Last updated: March 2, 2024
The weather in Sao Martinho, Portugal, during April is characterized by an average temperature of 15°C (60°F). Highs can soar to 20°C (69°F), while lows may dip to 12°C (53°F). Typically, the humidity level in Sao Martinho throughout April hovers around 78%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Sao Martinho averages 56 mm (2.2 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 0 minutes of daylight, with the sun shining for approximately 11 hours 43 minutes each day. Additionally, there is a 38% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Sao Martinho reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 14:00 and 16:00, 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 | 0 | 1 | 1 | 3 | 5 | 8 | 9 | 10 | 9 | 8 | 5 | 3 | 1 |
| Exposure | Low | Moderate | VeryHigh | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 15 min | 30 min | 45 min | ||||||||