By Chris Ayliffe
Ask ten people when the best time to visit Iceland is and you’ll get ten different answers, usually delivered with total confidence (and sometimes an element of BS). Summer people will tell you about the midnight sun, winter people will tell you about the northern lights, and someone will inevitably say ‘September’ or ‘March’ with the knowing look of a person who has worked out a secret.
The truth is that there isn’t one best month, there’s a best month for you. It depends on whether you’re chasing the aurora, long hiking days, quieter roads or a bit more value for money, and every month trades one of those off against another.
So, rather than just giving you opinions (although I have plenty of those), this guide leans on the numbers: long-term climate averages from the Icelandic Met Office for Reykjavík, daylight hours through the year, and visitor figures from the Icelandic Tourist Board. Then I’ll tell you what those numbers actually feel like when you’re here so you can debate with your significant other about when the real best time to visit is.
When Is the Best Time to Visit Iceland?
If you want the short version, here it is:
- For the northern lights: September to March, with the darker months giving you the most hours of night sky. I personally recommend the bookend of September and March as there is a lesser-known Russell McPherron effect that increases the likelihood of high intensity auroras.
- For mild weather and long days: June to August, when average highs sit in the low to mid teens and it barely gets dark at all.
- For fewer crowds and better value: the shoulder season months, particularly April to May and October to early November.
- For a bit of everything: September, which offers autumn colour, the first aurora nights of the season (for normal sleepers), and noticeably quieter roads than August.
Iceland is very much a year-round destination now, and there’s no genuinely ‘bad’ month to come. There are just months that suit some trips better than others, and the rest of this guide is about working out which one suits yours.
Iceland by Month: Weather, Daylight, Rainfall and Aurora Comparison
Here’s the whole year at a glance. Temperatures, rainfall, wet days and sunshine are Icelandic Met Office averages for Reykjavík (1991–2020), daylight is an approximate figure for the middle of each month, and crowd levels are based on monthly foreign visitor departures recorded by the Icelandic Tourist Board (I promise you I’m not autistic, and yes this was a hassle to find).
| Month | Avg high / low (°C) | Daylight (approx. hrs) | Rainfall (mm) | Wet days | Sunshine (hrs) | Northern lights | Crowds |
|---|---|---|---|---|---|---|---|
| January | 3.2 / −1.7 | 5 | 87 | 15 | 23 | Excellent | Low |
| February | 3.3 / −1.9 | 8 | 91 | 15 | 62 | Excellent | Low |
| March | 4.2 / −1.3 | 11.5 | 81 | 14 | 110 | Very good | Moderate |
| April | 6.9 / 1.0 | 14.5 | 59 | 12 | 165 | Early April only | Moderate |
| May | 10.1 / 4.0 | 18 | 53 | 11 | 209 | None | Moderate |
| June | 13.0 / 7.2 | 21 | 43 | 9 | 190 | None | High |
| July | 14.9 / 9.1 | 19.5 | 50 | 10 | 183 | None | Peak |
| August | 14.1 / 8.6 | 16 | 65 | 12 | 165 | Late August | Peak |
| September | 11.4 / 6.2 | 12.5 | 87 | 15 | 118 | Very good | Moderate |
| October | 7.6 / 2.7 | 9.5 | 80 | 13 | 92 | Excellent | Moderate |
| November | 4.7 / −0.1 | 6 | 87 | 14 | 40 | Excellent | Low |
| December | 3.3 / −1.6 | 4 | 95 | 15 | 13 | Excellent | Low |
A few things jump out straight away. The temperature range across the whole year is surprisingly narrow, with only about 12°C separating the average high in January from the average high in July. Rainfall is lowest from April to August and highest from September to February. And daylight swings wildly, from around four hours in December to around 21 around the June solstice, which, more than anything else, is what shapes the Iceland experience month to month.
I guess what I’m saying is…it’s not that cold!
January to March: Winter, Northern Lights and Growing Daylight
The start of the year is Iceland at its most wintry, and for a lot of people, that’s exactly the point. Average highs in Reykjavík hover around 3°C, which is milder than many expect due to the jet stream impact, but wind and snow are regular visitors and the biggest storms tend to peak in January and February.
The real story of these months is the light (what we all brace ourselves for every winter). January starts with only around five hours of daylight, and much of it is soft, low and golden, which photographers adore. By March, that has more than doubled to over 11 hours, so you get long, dark nights for the aurora while still having plenty of daytime for exploring.
It’s also one of the quietest periods of the year. January typically sees roughly 120,000 foreign visitors depart through Keflavík, less than half of the August peak, so popular stops feel far more peaceful and getting through airport security is a much more relaxing situation. Snow-covered waterfalls, natural ice caves, and general frozen landscapes are all at their best, too.
