Weather in Papua Nugini in September
Country-wide climate normals across 15 cities in Papua Nugini.
How Hot Is Papua Nugini in September?
Papua Nugini's September is consistently warm — typical 27°C, with no major regional outliers.
Sunshine in Papua Nugini in September
Persistent cloud and grey skies define Papua Nugini's September: about 1.1h of sun a day in Port Moresby. Daylight is in short supply too, running from 6:05 am to 6:05 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Papua Nugini In September?
Monsoon-like conditions dominate Papua Nugini's September: Port Moresby sees 328mm of rain across 23 days, similar nationwide. Heavy showers fall almost daily, often in dramatic afternoon downpours. Sunshine is brief between storms, and humidity stays high throughout the month.
Is Papua Nugini Humid In September?
Papua Nugini is enveloped in tropical-thick humidity through September: Port Moresby averages 83%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In Papua Nugini In September
Papua Nugini's September has gentle wind — Port Moresby averages 12 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Papua Nugini In September
Heavy overcast covers Papua Nugini in September: 77% cloud cover in Port Moresby, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.