December Weather in Sao Sebastiao

Last updated: March 2, 2024

The weather in Sao Sebastiao, 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 (56°F). Typically, the humidity level in Sao Sebastiao throughout December hovers around 85%.

13°C (56°F)

Minimum temperature

17°C (63°F)

Average temperature

19°C (67°F)

Maximum temperature

85%

Humidity

Precipitation and Sunshine hours

In December, Sao Sebastiao averages 122 mm (4.8 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 9 hours 29 minutes of daylight, with the sun shining for approximately 6 hours 14 minutes each day. Additionally, there is a 31% probability of sunny days during this period.

122 mm (4.8 inches)

Precipitation

13 rainy days

Rainy days

6 hours 14 minutes

Sunshine hours

31%

Chance of sun

UV Index

In December, the UV Index in Sao Sebastiao 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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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

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