Iceland month by month.
| Month | What it is like | Best for |
|---|---|---|
| January | Deep winter, with about four to five hours of daylight in Reykjavík and temperatures around freezing. Long nights for the northern lights, ice caves open in Vatnajökull, and the Þorrablót season of midwinter feasts begins late in the month. One of the two quietest months of the year. | Northern lights, ice caves, a quiet country |
| February | Still winter, with six to eight hours of daylight and frequent snow and wind. The Winter Lights Festival brightens Reykjavík early in the month, the ice caves remain open, and heli-skiing begins in the north at its end. | Northern lights, ice caves, winter festivals |
| March | The days lengthen quickly to ten to thirteen hours, and the aurora is often strong around the equinox. Snow is still common and the highlands are closed, but the ice caves and the heli-skiing season are both open. | Northern lights with longer days, heli-skiing |
| April | The thaw begins, with thirteen to fifteen hours of daylight and temperatures from about 0 to 7°C. The northern lights fade by the middle of the month, and the first puffins arrive at its end. | Spring light, the last aurora, heli-skiing |
| May | Long days of sixteen to almost twenty hours, puffins on the cliffs, and minke and humpback whales arriving at Húsavík. The highland roads are still closed, and the country is quieter than in summer. | Whales, puffins, spring heli-skiing |
| June | The midnight sun, with only about three hours of sun below the horizon near the solstice. The first highland roads open, blue whales are most likely late in the month, and Iceland celebrates Independence Day on 17 June. | The midnight sun, whales, the first highland trips |
| July | The warmest month, around 8 to 15°C, with eighteen to twenty hours of daylight. All the highland roads are open, the Laugavegur trail is busy with walkers, and it is the second-busiest month of the year. | The highlands, hiking, salmon fishing |
| August | The busiest month, with long days that shorten through it and the first northern lights in its second half. Reykjavík holds Pride early in the month and Culture Night later, and whale watching is among the most reliable of the year. | Whales, the highlands, festivals |
| September | Autumn colour, eleven to fourteen hours of daylight, and the return of the northern lights, often strong around the equinox. Whales are still plentiful, and the highland roads close from the middle of the month. | Northern lights and long days together |
| October | Days shorten to about eight hours and temperatures fall to between 2 and 7°C. Most highland roads are closed, the aurora is frequent on clear nights, and the summer crowds have gone. | Northern lights, quiet landscapes |
| November | Rain, sleet and the first snow, with five to eight hours of daylight. The ice-cave season opens in Vatnajökull and Reykjavík hosts the Iceland Airwaves music festival. | Ice caves, northern lights, music |
| December | The darkest month, with just over four hours of daylight at the solstice. The Yule Lads arrive from 12 December, Christmas is celebrated on the 24th, and Reykjavík welcomes the New Year with fireworks at midnight. Together with January, the quietest month of the year. | Christmas and New Year, the northern lights |
Iceland’s two seasons: light and dark.
What changes most in Iceland through the year is the light. In Reykjavík, December has just over four hours of daylight; around the June solstice the sun is below the horizon for only about three hours, and from mid-May to mid-July it never grows fully dark.
Summer is the season for the highlands, hiking, whales and puffins, and it is when most visitors come. Winter is the season for the northern lights, the ice caves and snow-covered landscapes, with the country at its quietest. Spring and autumn sit between them, and many travellers who know Iceland well prefer them.
Daylight, month by month.
Approximate daylight in Reykjavík, which shapes every plan:
- January: four to five hours. February: six to eight.
- March: ten to thirteen. April: thirteen to fifteen.
- May: sixteen to almost twenty. June: near-continuous light, with about three hours of sun below the horizon at the solstice.
- July: eighteen to twenty. August: about eighteen, falling to fourteen and a half.
- September: about fourteen, falling to eleven. October: eleven, falling to eight.
- November: eight, falling to five. December: just over four at the solstice, with sunrise around 11:20 and sunset around 15:30.
When can you see the northern lights in Iceland?
The northern lights season runs from September to April, and the lights can appear from the second half of August. From May to July the nights are too bright to see them. The aurora is often stronger around the equinoxes, in September and March.
Darkness and a clear sky matter as much as the date. The lights are never guaranteed, so a journey built around them allows several nights in the countryside, away from city lights, with a guide who follows the cloud forecast to find a clear sky.
Giving yourself the best chance of the aurora.
Plan several nights in the countryside rather than one, since cloud is the aurora’s greatest enemy. Stay away from the lights of Reykjavík, at a lodge with clear northern views or its own observatory, such as Hotel Rangá, and travel with a guide who follows the cloud forecast each evening and moves to wherever the sky is clear.
The midnight sun.
From mid-May to mid-July, Iceland has no true darkness. In Reykjavík the sun dips below the horizon for a few hours around midnight at the solstice, leaving a long twilight; on Grímsey, on the Arctic Circle, it barely sets at all from early June to early July.
These are the weeks for long days of walking, late dinners in daylight, and the summer solstice, which Iceland marks with festivals, including one on Grímsey itself.
When are the ice caves open?
The natural ice caves inside Vatnajökull, Iceland’s largest glacier, are visited from November, usually into March. They can be entered only with a qualified glacier guide, and a warm or rainy spell can close a cave without notice, so a journey built around them keeps a day in reserve.
When to see whales and puffins.
Whale watching runs from spring to autumn. At Húsavík in the north, minke whales arrive in May and humpbacks later that month; blue whales are most likely in late June, and August and September remain among the most reliable months.
Puffins arrive in late April or early May and are seen best from May to mid-August. Their young leave in late August, and almost all are gone by early October.
The highlands and the mountain roads.
