinea
  • Average high temperature in August: 27.6°C

The warmest month (with the highest average high temperature) is December (30.2°C).
The months with the lowest average high temperature are July and August (27.6°C).

  • Average low temperature in August: 22.5°C

The month with the highest average low temperature is December (24.5°C).
The coldest month (with the lowest average low temperature) is August (22.5°C).

[Resources]

Average pressure in August
Port Moresby, Papua New Guinea

Average pressure in August - Port Moresby, Papua New Guinea
  • Average pressure in August: 1012.1mbar

The month with the highest atmospheric pressure is August (1012.1mbar).
The month with the lowest atmospheric pressure is January (1007.9mbar).

[Resources]

Average wind speed in August
Port Moresby, Papua New Guinea

Average wind speed in August - Port Moresby, Papua New Guinea
  • Average wind speed in August: 17.8km/h

The windiest month (with the highest average wind speed) is July (18.9km/h).
The calmest month (with the lowest average wind speed) is December (9.7km/h).

[Resources]

Average humidity in August
Port Moresby, Papua New Guinea

Average humidity in August - Port Moresby, Papua New Guinea
  • Average humidity in August: 79%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January and February (73%).

[Resources]

Average rainfall in August
Port Moresby, Papua New Guinea

Average rainfall in August - Port Moresby, Papua New Guinea
  • Average rainfall in August: 71mm

The wettest month (with the highest rainfall) is March (203mm).
The driest month (with the least rainfall) is July (46mm).

[Resources]

Average rainfall days in August
Port Moresby, Papua New Guinea

Average rainfall days in August - Port Moresby, Papua New Guinea
  • Average rainfall days in August: 17.1 days

The month with the highest number of rainy days is March (24.6 days).
The month with the least rainy days is July (14.7 days).

[Resources]

Average sea temperature in August
Port Moresby, Papua New Guinea

Average sea temperature in August - Port Moresby, Papua New Guinea
  • Average sea temperature in August: 25.6°C

The best month for swimming (with the highest average sea temperature) is January (29.7°C).
The coldest month (with the lowest average sea temperature) is August (25.6°C).

[Resources]

Average daylight in August /
Average sunshine in August
Port Moresby, Papua New Guinea

Average daylight in August / Average sunshine in August - Port Moresby, Papua New Guinea
  • Average daylight in August: 11h and 5min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).

  • Average sunshine in August: 8h and 2min

The month with the most sunshine is November (Average sunshine: 11h and 18min).
The month with the least sunshine is May (Average sunshine: 7h and 6min).

[Resources]

Average sunshine days in August
Port Moresby, Papua New Guinea

Average sunshine days in August - Port Moresby, Papua New Guinea
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is July (13.4 days).
The months with the least sunshine days are March and April (5.2 days).

[Resources]

Average UV index in August
Port Moresby, Papua New Guinea

Average UV index in August - Port Moresby, Papua New Guinea
  • Average UV index in August: 6

The months with the highest UV index are January, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are February, June, July, August and September (UV index 6).

[Resources]

Average cloud cover in August
Port Moresby, Papua New Guinea

Average cloud cover in August - Port Moresby, Papua New Guinea
  • Average cloud cover in August: 36

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is November (Cloud cover 28).

[Resources]

Average visibility in August
Port Moresby, Papua New Guinea

Average visibility in August - Port Moresby, Papua New Guinea
  • Average visibility in August: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

[Resources]

Port Moresby, Papua New Guinea

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location