The climate of Porsgrunn in December is humid. An average of 94 mm precipitation is recorded over 14 days. The situation is drier than the previous month: in November, the average recorded is 115 mm over 16 days.
Temperatures are very cold in Porsgrunn in December: it is necessary to dress warmly. The average maximum temperature reaches 1°C, while the minimum falls to about -1°C. The month's average temperature is 0°C. These normals should be compared with the records recorded in Porsgrunn in December: 11°C as a maximum in 2017 and -17°C as a minimum in 2010. Plan for about 17 days with temperatures below 0°, which is 55% of the month.
In December, the days last on average 06:11 in Porsgrunn. The sun rises around 09:11 and sets around 15:22.
With very unfavorable weather, the month of December is generally not recommended for traveling to Porsgrunn in Norway.
In December, the most favorable activities in Porsgrunn are: Winter sports and snow.
By contrast, these activities are not recommended or are ill-suited in Porsgrunn in December: Beach and swimming, Nature and landscapes and Boat trip and cruise.