Best Travel Time & Climate

Iceland has an oceanic climate, which is much milder than the name suggests — thanks to the Gulf Stream. However, the weather is extremely changeable. "If you don't like the weather, wait five minutes" is the Icelandic motto.

Summer: June–August (peak season)

The best travel time for most visitors:

• Temperatures: 10–15°C (can rise to 20°C), nights around 5–8°C
• Midnight Sun: Almost 24 hours of daylight — on June 21, the sun in Reykjavík practically doesn't set
• All roads open: The highland roads (F-roads) are only passable in summer (approx. June–September)
• Puffins: From May to mid-August on the cliffs
• Drawback: Highest prices, most tourists, no Northern Lights

Winter: November–February (Northern Lights season)

• Temperatures: -2 to 4°C in Reykjavík (mild thanks to the Gulf Stream), colder in the north
• Northern Lights: The main attraction! Darkness from 4 PM offers perfect conditions
• Ice Caves: The spectacular blue ice caves in Vatnajökull are only accessible from November to March
• Restrictions: Only 4–5 hours of daylight, highlands closed, some roads in the north difficult

Shoulder Season: May & September–October

The perfect compromise: Fewer tourists, lower prices, and depending on the month, both long days and Northern Lights chances. September often offers the most stable weather.

Climate Table: Reykjavík

Month	Day °C	Night °C	Sun Hours	Rainy Days	Rating
January	2	-2	1	13	⭐⭐⭐ (Northern Lights!)
February	3	-2	2	12	⭐⭐⭐ (Northern Lights!)
March	3	-1	4	13	⭐⭐⭐
April	6	1	6	10	⭐⭐⭐
May	10	4	7	9	⭐⭐⭐⭐
June	13	7	7	9	⭐⭐⭐⭐⭐
July	14	9	6	9	⭐⭐⭐⭐⭐
August	13	8	5	10	⭐⭐⭐⭐⭐
September	10	5	4	11	⭐⭐⭐⭐
October	7	2	2	12	⭐⭐⭐ (Northern Lights!)
November	4	0	1	12	⭐⭐⭐ (Northern Lights!)
December	2	-2	0	14	⭐⭐⭐ (Northern Lights!)