December Weather in Viseu

Last updated: March 2, 2024

The weather in Viseu, Portugal, during December is characterized by an average temperature of 8°C (47°F). Highs can soar to 16°C (61°F), while lows may dip to 0°C (33°F). Typically, the humidity level in Viseu throughout December hovers around 87%.

0°C (33°F)

Minimum temperature

8°C (47°F)

Average temperature

16°C (61°F)

Maximum temperature

87%

Humidity

Precipitation and Sunshine hours

In December, Viseu averages 174 mm (6.8 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 9 hours 18 minutes of daylight, with the sun shining for approximately 5 hours 52 minutes each day. Additionally, there is a 33% probability of sunny days during this period.

174 mm (6.8 inches)

Precipitation

13 rainy days

Rainy days

5 hours 52 minutes

Sunshine hours

33%

Chance of sun

UV Index

In December, the UV Index in Viseu reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 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	2	2	2	1	1	0	0	0
Exposure	Low
Time to burn	45 min