The trade-off is flexibility. Many roads can close, and depending on your plans, you might well need a 4×4 to get off the main routes, and it pays to leave some breathing room in your plans. March is a particularly smart pick, as it balances strong Northern Lights chances and wintry viewing with far more daylight than December (bundle up though).
April to May: Fewer Crowds and Rapidly Lengthening Days
Spring in Iceland is a bit of a sprint. The daylight arrives astonishingly quickly, jumping from roughly 14.5 hours in mid-April to around 18 hours by mid-May. It’s like someone has grabbed the dimmer switch and cranked it all the way up. I assume this also correlates to an extra cup of coffee, or if you’re a member of Gen Z and below, perhaps a morning Nocco to ruin your teeth with.
The data backs up the idea that spring is a good bet for drier weather, too. April and May average around 59 mm and 53 mm of rainfall respectively in Reykjavík, compared with around 90 mm in the depths of winter, and May is also the sunniest month of the year (or so my lady whose birthday is in this month claims), averaging over 200 hours of sunshine.
Temperatures are still cool, climbing from average highs of around 7°C in April to 10°C in May, and snow can still turn up (spring in Iceland likes a false start just like my old Audi A3). Some highland roads remain closed well into summer, so this isn’t the time for the interior.
The upside is that the summer rush hasn’t hit yet. Around 163,000 foreign visitors departed in May this year, roughly half the August figure, which means quieter roads, easier bookings and often better value (assuming the locals can follow basic economics). Early April can still offer the odd bright dancing night, while by late May the nights are already glowing with that early midnight sun tinge late into the evening.
June to August: Midnight Sun, Milder Weather and Peak Season
Summer is Iceland’s main draw, and the numbers explain why. This is the warmest stretch of the year, with July averaging highs of around 15°C (frequently more for some unknown reason in the Northeast of Iceland), and it’s also the driest, with June seeing the lowest rainfall of any month at around 43 mm and only nine wet days on average (praise whichever deity gave us this small mercy!).
Then there’s the light situation. Around the June solstice, Reykjavík enjoys roughly 21 hours of daylight, and the remaining ‘night’ is really just an extended twilight. You can comfortably hike at 11pm, catch sunsets that roll straight into sunrise and generally forget what a bedtime is (I speak from years of experience).
Summer also opens up the parts of Iceland that are off-limits the rest of the year. The highland roads typically open from late June or early July, which is your window for places like Landmannalaugar and the interior.
The catch is that everyone else knows this too. July and August are the busiest months by a distance, and August 2025 set an all-time monthly record with around 313,000 foreign visitors departing through Keflavík. During this time you should expect busier hotspots, higher prices and the need to book well ahead (especially accommodation and car rentals).
As a small consolation prize, by late August the nights are dark enough for the first northern lights of the new season, if you can muster the strength to stay up in the earliest of hours.
September to October: Autumn Colours and Northern Lights
If I had to pick one ‘insider’ month, it would probably be September. The summer crowds thin out noticeably once the school holidays end (suckers), the landscape turns rust, gold and deep red, and the nights are finally dark enough for regular Northern Lights sightings, even from my home in downtown Reykjavík.
The numbers show the shift clearly. Daylight drops from around 12.5 hours in mid-September to 9.5 in mid-October, giving you a very healthy balance of time to explore and time to watch the sky. Temperatures are still reasonably mild too, with September averaging highs around 11°C and October around 8°C.
There’s also a bit of science on your side. Geomagnetic activity tends to be slightly higher around the equinoxes in late September and late March, so autumn often delivers some of the most active Northern Lights displays of the year (but this, of course, can vary wildly).
The main trade-off is the amount of rain. September and October are among the wetter months, averaging around 80 to 87 mm in Reykjavík, and the first proper autumn storms usually arrive in October. So, pack good waterproofs and you’ll be more than rewarded.
November to December: Dark Skies and Icelandic Winter
The end of the year is when Iceland leans fully into the dark. Daylight falls to around six hours in mid-November and bottoms out at roughly four hours around the December solstice (imagine driving in and out of your office in that…), with the sun barely clearing the horizon before it starts to set again.
That sounds bleak on paper, but it’s one of the most atmospheric times to be here. The long nights give you more hours for aurora hunting than any other part of the year, the low sun turns the few daylight hours into one long golden hour, and December brings candlelit windows, Christmas markets and lights, and the famously mischievous Yule Lads.
