Last updated: March 2, 2024
The weather in Rio das Ostras, Brazil, during April is characterized by an average temperature of 24°C (76°F). Highs can soar to 34°C (93°F), while lows may dip to 18°C (65°F). Typically, the humidity level in Rio das Ostras throughout April hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Rio das Ostras averages 73 mm (2.9 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 11 hours 32 minutes of daylight, with the sun shining for approximately 10 hours 4 minutes each day. Additionally, there is a 55% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Rio das Ostras reaches a maximum of 11, 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 | 1 | 3 | 6 | 9 | 11 | 11 | 10 | 7 | 4 | 2 | 1 | 0 | 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 | ||||