Last updated: March 2, 2024
The weather in Surabaya, Indonesia, during April is characterized by an average temperature of 29°C (84°F). Highs can soar to 33°C (92°F), while lows may dip to 25°C (78°F). Typically, the humidity level in Surabaya throughout April hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Surabaya averages 175 mm (6.9 inches) of rainfall, typically over the course of 24 rainy days. The month enjoys an average of 11 hours 55 minutes of daylight, with the sun shining for approximately 9 hours 32 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Surabaya reaches a maximum of 12, 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 | 12 | 12 | 10 | 7 | 3 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||