Port Moresby
Papua New Guinea
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Port Moresby, Papua New Guinea

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
January, like December, is a hot summer month in Port Moresby, Papua New Guinea, with temperature in the range of an average low of 23.7°C (74.7°F) and an average high of 32.1°C (89.8°F).

Temperature

In Port Moresby, the average high-temperature in January is practically the same as in December - a still hot 32.1°C (89.8°F). The average low-temperature, in January, is 23.7°C (74.7°F).

Heat index

The average heat index is calculated to a scorching 44.3°C (111.7°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent.

Humidity

The average relative humidity in January is 79%.

Rainfall

January is the month with the most rainfall in Port Moresby. Rain falls for 18 days and accumulates 192.2mm (7.6") of precipitation.

Sea temperature

January is the month with the warmest seawater in Port Moresby, with an average sea temperature of 29.7°C (85.5°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Port Moresby, Papua New Guinea, the average length of the day is 12.6h.

Sunshine

In January, the average sunshine is 5.9h.

UV index

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 12 transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in January in Port Moresby?

In January, in Port Moresby, Papua New Guinea, the average high-temperature is 32.1°C (89.8°F), and the average low-temperature is 23.7°C (74.7°F).

What is the average humidity in January in Port Moresby?

The average relative humidity in January in Port Moresby is 79%.

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

In January, in Port Moresby, Papua New Guinea, the rain falls for 18 days. Throughout January, 192.2mm (7.6") of precipitation is accumulated.

What is the wettest month in Port Moresby?

January is the month with the most rainfall in Port Moresby, Papua New Guinea. Rain falls for 18 days and accumulates 192.2mm (7.6") of precipitation.

What is the month with the warmest sea water in Port Moresby?

January is the month with the warmest seawater in Port Moresby, with an average sea temperature of 29.7°C (85.5°F).

What is the water temperature in January in Port Moresby?

In January, the average sea temperature in Port Moresby is 29.7°C (85.5°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 January in Port Moresby?

In January, the average length of the day in Port Moresby, Papua New Guinea, is 12.6h.

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

In Port Moresby, Papua New Guinea, the average sunshine in January is 5.9h.

What is the month with the highest UV index in Port Moresby?

Months with the highest UV index in Port Moresby are January through April, August through December, with an average maximum UV index of 12.

What is the UV index intensity in January in Port Moresby?

In Port Moresby, Papua New Guinea, the average daily maximum UV index in January is 12. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to the Sun's UV rays.
Average temperature in January - Port Moresby, Papua New Guinea
  • Average high temperature in January: 32.1°C

The warmest month (with the highest average high temperature) is November (32.5°C).
The month with the lowest average high temperature is July (29.9°C).

  • Average low temperature in January: 23.7°C

Months with the highest average low temperature are January and December (23.7°C).
The coldest month (with the lowest average low temperature) is July (22.4°C).

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

The month with the highest relative humidity is April (82%).
The month with the lowest relative humidity is November (75%).

Average rainfall in January - Port Moresby, Papua New Guinea
  • Average rainfall in January: 192.2mm

The wettest month (with the highest rainfall) is January (192.2mm).
The driest month (with the lowest rainfall) is August (12mm).

Average rainfall days in January - Port Moresby, Papua New Guinea
  • Average rainfall days in January: 18 days

Months with the highest number of rainy days are January and March (18 days).
Months with the lowest number of rainy days are July and August (4 days).

Average sea temperature in January - Port Moresby, Papua New Guinea
  • Average sea temperature in January: 29.7°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).

Average daylight in January / Average sunshine in January - Port Moresby, Papua New Guinea
  • Average daylight in January: 12.6h

The month with the longest days is December (Average daylight: 12.7h).
Months with shortest days are June and July (Average daylight: 11.6h).

  • Average sunshine in January: 5.9h

The month with most sunshine is November (Average sunshine: 8.1h).
The month with least sunshine is February (Average sunshine: 5.6h).

Average UV index in January - Port Moresby, Papua New Guinea
  • Average UV index in January: 12

Months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 9).