Last updated: March 2, 2024
The weather in Port Moresby, Papua New Guinea, during September is characterized by an average temperature of 25°C (78°F). Highs can soar to 29°C (85°F), while lows may dip to 22°C (71°F). Typically, the humidity level in Port Moresby throughout September hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In September, Port Moresby averages 81 mm (3.2 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 2 minutes of daylight, with the sun shining for approximately 9 hours 17 minutes each day. Additionally, there is a 23% probability of sunny days during this period.
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Rainy days
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Chance of sun
In September, the UV Index in Port Moresby reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 3 | 6 | 11 | 14 | 15 | 14 | 10 | 6 | 3 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 25 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||