Last updated: March 2, 2024
The weather in Porto, Brazil, during May is characterized by an average temperature of 27°C (81°F). Highs can soar to 33°C (92°F), while lows may dip to 23°C (73°F). Typically, the humidity level in Porto throughout May hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Porto averages 149 mm (5.9 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 11 hours 55 minutes of daylight, with the sun shining for approximately 10 hours 15 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Porto reaches a maximum of 13, 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.
| 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 | 7 | 10 | 12 | 13 | 11 | 8 | 4 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 30 min | 45 min | |||||