Last updated: March 2, 2024
The weather in Avarua, Cook Islands, during September is characterized by an average temperature of 23°C (74°F). Highs can soar to 25°C (77°F), while lows may dip to 21°C (69°F). Typically, the humidity level in Avarua throughout September hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Avarua averages 64 mm (2.5 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 58 minutes of daylight, with the sun shining for approximately 8 hours 56 minutes each day. Additionally, there is a 53% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In September, the UV Index in Avarua reaches a maximum of 11, 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 | 2 | 4 | 7 | 10 | 11 | 11 | 9 | 6 | 3 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||