Start and finish:

Swim from the tip of Mjóanes in the north to a sandy beach near Riðvík in the south.

Weather

Þingvellir current weather conditions from automatic weather stations.

Þingvellir weather forecast for next few days from automatic weather stations.

Water temperature

Approx. 10°C (50°F) in July (data provided by the National Power Company of Iceland)

Average wind velocity.

3.3 m/s (6.4 kts) in July from 1996 to 2009 (data provided by the Icelandic Met Office).

Windsock for July from 1996 to 2009