Best Time to Visit Iceland: Month by Month
September is the best all-round month, the only one with an open northern lights season, an open whale season and 13 hours of daylight together. May is the best value at 63.7 percent occupancy and the driest weather. For the aurora alone, come between November and January, when the nights run to 19 hours.
The short answer, by what you want
| If you want | Go in | Why |
|---|---|---|
| The best all-round trip | September | Aurora season opens 1 September, whales still running, 13h 08m of daylight |
| Northern lights | November to January | The peak of the 1 September to 15 April season, up to 19 hours of dark |
| Aurora plus a usable day | October or March | Dark nights with 10 to 12 hours of daylight either side |
| The lowest prices | February, April, May or October | The four months operators name as cheapest |
| An empty country | January, or 1 to 18 December | 46.9 and 45.3 percent hotel occupancy, the two lowest of the year |
| Puffins | May to mid-August | Published colony season 20 April to 20 August |
| Whales | June to August | Peak of the April to October season |
| Natural ice caves | December to February | Peak of the November to March Vatnajokull season |
| The driest weather | May | Around 10 wet days, the fewest of the year |
| The highlands and F-roads | July and August | F-roads open between early June and early July and close from mid-September |
Iceland month by month, compared
Reykjavik daylight and temperature against the two numbers most guides do not publish: how many people actually came, and how full the hotels actually were. Both are official 2025 figures.
| Month | High / low | Daylight, mid-month | Visitors (2025) | Occupancy |
|---|---|---|---|---|
| January | 3.4C / -2.2C | 5h 34m | 121,590 | 46.9% |
| February | 3.4C / -2.4C | 8h 44m | 148,657 | 62.8% |
| March | 4.2C / -1.8C | 11h 47m | 152,485 | 62.4% |
| April | 7C / 0.8C | 15h 11m | 149,123 | 56.6% |
| May | 10.1C / 3.8C | 18h 32m | 159,571 | 63.7% |
| June | See section | Near round-the-clock | 233,802 | 79.7% |
| July | See section | Near round-the-clock | 302,057 | 87.8% |
| August | 14.2C / 8.6C | 16h 31m | 312,964 | 89.8% |
| September | 11.5C / 6C | 13h 08m | 224,182 | 81.6% |
| October | 7.7C / 2.3C | 9h 55m | 201,422 | 72.5% |
| November | 4.9C / -0.5C | 6h 38m | 141,769 | 57% |
| December | 3.6C / -2C | 4h 23m | 120,016 | 45.3% |
Visitors are departing passengers through Keflavik International Airport for the full year 2025, published by the Icelandic Tourist Board, total 2,267,638. Roughly 99 percent of visitors arrive and leave through Keflavik, so this is the closest thing to a true monthly visitor count. Occupancy is Statistics Iceland table SAM01104, hotel rooms, whole of Iceland, 2025. August is 2.6 times busier than December. Reykjavik temperatures from climatestotravel.com and daylight from worlddata.info, cross-checked against Icelandic operator daylight tables. June and July have no dedicated page in this set yet, so their rows link to the sections below.
Iceland’s three seasons, in plain terms
Peak is late June, July and August, with September behaving as peak-lite at 81.6 percent occupancy. Everything is open, the F-roads are passable, the boats are running and summer Reykjavik hotel rates run roughly 25 to 35 percent above shoulder season. August 2025 was the biggest month Iceland has recorded, at 312,964 Keflavik departures.
Shoulder is May, September, October and late April. This is where the value is, because you keep most of the access and lose most of the crowd. May and October in particular give you long enough days to do a lot at occupancy in the 60s and low 70s.
Low is November, January, February, March, early December and much of April. The days are short, the weather cancels tours, and the prices reflect it. This is also when the aurora and the natural ice caves exist at all, which is why low season in Iceland is not a consolation prize the way it is elsewhere.
One warning about December, because most guides get it wrong. The occupancy data says December is the emptiest month of the year at 45.3 percent, and that is true as a monthly average. But roughly 20 December to 2 January prices at peak summer levels or above, while the three weeks before it are genuinely dead. So December is cheap only if you avoid the festive fortnight. For the cheapest month overall, take February, April, May or October. For the emptiest, take January or the first half of December.
Blue Lagoon and the Reykjanes eruptions: current position
The Blue Lagoon is open and there is no active eruption. The eruption that started on 16 July 2025 ended on 5 August 2025, and it was the twelfth on the Reykjanes peninsula since March 2021. Magma continues to accumulate at Svartsengi and further eruptions are considered likely. The closures since 2023 have been precautionary and short rather than long shutdowns, and they have not affected Reykjavik, the Golden Circle or the South Coast. Check the operator’s own status page before you travel, and pick a booking with free cancellation.
Iceland month by month
Each month below has its own page with a full weather table, the events calendar, what is closed and a top ten ranked for that month specifically rather than for the year.
