Iceland in April: what tours run

April is the month when winter and summer overlap. For three weeks you can still do the northern lights and the crystal ice caves, and from the 20th the puffin boats are running out of Reykjavík. The cost is uncertainty. April weather is changeable, snow is normal in the first half, and the Highland roads stay closed until June.

What the calendars show

We hold the booking calendars for every tour we sell, so we counted. On 15 April about 1,330 of our tours show a departure. That is the busiest day of the first five months of the year, a little above mid-March at about 1,300. On 30 April it drops to about 1,260, because the winter tours stop.

That drop is the whole story of April. Northern lights tours hold at about 120 a night until the middle of the month, then fall to about 55 by the 30th. Ice cave tours go from 66 on 1 April to 59 on the 30th, and almost all of what is left by May is Katla. If winter is what you came for, come in the first half.

Northern lights: the first three weeks only

By April the nights are short. At the start of the month it is properly dark from about half past nine; by the end, hardly at all. The lights don’t stop, but the hours you can see them shrink each week.

BusTravel Iceland’s Northern Lights Bus Tour from Reykjavík is from €73 and shows its last departure on 24 April. It comes with a free retry if you see nothing, so book it for your first or second night and leave room for the second try. Our northern lights season guide explains why the moon and cloud matter more than the month.

Ice caves: last call

The natural blue caves under Vatnajökull close for the summer. Blue Iceland’s Blue Ice Cave Adventure is from €160, three hours from Jökulsárlón, and shows departures every day in April up to the 30th, then nothing until autumn. A warm spell can close a cave earlier than the calendar says. It is a five-hour drive from Reykjavík, so sleep in the southeast.

The Katla ice cave doesn’t have a season. BusTravel Iceland’s South Coast & Katla Ice Cave is from €262, eleven hours from Reykjavík, and runs every April day. It is darker and grittier than the crystal caves, streaked with volcanic ash. Our ice caves guide compares the two.

Puffins come back

Puffins return to the islands off Reykjavík in April, and the boats follow. Elding’s Classic Puffin Watching is from €63, one hour from the Old Harbour, and shows its first departure on 20 April. Early in the season there are fewer birds on the water than in June. You will usually see some. Nobody can promise you many.

Whales

Elding’s Reykjavík Classic Whale Watching is from €106, three hours, and runs every day in April. Sightings are possible all year and never certain. Spring seas are calmer than March on average, but a windy day still cancels the boat.

Glaciers and the snowcat

Everything on the ice runs. Glacier hikes on Sólheimajökull and Skaftafell, the Langjökull snowmobiles and the ice tunnel all show daily dates. On Snæfellsnes, Glacier Paradise’s Snæfellsjökull Glacier Snow-cat Tour is from €131 and shows every day in April. It is the easy way onto a glacier: three hours from Arnarstapi, no hiking required.

Daylight, roads and the First Day of Summer

Reykjavík has about thirteen hours of daylight on 1 April and more than sixteen by the 30th. That is enough for a South Coast day to Vík and back in daylight, with time to stop.

The main roads are usually clear, but April snow still closes Hellisheiði and the mountain passes in the north and east for a few hours at a time. The Highland F-roads stay shut until June, so Landmannalaugar and Þórsmörk by ordinary car are out.

Icelanders celebrate the First Day of Summer, Sumardagurinn fyrsti, on the first Thursday after 18 April. In 2027 that is 22 April. It is a public holiday, and it is often cold. Easter falls in March in 2027, so April has no Easter rush.

Our honest take

Come in the first three weeks of April if you want the lights and the crystal ice caves with long, usable days. Come in the last ten days if you would rather have puffins and give up on the aurora.

Don’t try to do both in one week around the 20th and expect both to work. Pick the side you care about, book that tour early in the trip, and keep a spare day for the weather. April gives you more choice than any other month. It does not give you any certainty.