Jokulsarlon Glacial Lagoon Weather in September
September in Jokulsarlon Glacial Lagoon brings low temperatures around 8°C (46°F) during the day, dropping to 4°C (39°F) at night, with the most rainfall of the year.
Rainfall in Jokulsarlon Glacial Lagoon in September
Jokulsarlon Glacial Lagoon is in the rainy season in September, with rain on around 17 days and an average of 304 mm (12 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.
Temperature in Jokulsarlon Glacial Lagoon in September
September in Jokulsarlon Glacial Lagoon brings low temperatures, with highs of 8°C (46°F) and nights around 4°C (39°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Jokulsarlon Glacial Lagoon in September
The city usually sees around 114 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).Our weather planner can help you explore other travel destinations worldwide.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Jokulsarlon Glacial Lagoon's climate page.
Jokulsarlon Glacial Lagoon Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
8°C (46°F)
Chance of Rain
58%
Precipitation
304 mm (12 in)
Rainy days
17 days
Sunshine
114 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Jokulsarlon Glacial Lagoon typically stay consistent throughout September, with daily highs averaging around 8°C (46°F). Nights are cold, with lows typically ranging from 4°C (39°F) to 7°C (45°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Jokulsarlon Glacial Lagoon in September
Browse day-by-day weather records for Jokulsarlon Glacial Lagoon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jokulsarlon Glacial Lagoon historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Jokulsarlon Glacial Lagoon.
- On September 10, 2002, temperatures climbed to 18°C (64°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 3°C (37°F), recorded on September 28, 2024.
- The coldest night in September in Jokulsarlon Glacial Lagoon was on September 29, 1995, with a minimum of -2°C (28°F).
Best Places in Iceland in September
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Jokulsarlon Glacial Lagoon in September
Dress warmly and in layers for your trip to Jokulsarlon Glacial Lagoon in September. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Jokulsarlon Glacial Lagoon in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Jokulsarlon Glacial Lagoon's climate page.
See the full Jokulsarlon Glacial Lagoon climate overview or explore weather in Iceland.
