Weather in Iceland varies a lot in the various parts of the island. In the southern part, there may be sunshine and relatively warm but at the same time it can be windy, cold and even snow in the northern and/or eastern parts. It is also important to realize and remember that weather in Iceland can change unexpectedly and very fast. It is therefore important to check the weather forecast and be prepared for all types of weather.

The Icelandic climate is more temperate than one should expect considering the latitude of the island but it is not so far away from the Arctic Circle. This relatively mild weather, considering the latitude, is due to the North Atlantic Current, which carries warm sea from the equator to the waters around Iceland. Most of the inhabitants live close to the ocean so the weather in the towns is warmer than inland where few people live. The highlands are uninhabited but are popular tourist destination during the summer months. The weather in the highlands can be very different from close to the coast and snowfall often occurs during the summer months. Fierce winds and heavy rain is also to be expected there during the summer.

Below is a summary about the average weather in Reykjavík, the capital. It is sorted by months. But remember that the weather may vary a lot from the average and that you can even experience snowfall in the summer months! You should also remember that this is the average for Reykjavík and that the weather can vary a lot from one location to another. It is usually a bit warmer in Reykjavík and other locations in the southern part than in other parts of the island.

Spring

Weather in March

In March, the average temperature is 0.5 degrees Celsius. The average sunshine is 111 hours and the average precipitation is 82 mm.

Weather in April

In April, the average temperature is 2.9 degrees Celsius. The average sunshine is 140 hours and the average precipitation is 58 mm.

Weather in May

In May, the average temperature is 6.3 degrees Celsius. The average sunshine is 192 hours and the average precipitation is 44 mm.

 

Summer

Weather in June

In June, the average temperature is 9 degrees Celsius. The average sunshine is 161 hours and the average precipitation is 50 mm.

Weather in July

In July, the average temperature is 10.6 degrees Celsius. The average sunshine is 171 hours and the average precipitation is 52 mm.

Weather in August

In August, the average temperature is 10.3 degrees Celsius. The average sunshine is 155 hours and the average precipitation is 62 mm.

 

Autumn/Fall

Weather in September

In September, the average temperature is 7.4 degrees Celsius. The average sunshine is 125 hours and the average precipitation is 67 mm.

Weather in October

In October, the average temperature is 4.4 degrees Celsius. The average sunshine is 83 hours and the average precipitation is 86 mm.

Weather in November

In November, the average temperature is 1.1 degrees Celsius. The average sunshine is 39 hours and the average precipitation is 73 mm.

 

Winter

Weather in December

In December, the average temperature is -0.2 degrees Celsius. The average sunshine is 12 hours and the average precipitation is 79 mm.

Weather in January

In January, the average temperature is -0.5 degrees Celsius. The average sunshine is 27 hours and the average precipitation is 76 mm.

Weather in February

In February, the average temperature is 0.4 degrees Celsius. The average sunshine is 52 hours and the average precipitation is 72 mm.