Iceland Airwaves Festival
On its way to its 20th edition in 2019 Iceland Airwaves is a festival you need to visit once in your life. Everything from lagoons and bookstores to bars and concert halls is filled with music.
August in Jokulsarlon Glacial Lagoon averages 10°C (50°F) during the day and 6°C (43°F) at night. August is part of the rainy season, with around 209 mm (8.2 in) of rainfall and frequent showers.
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Pick a month to see the average temperature, rainfall and sunshine in Jokulsarlon Glacial Lagoon - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Jokulsarlon Glacial Lagoon typically stay consistent throughout August, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 8°C (46°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
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.
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Jokulsarlon Glacial Lagoon.
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in August →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
The weather can swing between comfortable and chilly in August, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. 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 month
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Jokulsarlon Glacial Lagoon climate overview or explore weather in Iceland.
Where to go in August - average daytime high across popular destinations.
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