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

The advent of January brings an average high-temperature of a moderately hot 29.8°C (85.6°F), exhibiting minor difference from the previous month. The average low-temperature of 24.4°C (75.9°F) is witnessed in Waigani during January.

Heat index

For January, the heat index is estimated at a very hot 35°C (95°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

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

Rainfall

In Waigani, Papua New Guinea, in January, it is raining for 23.4 days, with typically 156mm (6.14") of accumulated precipitation. In Waigani, during the entire year, the rain falls for 249.8 days and collects up to 1311mm (51.61") of precipitation.

Daylight

The average length of the day in January is 12h and 36min.
On the first day of January in Waigani, Papua New Guinea, 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

The average sunshine in January is 8.9h.

UV index

January, March through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 during January leads to these advisories:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.