Iceland’s interior is reached only on the mountain roads, the F-roads, which open between late May and mid-July as the snow clears and usually close again from mid-September. Over recent years, the road to Landmannalaugar has opened on average in early June, Kjölur in early June, Lakagígar around 20 June, and Sprengisandur, across the centre of the country, in early July, though it has opened as early as 21 June and as late as 13 July.
The Laugavegur trail, Iceland’s most famous walk, is open in summer only, from about late June to mid-September. A private super-jeep or a helicopter makes the highlands possible for travellers who would rather not drive them.
Heli-skiing and salmon fishing.
Heli-skiing on the Troll Peninsula in the north runs from about the end of February to early June, as operators report, in the long spring light.
Salmon fishing is permitted for at most 105 days within the window of 20 May to 30 September, with each river setting its own season.
Spring and autumn: the shoulder seasons.
May is long-lit and quieter than summer: puffins are on the cliffs, minke and humpback whales arrive in the north, and the heli-ski season is still running, though the highland roads remain closed.
September is, for many, the finest month of all. The northern lights return, the days are still long, whales are plentiful, and the highland roads stay open until about the middle of the month. October is quieter still, with frequent aurora on clear nights.
Driving in Iceland, season by season.
The tourist board describes May as a good month for driving, with the main roads open, and August as generally favourable, before the highland roads begin to close in September. From November the roads can be icy and the winds strong, which is why winter journeys are usually made with a private driver-guide and super-jeep, or by helicopter between regions.
Christmas and New Year in Iceland.
Iceland celebrates Christmas on the evening of 24 December. Before it, the thirteen Yule Lads of Icelandic folklore arrive one each night from 12 December, and the last leaves on 6 January. Reykjavík welcomes the New Year with fireworks across the city at midnight.
December is one of the two quietest months for visitors, and the long nights give the most hours of darkness for the northern lights, between snow-covered landscapes and short, low-sun days.
The busiest and quietest months.
Iceland is busiest in summer. In 2025, the busiest months for foreign visitors leaving through Keflavík were August (about 313,000), July (about 302,000), June (about 234,000) and September (about 224,000). The quietest were December and January (about 120,000 each) and November (about 142,000). The same pattern has held every year since 2017.
The quiet months are when the northern lights and the ice caves are at their best, which is why winter suits travellers who want the country to themselves.
A first visit and a return visit.
For a first visit, September or the summer months give the most of Iceland at once: long days, open roads, whales, and, from late August, the chance of the northern lights.
For a return visit, winter shows a different country: the aurora, the ice caves inside Vatnajökull and snow over the lava fields, with the fewest visitors of the year. Spring, from March to May, is the season for heli-skiing in the north.
How far ahead to book.
For summer, the tourist board advises booking six to eight months ahead, since accommodation, vehicles and tours often sell out months in advance. Iceland’s finest hotels are small, so their best rooms go early in every season.
An advisor reserves early for summer and for the northern-lights lodges, and knows what can still be secured at shorter notice.
The weather to plan around.
Iceland is milder than its name suggests and changeable in every season. In Reykjavík, winter days hover around freezing, typically from about −1 to 4°C, with snow, rain and strong wind common; July, the warmest month, ranges from about 8 to 15°C.
Winter roads can be icy and windy, so many travellers explore with a private guide and super-jeep rather than drive themselves. Layers, a waterproof shell and proper boots are needed all year.
Festivals and events.
Some of the year’s events are worth planning around:
- January to February: the Þorrablót season of midwinter feasts, which begins on Bóndadagur in late January.
- February: the Winter Lights Festival in Reykjavík.
- 17 June: Independence Day, with the summer solstice later that week.
- August: Reykjavík Pride early in the month and Culture Night later in it.
- November: the Iceland Airwaves music festival.
- December: the Yule Lads, who arrive one each night from 12 December, Christmas on 24 December, and fireworks over Reykjavík at midnight on New Year’s Eve.
The best months, by what you want to do.
Choose the month by the journey you have in mind:
- The northern lights: September to March, strongest around the equinoxes.
- Ice caves in Vatnajökull: November to March.
- Whales: May to September, with blue whales most likely in late June.
- Puffins: May to mid-August.
- The highlands and the Laugavegur trail: late June to early September.
- Heli-skiing on the Troll Peninsula: March to May.
- Salmon fishing: from late May to the end of September, by river.
- The quietest Iceland: November to January.
Your questions.
What is the best month to visit Iceland?
For the northern lights with comfortable roads, September or March. For the midnight sun, whales and the highlands, July. For ice caves and a quiet country, January or February.
When is the best time to see the northern lights in Iceland?
From September to March, on dark and clear nights, with the aurora often stronger around the equinoxes. It cannot be seen from May to July, when the nights are too bright.
When are the ice caves open?
From November, usually into March, with a qualified glacier guide only. Warm or rainy weather can close a cave at short notice.
When is Iceland least crowded?
December and January, followed by November. August and July are the busiest months.
Is it worth visiting Iceland in winter?
Yes, for the northern lights, the ice caves and a quiet country under snow. Days are short and roads icy, so a private guide and super-jeep are the comfortable way to explore.
How many hours of daylight does Iceland have in winter?
About four to five hours in Reykjavík in December and January, rising to six to eight in February and ten to thirteen in March.
When is the midnight sun in Iceland?
From mid-May to mid-July it never grows fully dark. Around the June solstice the sun is below the horizon in Reykjavík for only about three hours.
When can you see puffins in Iceland?
From May to mid-August; they arrive in late April or early May and leave by early October.
Tell us when you would like to see Iceland.
Recommendations chosen for you, an itinerary crafted around them, and every booking managed by an independent Ultra Advisor who works with local specialists in Iceland.