Iceland in January
Low season, the emptiest month once the festive fortnight ends
The emptiest month in practice, once the New Year crowd leaves on 2 January. Occupancy is 46.9 percent, the aurora peak runs to the end of the month and the ice caves are at their best. Daylight climbs quickly from about 4 and a half hours to about 7 across January.
Iceland in February
Low season, and one of the four cheapest months
The best value winter month. Operators name February among the four cheapest, the aurora season has two and a half months left, and the ice caves are still at their peak. It is the coldest month on average at 3.4C and -2.4C, and it gains three hours of daylight from about 7 to about 10.
Iceland in March
Low to shoulder season, the last full aurora month
The best-balanced winter month and the last full aurora month. Daylight reaches 11 hours 47 minutes mid-month while the northern lights season runs to 15 April and the natural ice caves run to the end of March. Occupancy is 62.4 percent. Easter falls 25 to 29 March 2027.
Iceland in April
Shoulder season, and one of the four cheapest months
The changeover month and one of the four cheapest. Aurora runs until 15 April, puffins return from 20 April and whale watching reopens. Daylight jumps from about 13 and a half hours to about 17, occupancy is only 56.6 percent, and it is the second driest month of the year.
Iceland in May
Shoulder season, the driest month and one of the four cheapest
The driest month and arguably the best value of the year. Around 10 wet days, 18 hours 32 minutes of daylight mid-month, settled puffin colonies and whale watching, at 63.7 percent occupancy against August’s 89.8. The northern lights are impossible and the highland F-roads are still shut.
Iceland in June
Peak season begins, midnight sun
The midnight sun month and the start of true peak season. Occupancy jumps to 79.7 percent and Keflavik departures to 233,802. The highland F-roads finally open through June: on 2026 actual dates F35 Kjolur opened between 1 and 6 June and F208 between 2 and 25 June. There is effectively no darkness.
June does not have its own page yet. The nearest guides are Iceland in May and Iceland in August.
Iceland in July
Peak season, still near round-the-clock light
One of the two warmest months and the second busiest, at 302,057 Keflavik departures and 87.8 percent occupancy. Every road is open, including the last of the F-roads: on 2026 actual dates F261 opened on 5 July and F26 Sprengisandur on 6 July. Expect summer rates roughly 25 to 35 percent above shoulder season.
July does not have its own page yet. The nearest guides are Iceland in May and Iceland in August.
Iceland in August
Peak season
The busiest month Iceland has recorded, at 312,964 Keflavik departures in 2025 and 89.8 percent hotel occupancy. Everything is open: puffins until about 20 August, peak whale watching, open F-roads and 16 hours 31 minutes of daylight. In 2026 a total solar eclipse crosses Reykjavik on 12 August.
Iceland in September
Shoulder season, but still close to peak
The overlap month and, for many trips, the best of the year. The aurora season opens on 1 September while whale watching still runs and mid-month daylight is 13 hours 8 minutes. Occupancy eases to 81.6 percent from August’s 89.8. The puffins have gone and the F-roads start closing.
Iceland in October
Shoulder season, one of the four cheapest months
The value pick. October combines a full northern lights season with shoulder prices: occupancy falls to 72.5 percent and operators list it among the four cheapest months. Daylight drops from about 11 hours to about 8 across the month, and the whale watching RIBs stop on 31 October.
Iceland in November
Low season, peak aurora
Peak aurora, low prices, very little daylight. November sits in the November to January northern lights peak, occupancy falls to 57.0 percent, and the natural ice cave season opens. Daylight drops from about 8 hours to about 5 across the month. Iceland Airwaves runs 5 to 7 November.
Iceland in December
Low season for three weeks, peak season for the last twelve days
The darkest month, with 4 hours 23 minutes of daylight mid-month and 4 hours 7 minutes at the 21 December solstice. Occupancy is the year’s lowest at 45.3 percent, but the month is bimodal: 20 December to 2 January prices like high summer. Yule Lads from 12 December, citizen-run New Year.
How this guide is put together
Visitor numbers are Icelandic Tourist Board departure counts through Keflavik for the full year 2025. Hotel occupancy is Statistics Iceland table SAM01104. Daylight is from worlddata.info, cross-checked against Icelandic operator daylight tables. Reykjavik climate is from climatestotravel.com, and we publish wet days rather than millimetres because published Reykjavik rainfall totals differ materially between sources.
Tour seasons come from published operator seasons rather than from live booking calendars, because availability calendars reflect rolling booking windows rather than seasons. Every tour price, rating, review count, title and duration on the month pages was verified one by one against the live GetYourGuide listing on 28 July 2026. We do not publish a date, a price or a season we cannot source, and where we do not sell something, such as a natural ice cave tour, we say so rather than implying otherwise.
We earn a commission if you book through the links on these pages, at no extra cost to you. It does not change the rankings.
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