August · Iceland
Best time to visit Heimaey in August Weather, crowds & prices
Weather in Heimaey in August
Average temperature 10°C, 156 mm of rain, about 10 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
5.9/10
Ranked #3 of 12 months
- Avg temp
- 10°C
- Rainfall
- 156 mm
- Humidity
- 87%
- Days with 6h+ sun
- 10
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Heimaey scores 5.9/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 10°C, 156 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.
Heimaey is the Vestmannaeyjar’s main island-1973 lava fields, puffin cliffs, and a harbour ringed by volcanic walls. Best window: the short high-summer window when daylight peaks.
August in Heimaey — middling scores, decent value
August averages 10°C (50°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 156 mm this is a genuinely wet month: about 10 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 5.9/10 here, 3rd of 12 months, against 7.2/10 in the destination's best month.
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.
Plan for peak pricing, with 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 Heimaey in August?
- In August, Heimaey averages 10°C, 156 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 5.9/10.
- Is August a good time to visit Heimaey?
- August earns a 5.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Heimaey in August?
- Expect about 156 mm of rain in August. Average humidity is 87% and there are about 10 days with 6+ hours of sunshine.
Curated in Heimaey
Tickets & experiences
Things to do in Heimaey
Heimaey, Iceland. Live activities and tours from GetYourGuide, matched to this destination.