It is also the wettest and dullest stretch statistically. December averages around 95 mm of rainfall in Reykjavík, the most of any month, with just 13 hours of sunshine across the entire month. Snow and storms are regrettably common, so a 4×4 and a flexible plan are largely advisable unless for some reason you just came to see the capital (don’t do that).
Visitor numbers are at their lowest, with December bringing roughly 120,000 foreign visitors, apart from a noticeable spike around Christmas and New Year, when Reykjavík’s bonkers fireworks displays draw a crowd. Outside those dates, it’s a wonderfully quiet time to experience the countryside.
Best Time to Visit Iceland for the Northern Lights
Within the season, three things decide your chances: darkness, clear skies and solar activity.
Darkness is easy to predict, and December and January offer the most hours of it. Clear skies are the tricky part, and the data shows that no winter month is especially dry, so the best strategy is to stay several nights and give yourself multiple chances (at least a week). Solar activity is the wildcard, although the equinox months of September to October and March often punch above their weight. Sadly, I haven’t worked out how to summon the Sun’s energy for guests coming but I’m still working on it.
Putting that together:
- Most hours of darkness: November to January
- Best balance of darkness and daylight: September to October and February to March
- Best overall bet: a stay of 5 nights or more at any point from September to March
One major tip from me (and probably anyone on Reddit): get out of the city. Light pollution makes a big difference, which is why a dark countryside location will always beat a street-lit hotel room. At the Panorama Glass Lodges we deliberately keep outdoor lighting to a minimum, so on a clear night the aurora can appear straight above, and sometimes, around your bed.
Best Time to Visit Iceland for Weather and Daylight
If comfortable conditions and time to explore are your priorities, the numbers point firmly to late May through August.
June is the standout on paper as the antithesis of December. It’s the driest month of the year, with highs around 13°C and roughly 21 hours of daylight. July and August are slightly warmer, but August starts to get wetter again (only the Brits are really used to this).
May deserves more credit than it gets, though. It is the sunniest month in Reykjavík, the second driest, and comes before the peak summer crowds so you can save a few krona here and there. It’s a touch cooler, so pack an extra layer, but you’ll get long, bright days for a lot less competition.
Of course, ‘good weather’ in Iceland is relative (or often simply sarcastic). Even in midsummer, wind and rain (and sometimes snow) can appear without warning, so layers and waterproofs are a must whatever month you choose.
Best Time to Visit Iceland for Fewer Crowds and Better Value
Iceland welcomes around 2.3 million foreign visitors a year, but they certainly don’t arrive evenly. Visitor numbers in the peak months of July and August are roughly two and a half times those of January and December, and prices for flights, car hire and accommodation tend to follow the same curve (blame Adam Smith and his Invisible Hand theory for that).
That makes the shoulder seasons the sweet spot for value. April and May offer long days, dry(er) weather without the summer rush, while October and early November combine strong aurora chances with noticeably quieter roads and more availability.
The deepest winter months of January and December (outside the festive holidays) are the quietest of all. If you’re comfortable driving in winter conditions, or happy to spend your days slowly rather than racing between sights, they can be brilliant value and wonderfully peaceful.
Whenever you travel, booking early is the simplest way to save (being a pesky planner pays off). Unique stays and good rental cars both get snapped up quickly, particularly around the solstice, the festive period, and the peak of aurora season.
Choosing the Best Month for Your Iceland Trip
So, in summary, which month should you pick? Start with the one thing you’d be most disappointed to miss, and work backwards from there.
- Northern lights top of the list? Come between September and March, and stay somewhere dark for at least three nights.
- Want the midnight sun and hiking weather? Aim for June to August, and book early.
- Looking for quieter roads and better value? Try April, May, October or early November.
- Can’t decide? September gives you a little of everything: autumn colour, mild-ish weather, decent daylight and the first aurora show of the season.
Whichever month you choose, where you sleep can change the whole experience. At the Panorama Glass Lodge, the glass walls and roof above your bed means the season comes to you. In winter, you can watch the northern lights dance overhead without leaving the warmth of the covers. Whilst in summer, the midnight sun becomes your nightlight, glowing gold and pink across the sky long after you’d normally be asleep. And in between, you get front-row seats to autumn colours, spring snow flurries and everything else Iceland’s famously changeable skies decide to throw at you (and they will).
Our South Iceland lodges near Hella look out over the river towards Hekla and the highlands, while our West Iceland lodges near Akranes face the ocean and the Snæfellsnes mountains. Both have private hot tubs, skies free of light pollution, and make any month of the year feel like the right one.
In the end, the data can tell you when Iceland is warmest, darkest, driest or quietest. It can’t tell you which moment will stay with you most. That part, I’m afraid, you’ll just have to come and find out for yourself.