May marks the proper arrival of spring in Iceland, offering visitors some of the most pleasant weather conditions of the year. After the harsh winter months, May brings genuine warmth and the promise ...
Weather & Climate
May marks the proper arrival of spring in Iceland, offering visitors some of the most pleasant weather conditions of the year. After the harsh winter months, May brings genuine warmth and the promise of the approaching summer season.
Average temperatures in Reykjavík during May range from 6°C to 11°C, making it considerably more comfortable than the preceding months. The capital experiences approximately 8-12 rainy days throughout May, with total precipitation averaging 42mm. Whilst rain is still frequent, it tends to be lighter and less persistent than in winter months.
In the northern regions, including Akureyri and the Westfjords, temperatures are slightly cooler, typically ranging from 4°C to 9°C. The East Fjords see similar conditions, though areas like Egilsstaðir may experience slightly milder weather due to geographical protection from prevailing winds.
Snow becomes increasingly rare in May, particularly in lower elevations and coastal areas. However, visitors should still expect snow in highland regions and mountain passes. The Westman Islands (Vestmannaeyjar) enjoy some of Iceland's mildest May weather, with temperatures often reaching 12-13°C on pleasant days.
Wind speeds generally decrease from winter levels, though coastal areas like Vík and the Reykjanes Peninsula can still experience gusts of 15-20 mph. The weather remains characteristically changeable, with conditions potentially shifting from sunshine to rain within hours.
Daylight & Light Conditions
May offers increasingly spectacular light conditions as Iceland transitions towards the endless days of summer. At the beginning of May, sunrise in Reykjavík occurs around 05:45, with sunset at approximately 21:30, providing over 15 hours of daylight. By month's end, sunrise occurs around 04:30, with sunset delayed until 22:45, creating nearly 18.5 hours of daylight.
Northern locations experience even more dramatic changes. In Akureyri, late May sees sunrise around 03:45 and sunset near 23:30, whilst areas like Ísafjörður in the Westfjords enjoy similar extended daylight hours.
The quality of light during May is particularly remarkable for photographers and nature enthusiasts. The low angle of the sun during early morning and late evening hours creates exceptional golden hour conditions that can last for hours rather than the brief periods experienced at lower latitudes.
Aurora visibility becomes increasingly challenging as May progresses due to the extended daylight hours. Northern lights viewing is only possible during the first week of May, and even then, only in the darkest hours around midnight to 02:00. By mid-May, astronomical darkness becomes insufficient for aurora viewing, making this essentially the last opportunity until late August.
What to Do in May
**Westman Islands Ferry Adventure**
The ferry from Landeyjahöfn to Heimaey operates reliably in May's calmer seas. Explore the dramatic volcanic landscape, visit the Eldheimar Museum, and witness the incredible puffin colonies that arrive in May. The Westman Islands Golf Course offers a unique 18-hole experience with stunning ocean views.
**Highland Gateway at Landmannalaugar**
Whilst the full highland roads remain closed, enterprising visitors can access Landmannalaugar via super jeep tours from Reykjavík. The geothermal hot springs provide perfect relaxation after hiking the lower elevation trails around this geological wonderland.
**Snæfellsnes Peninsula Circuit**
Drive the complete Snæfellsnes Peninsula, visiting Kirkjufell mountain near Grundarfjörður, the dramatic sea cliffs at Arnarstapi, and the mystical Snæfellsjökull glacier. The peninsula's diverse landscapes are particularly stunning in May's clear conditions.
**East Fjords Exploration**
Navigate the winding roads to Seyðisfjörður, renowned for its colourful wooden houses and artistic community. The drive over Fjarðarheiði pass offers spectacular views, whilst the town itself hosts excellent hiking opportunities in the surrounding mountains.
**Dettifoss and Ásbyrgi Canyon**
Access the powerful Dettifoss waterfall via Route 862 from Húsavík. The nearby Ásbyrgi Canyon, shaped like a horseshoe, provides excellent hiking opportunities and serves as the northern gateway to Jökulsárgljúfur National Park.
**Lake Mývatn Geological Tour**
Explore the pseudo-craters at Skútustaðir, the bubbling mud pools at Námafjall Hverir, and the dramatic Dimmuborgir lava formations. The Mývatn Nature Baths offer a more intimate alternative to the Blue Lagoon with equally soothing geothermal waters.
**Westfjords Pioneer Trail**
Venture into Iceland's most remote region via Ísafjörður. The drive through the dramatic fjords reveals traditional fishing villages like Bolungarvík and Súðavík. Visit the Arctic Fox Centre in Súðavík to learn about Iceland's only native mammal.
**South Coast Waterfall Quest**
Combine visits to Seljalandsfoss, Gljúfrabúi, and Skógafoss waterfalls with exploration of Reynisfjara black sand beach near Vík. The basalt columns and roaring Atlantic waves create an otherworldly atmosphere.
