Sornfelli is a mountain plateau on the island of Streymoy in the Faroe Islands about 12 km from the capital Tórshavn (20 km by road). It is the site of a military station at 725m above sea level (asl). The Sornfelli Meteorological Station installed in 1999 is located in the middle of the 40,000 m Sornfelli Mountain top plateau, also at 725m asl.

Temperatures at the meteorological station in 2000 were:

• Mean annual air temperature: +1.7 °C
• Mean coldest month (April): −2.2 °C
• Mean warmest month (August): 6.5 °C

From Tórshavn you can drive over the mountain road "Oyggjarvegin" to the Sornfelli Mountain plateau. There is a public road up to the Sornfelli Mountain plateau, but not the last 200 m to the radar base. The mountain of Sornfelli has a height of 749m.

• 
  Radar base
• 
  Skælingsfjall 749 m
• 
  Sornfelli plateau
• 
  Sornfelli plateau