January weather forecast
Waigani, Papua New Guinea

The weather patterns in Waigani start the year with a warm and rainy outlook. Temperatures tend to hover around the upper twenties range, notable for the high of 29.8°C (85.6°F). However, the humidity is high due to the significant amount of rainfall received during the month. The frequent showers coupled with relatively short daylight hours make this month less ideal for outdoor activities. Visitors and residents may experience the occasional gusty wind, setting the tone for a typical tropical January in Waigani.

Temperature

Waigani's average high-temperature marks a moderately hot 29.8°C (85.6°F) with the advent of January, closely mirroring that of the preceding month. January in Waigani is noted for a mean low-temperature of 24.4°C (75.9°F).

Heat index

January's average heat index is calculated to be a very hot 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

January and February, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Waigani, in January, it is raining for 23.4 days, with typically 156mm (6.14") of accumulated precipitation. Throughout the year, there are 249.8 rainfall days, and 1311mm (51.61") of precipitation is accumulated.

Daylight

In Waigani, the average length of the day in January is 12h and 36min.
On the first day of January, sunrise is at 05:54 and sunset at 18:34. On the last day of the month, sunrise is at 06:08 and sunset at 18:40 +10.

Sunshine

In Waigani, the average sunshine in January is 8.9h.

UV index

The months with the highest UV index are January, March through May, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In January, a daily maximum UV index of 7 leads to the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.