September weather forecast
Kiunga, Papua New Guinea

September in Kiunga marks a transition from the cooler conditions of the previous months to a warmer, wetter atmosphere. Significant indicators of this shift include a rise in temperature to 30.2°C (86.4°F), an increase in rainfall and a decrease in the number of sunshine days. Conversely, the decrease in wind speed works in tandem with the increasing humidity to produce a warmer climate. The evolving weather conditions instil a majestic, cool atmosphere all over the city, typical of fall season.

Temperature

The shift from August to September is characterized by an average high-temperature of a hot 30.2°C (86.4°F), not significantly different from the 29.5°C (85.1°F) of August. An average nighttime temperature of 22°C (71.6°F) is recorded during September.

Heat index

During September, the heat index is calculated to be an extremely hot 40°C (104°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In September, the average relative humidity is 87%.

Rainfall

In September, the rain falls for 22.1 days. Throughout September, 187mm (7.36") of precipitation is accumulated. Throughout the year, in Kiunga, there are 299.1 rainfall days, and 2723mm (107.2") of precipitation is accumulated.

Daylight

In Kiunga, the average length of the day in September is 12h and 4min.
On the first day of September in Kiunga, sunrise is at 06:34 and sunset at 18:34. On the last day of the month, sunrise is at 06:20 and sunset at 18:29 +10.

Sunshine

The average sunshine in September in Kiunga is 4.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 6 during September leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.