September Weather in Biak

Last updated: March 2, 2024

The weather in Biak, Indonesia, during September is characterized by an average temperature of 27°C (81°F). Highs can soar to 29°C (84°F), while lows may dip to 25°C (77°F). Typically, the humidity level in Biak throughout September hovers around 78%.

25°C (77°F)

Minimum temperature

27°C (81°F)

Average temperature

29°C (84°F)

Maximum temperature

78%

Humidity

Precipitation and Sunshine hours

In September, Biak averages 239 mm (9.4 inches) of rainfall, typically over the course of 25 rainy days. The month enjoys an average of 12 hours 5 minutes of daylight, with the sun shining for approximately 9 hours 27 minutes each day. Additionally, there is a 24% probability of sunny days during this period.

239 mm (9.4 inches)

Precipitation

25 rainy days

Rainy days

9 hours 27 minutes

Sunshine hours

24%

Chance of sun

UV Index

In September, the UV Index in Biak 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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 4 8 12 14 15 13 9 5 2 1 0 0
Exposure Low Moderate VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 15 min 10 min 15 min 30 min 45 min

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