Early autumn · Weather & things to do
Jökulsárlón in September
Jökulsárlón edges cooler than August, with highs of 46°F (8°C), lows of 42°F (6°C) and about 8.7 in (220 mm) of rain.
Our comfort score puts it mid-table at 30/100, 5th of 12.
- Avg high
- 46°F (8°C)
- Avg low
- 42°F (6°C)
- Rain
- 8.7 in (220 mm)
- Humidity
- 87%
- Cloud cover
- 84%
- Daylight
- ~12 h 37 min
- Comfort score
- 30/100 · Tough
What September feels like
Afternoons only reach about 46°F (8°C), so plan on a warm jacket.
Nights cool to an average low of 42°F (6°C).
Expect regular rain: about 8.7 in (220 mm) falls in the month.
Skies are often grey, with average cloud cover around 84%.
It's breezy, with average winds near 13 mph (5.6 m/s) at ground level.
Plan around September
September sits mid-table; the best months are June – August.
- Comfort slips from 44/100 in August to 30/100.
- September sits inside the Jun – Sep window our Iceland Ring Road route recommends.
What to pack for September
- Insulated jackethighs only 46°F
- Rain jacket and waterproof shoes8.7 in of rain on average
- Windproof shellaverage wind 13 mph
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Jökulsárlón in September
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
Jökulsárlón boat tour
Amphibious boat or zodiac trips among the icebergs.
Why now Our curated notes say it's best May–Oct.
Þórbergssetur
Hali farm cultural center and restaurant serving local char and lamb.
Why now A sit-down stop to wait out showers in a month with 8.7 in of rain.
Frost Restaurant
Buffet restaurant at the Fjallsárlón visitor center with glacier views.
Why now Easy to slot in when September's rain moves in.
Diamond Beach
Black sand covered with ice chunks washed out from the lagoon.
Skaftafell
Vatnajökull National Park area with glacier walks and the Svartifoss trail.
Nearby in September
- Vík in September~96 mi · highs 50°F, 9.0 in rain · 2°C (4°F) warmer by day, about as wet
- Mývatn in September~108 mi · highs 43°F, 4.2 in rain · 2°C (3°F) cooler by day, drier
- Reykjavík in September~172 mi · highs 51°F, 7.1 in rain · 3°C (5°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Jökulsárlón in September: quick answers
Is September a good time to visit Jökulsárlón?
It's middling, scoring 30/100. The best months are June – August, at up to 47. Expect highs of 46°F (8°C) and 8.7 in (220 mm) of rain. September is inside the Jun – Sep window our Iceland Ring Road route recommends.
How cold is Jökulsárlón in September?
Average highs are 46°F (8°C) and average lows 42°F (6°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Jökulsárlón in September?
Yes: about 8.7 in (220 mm) of rain falls across September on average, the 6th-driest month of the year. The annual total is about 93.6 in (2377 mm).
What should I pack for Jökulsárlón in September?
Bring insulated jacket (highs only 46°F), rain jacket and waterproof shoes (8.7 in of rain on average), windproof shell (average wind 13 mph) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Jökulsárlón
Routes in season in September
- Iceland Ring Road Jun – Sep
Planning Jökulsárlón in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.