Iceland
Reykjavík in September
🍂 AutumnCold and often rainy.
🎒 Pack: warm jacket for evenings · compact umbrella or rain jacket
Why September scores 8.3What goes into the score
How it works- Weather comfort6.7
- !Cold (9.9°C highs / 5.8°C lows)
- ✓Comfortable humidity (dew point 5.9°C)
- !Wet: ~161 mm rain, ~6 heavy-rain days
- Air quality10.0
- ✓Good (within WHO guideline) (PM2.5 ~3 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline9.5
- ·Normal precautions
| Sep | Jul | |
|---|---|---|
| Score | 8.3 Very good | 9.0 Excellent |
| Season | 🍂 Autumn | ☀️ Summer |
| High / low | 10° / 6° | 13° / 8° |
| Rain | 161 mm | 85 mm |
| Humidity | dew pt 6° | dew pt 8° |
| PM2.5 | 3 µg/m³ | 4 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Iceland this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore ReykjavíkEvents, sights, food & souvenirs
Check event dates locallyIceland's small, colourful capital, the base for Golden Circle tours, northern lights trips, whale watching and geothermal lagoons.
No major events on our calendar for September.
Coming up later
Iceland AirwavesDate variesUsually early November
A music festival showcasing Icelandic and international new artists.
Why go: Book accommodation early.
Where: Venues across Reykjavík
New Year's EveEvery year31 December every year
Neighbourhood bonfires, then an intense private fireworks display at midnight.
Why go: Hallgrímskirkja is a popular viewing spot.
Where: Citywide
Icelandic National DayEvery year17 June every year
Parades and outdoor events mark independence in 1944.
Why go: A public holiday with family events across the centre.
Where: Downtown Reykjavík
Hallgrímskirkja
A large concrete church whose tower gives views over the city's coloured rooftops.
Harpa
A glass-faced concert hall on the harbour.
Golden Circle
A day route covering Þingvellir National Park, the Geysir geothermal area and Gullfoss waterfall.
Blue Lagoon
A geothermal spa in a lava field near the airport.
💡 Booking ahead is required.
Northern lightsgreat in Sep
Aurora can be seen on clear, dark nights away from city lights.
💡 There is no darkness in summer.
Whale watchinggreat in Sep
Boat trips from the Old Harbour look for minke whales, humpbacks and dolphins.
💡 Sea conditions are best in summer.
Pylsur
Icelandic hot dogs with lamb, crispy onions and remoulade.
💡 Bæjarins Beztu Pylsur stand near the harbour
Skyr
A thick, high-protein cultured dairy product.
💡 Supermarkets and cafes
Kjötsúpa
Lamb and root-vegetable soup.
💡 Traditional restaurants
Plokkfiskur
Mashed fish and potato stew.
💡 Traditional restaurants
Hákarl
Fermented shark, a strong-smelling traditional food often taken with Brennivín.
💡 Traditional restaurants and food tours
Lopapeysa
Traditional Icelandic wool sweater with a patterned yoke.
💡 Wool shops; check for 'hand-knitted in Iceland' labels
Brennivín
Iceland's caraway-flavoured schnapps.
💡 Duty-free and state liquor shops (Vínbúðin)
Icelandic sea salt
Flaky sea salt produced with geothermal heat.
💡 Supermarkets and design shops
Airport transfer Kiwitaxi
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