Weather in Grindavik

The thin branches and leaves on the trees fluctuate continuously; wind extends light flag.Light and short waves are clearly visible at sea. Foam of glassy appearance. Perhaps scattered white horses.

Thin branches and tree trunks sway, and the wind is felt by the hand.The sea is rough, not very large waves are well developed in length; many white horses are formed.

Large branches of trees sway, and thin ones bend; whistling heard in telegraph wires; umbrellas used with difficulty.Large waves form on the sea; the white foam crests are more extensive everywhere.

Large branches bend on the trees, and the trunks sway; inconvenience felt when walking against the wind.Strong waves are piling up on the sea; Sea heaps up and white foam from breaking waves begins to be blown in streaks along the direction of the wind.

Slight structural damage occurs (chimney-pots and slates removed)High waves. Dense streaks of foam along the direction of the wind. Crests of waves begin to topple, tumble and roll over. Spray may affect visibility

On trees, thin and dry branches break, and large trunks sway; generally impedes progress.The sea is very strong moderately high long waves; edges of crests begin to break into spindrift. The foam is blown in well-marked streaks along the direction of the wind.

The wind picks up dust and small pieces of paper; small branches are moved.The sea is moderately rough. Waves appear in the form of elongated ridges, some of which are overturned; fairly frequent white horses.