August · Iceland
Best time to visit Blue Lagoon in August Weather, crowds & prices
Weather in Blue Lagoon in August
Average temperature 11°C, 116 mm of rain, about 10 days with 6+ hours of sunshine and 85% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
6.5/10
Ranked #3 of 12 months
- Avg temp
- 11°C
- Rainfall
- 116 mm
- Humidity
- 85%
- Days with 6h+ sun
- 10
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Blue Lagoon scores 6.5/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 11°C, 116 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.
Milky geothermal waters in a black lava field, striking year-round against cool Icelandic air.
August in Blue Lagoon — workable with trade-offs
Expect 11°C (51°F) in August. A good month for city streets, viewpoints and long meals; leave swimming for another season.
116 mm of rain signals a properly wet month, with only about 10 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.5/10 on the same scale — 3rd of 12 months, versus 7.7/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Blue Lagoon in August?
- In August, Blue Lagoon averages 11°C, 116 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 6.5/10.
- Is August a good time to visit Blue Lagoon?
- August earns a 6.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Blue Lagoon in August?
- Expect about 116 mm of rain in August. Average humidity is 85% and there are about 10 days with 6+ hours of sunshine.
Curated in Blue Lagoon
Tickets & experiences
Things to do in Blue Lagoon
Blue Lagoon, Iceland. Live activities and tours from GetYourGuide, matched to this destination.