**Reykjavík Cultural Immersion**
Explore the capital's vibrant cultural scene, including the striking Harpa Concert Hall, the historic Hallgrímskirkja church, and the fascinating National Museum of Iceland. The city's café culture thrives in May's pleasant temperatures.
**Þingvellir National Park Historical Trek**
Walk through the Almannagjá rift valley where the Icelandic parliament was founded in 930 AD. The clear waters of Silfra fissure offer world-class snorkelling opportunities for those prepared for 2-4°C water temperatures.
F-Road & Highland Access
May represents the transition period for highland access, with most F-roads remaining firmly closed to all traffic. The Icelandic Road and Coastal Administration (Vegagerðin) typically maintains closures on all major highland routes throughout May.
**Closed F-Roads in May:**
- F35 Kjölur route (remains closed until June)
- F26 Sprengisandur route (typically closed until late June)
- F208 Fjallabak route to Landmannalaugar (closed to private vehicles)
- F88 Askja route (closed until June/July)
- F910 Askja approach roads (closed)
- F225 Kaldidalur route (may open late May but unreliable)
**Limited Access Options:**
Some F-roads at lower elevations may offer partial access, but conditions change rapidly. F570 towards Þórsmörk may be accessible to experienced 4WD drivers with proper vehicles, though river crossings remain dangerous due to snowmelt.
Highland huts and mountain refuges remain largely inaccessible by private vehicle. Tour operators with specialised super jeeps can access certain areas like Landmannalaugar and lower elevations of Þórsmörk, but these require pre-booking through licensed operators.
The highland closure in May is primarily due to snow cover, unstable road surfaces from freeze-thaw cycles, and dangerous river crossings swollen with glacial melt. Attempting to access closed F-roads results in substantial fines and potential rescue costs.
Aurora Forecast
May offers extremely limited aurora viewing opportunities due to Iceland's rapidly increasing daylight hours. Aurora photography enthusiasts should focus their efforts on the first week of May, with virtually no viewing possibilities after mid-May.
**Early May (1st-7th):** Marginal aurora conditions exist between midnight and 03:00, requiring strong geomagnetic activity (KP index 4+) for visibility. Even during clear nights, the persistent twilight significantly reduces aurora intensity and visibility.
**Mid to Late May:** Aurora viewing becomes impossible due to insufficient darkness. The sun sets around 22:00 but true darkness never occurs, making aurora detection nearly impossible even during strong geomagnetic storms.
**Best Viewing Locations (Early May Only):**
- Jökulsárlón Glacier Lagoon (if weather permits travel)
- Reykjanes Peninsula lighthouse areas
- Remote areas of the Snæfellsnes Peninsula
- Northern regions around Akureyri (slight advantage due to latitude)
**Viewing Strategy:**
Focus on the first few days of May during new moon phases. Monitor space weather forecasts through the Icelandic Met Office aurora forecast. Even with optimal conditions, aurora viewing requires exceptional patience and luck during May.
For dedicated aurora photographers, consider that May represents the final opportunity until late August, making September through April the optimal aurora season in Iceland.
What to Pack
May's transitional weather demands versatile layering systems and waterproof protection for Iceland's unpredictable conditions.
**Base Layers:**
- Merino wool or synthetic base layer tops (2-3)
- Thermal leggings for highland excursions
- Moisture-wicking underwear
- Warm wool or synthetic socks (4-5 pairs)
**Insulation Layers:**
- Fleece or synthetic insulated jacket
- Lightweight down jacket for evening activities
- Wool jumper or cardigan for Reykjavík evenings
**Outer Shell:**
- Waterproof, breathable jacket (essential)
- Waterproof overtrousers
- Windproof softshell jacket for active days
**Footwear:**
- Waterproof hiking boots with good ankle support
- Microspikes or lightweight crampons for highland areas
- Comfortable walking shoes for Reykjavík
- Waterproof gaiters for wet grass and stream crossings
**Accessories:**
- Waterproof gloves plus liner gloves
- Warm wool hat covering ears
- Sun hat for bright May days
- Sunglasses (essential due to extended daylight)
- Buff or neck gaiter for wind protection
**Specialised Gear:**
- Waterproof day pack (20-30 litres)
- Headtorch with extra batteries
- Quick-dry towel for hot spring visits
- Swimwear for geothermal pools
- Camera rain cover
- Portable phone charger/power bank
The key to May packing is preparation for rapid weather changes. Temperatures can fluctuate 10°C within hours, and rain can arrive without warning.
Crowds & Prices
May offers an excellent balance between favourable weather conditions and manageable tourist numbers, making it increasingly popular among savvy travellers seeking Iceland's natural beauty without peak season crowds.
**Tourist Volume:**
May sees approximately 40% fewer visitors than peak summer months (July-August), yet 60% more than the quiet winter period. Popular attractions like Gullfoss and Geysir experience
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