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%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
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.
Precipitation
Rainy days
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Chance of sun
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.
| 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 | ||||||