December Weather in Surabaya

Last updated: March 2, 2024

The weather in Surabaya, Indonesia, during December is characterized by an average temperature of 27°C (81°F). Highs can soar to 34°C (94°F), while lows may dip to 24°C (75°F). Typically, the humidity level in Surabaya throughout December hovers around 80%.

24°C (75°F)

Minimum temperature

27°C (81°F)

Average temperature

34°C (94°F)

Maximum temperature

80%

Humidity

Precipitation and Sunshine hours

In December, Surabaya averages 340 mm (13.4 inches) of rainfall, typically over the course of 29 rainy days. The month enjoys an average of 12 hours 22 minutes of daylight, with the sun shining for approximately 8 hours 50 minutes each day. Additionally, there is a 5% probability of sunny days during this period.

340 mm (13.4 inches)

Precipitation

29 rainy days

Rainy days

8 hours 50 minutes

Sunshine hours

5%

Chance of sun

UV Index

In December, the UV Index in Surabaya reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 2 4 8 11 14 14 12 9 5 2 1 1 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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