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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.
Blue Lagoon Weather in August
In Blue Lagoon, August brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.
Rainfall in Blue Lagoon in August
You can expect rain on roughly 18 days based on historical data, averaging 107 mm (4.2 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Blue Lagoon in August
Temperatures in Blue Lagoon in August top out at 14°C (57°F) and drop to 10°C (50°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Blue Lagoon in August
The city usually sees around 154 hours of sunlight, indicating a moderately sunny period.If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Blue Lagoon.
Blue Lagoon Temperature in August
Min Temperature
10°C (50°F)
Max Temperature
14°C (57°F)
Chance of Rain
58%
Precipitation
107 mm (4.2 in)
Rainy days
18 days
Humidity
81% *
Sunshine
154 hours *
Percentage Sunshine
31% *
* Data from: Reykjavík, Iceland (38 KM, 24 Miles).
Blue Lagoon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Blue Lagoon - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Blue Lagoon typically stay consistent throughout August, with daily highs averaging around 14°C (57°F). Nights are cool, with lows around 8°C (46°F).
Average temperatures in August
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 August
Historical weather records for Blue Lagoon in August
Browse day-by-day weather records for Blue Lagoon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Blue Lagoon historical weather extremes in August
According to our 50 years of weather records for Blue Lagoon, the following extremes were recorded between 1976 and 2026.
- The hottest August day on record in Blue Lagoon reached 26°C (79°F) (August 11, 2004).
- The coldest August day was on August 27, 1992, with a maximum of 7°C (45°F).
- The coldest night in August in Blue Lagoon was on August 28, 1982, with a minimum of 3°C (37°F).
Best Places in Iceland in August
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
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Blue Lagoon in August
Pack for changing conditions in Blue Lagoon in August. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Blue Lagoon in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports9/10
Blue Lagoon 3-Day Forecast
More climate data for Blue Lagoon
Temperature Rainfall Sunshine Humidity
See the full Blue Lagoon climate overview or explore weather in Iceland.
Popular in August
Where to go in August - average daytime high across popular destinations.
Hella
16°C (61°F) Selfoss15°C (59°F) Reykjavík15°C (59°F) Kópavogur15°C (59°F) Egilsstadir
13°C (55°F) Keflavík13°C (55°F) Höfn
12°C (54°F) Akureyri13°C (55°F) Bucket list
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