Last updated: March 2, 2024
The weather in Ribeira Grande, Portugal, during May is characterized by an average temperature of 17°C (62°F). Highs can soar to 19°C (66°F), while lows may dip to 13°C (56°F). Typically, the humidity level in Ribeira Grande throughout May hovers around 83%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Ribeira Grande averages 63 mm (2.5 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 14 hours 16 minutes of daylight, with the sun shining for approximately 10 hours 47 minutes each day. Additionally, there is a 30% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Ribeira Grande reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 1 | 2 | 4 | 6 | 8 | 10 | 10 | 9 | 7 | 5 | 3 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||