Blue Lagoon weather in September
Cool, with regular rainfall. Average highs of 10°C and lows of 7°C, with around 19 rainy days expected throughout the month.
While September isn't our top-rated month for Blue Lagoon, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
10°C
Average low
7°C
Rainy days
19 days
Best months to visit
Year-round
What to do in Blue Lagoon in September
Whatever the weather, Blue Lagoon rewards curious visitors. Here are some of the best ways to spend your time:
Geothermal spa bathing and mineral soaking
Photography in the milky-blue water
Spa treatments and massages
Silica mud mask applications
Dining at in-water restaurants
Nearby lava field exploration
What to pack for September
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
3C
Cold, with regular rainfall.
February
3C
Cold, with regular rainfall.
March
3C
Cold, with regular rainfall.
April
6C
Cold, with regular rainfall.
May
9C
Cold, with regular rainfall.
June
11C
Cool, with regular rainfall.
July
13C
Cool, with some rainy days.
August
13C
Cool, with some rainy days.
September (you are here)
10C
Cool, with regular rainfall.
October
7C
Cold, with regular rainfall.
November
5C
Cold, with regular rainfall.
December
3C
Cold, with regular rainfall.
Book your September trip to Blue Lagoon
Find hotels, tours and experiences for the perfect escape.
