Iceland · Month comparison
October vs September
September ranks #1 overall vs October at #6. Aurora returns, autumn colours explode, crowds drop — the most atmospheric month in Iceland.
October
#6 of 12 months
Best match
Strong aurora season building, excellent value — the wettest month requires rain gear.
- ↑Aurora season well established with long dark nights — multiple sighting opportunities per week on clear nights
- ↑Prices 35–40% below summer peak; car hire and accommodation at genuinely competitive rates
September
#1 of 12 months
Best match
Aurora returns, autumn colours explode, crowds drop — the most atmospheric month in Iceland.
- ↑Aurora borealis returns from early September as nights grow long enough — first sightings of the new season
- ↑Autumn colours (yellows, reds, oranges across the highlands) peak in September — uniquely photogenic landscapes
| Factor | October | September |
|---|---|---|
| Weather score | 4 | 6 |
| Value score | 8 | 6 |
| Crowd score | 8 | 7 |
| Events score | 5 | 7 |
| Atmosphere | 8 | 9 |
| Avg high temp | 6°C | 10°C |
| Monthly rain | 86mm | 67mm |
| Daily sunshine | 5.8hrs | 8.5hrs |
October trade-offs
- ↓Wettest month of the year (86mm) — rain and wind frequent; outdoor plans require flexibility
- ↓Short days (5.8h sunshine) limit sightseeing hours; landscape photography window narrow
- ↓Most F-roads and highland routes fully closed for the season
September trade-offs
- ↓Temperatures drop quickly (10°C high); warm layers essential and weather windows shorter
- ↓Highland F-roads closing progressively through September — some interior routes blocked by late month
- ↓Aurora is back but not yet at winter frequency — nights still shorter than January–March
Scores compare months within Iceland. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →