Last updated: March 2, 2024
The weather in Santo Antao, Portugal, during December is characterized by an average temperature of 17°C (63°F). Highs can soar to 19°C (67°F), while lows may dip to 13°C (57°F). Typically, the humidity level in Santo Antao throughout December hovers around 85%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In December, Santo Antao averages 116 mm (4.6 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 9 hours 30 minutes of daylight, with the sun shining for approximately 6 hours 28 minutes each day. Additionally, there is a 27% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In December, the UV Index in Santo Antao reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||