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.
May in Hveragerði brings low temperatures, with highs of 11°C (52°F) and nights dropping to 4°C (39°F). Rainfall is on the higher side this month, averaging around 107 mm (4.2 in), so keep a rain jacket handy.
May in Hveragerði has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Pick a month to see the average temperature, rainfall and sunshine in Hveragerði - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Hveragerði typically rise from around 7°C (45°F) at the start of May to approximately 11°C (52°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 6°C (43°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 Hveragerði spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 50 years of weather records for Hveragerði, the following extremes were recorded between 1976 and 2026.
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in May →
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).
Pack for changing conditions in Hveragerði in May. 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Hveragerði climate overview or explore weather in Iceland.
Where to go in May - average daytime high across popular destinations.
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Iceland Airwaves Festival
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