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Blönduós Weather in May
During May, Blönduós experiences low daytime temperatures of 8°C (46°F) and cooler nights around 2°C (36°F). Expect quite a bit of rainfall. Around 63 mm (2.5 in) is typical.
Rainfall in Blönduós in May
Records from the past 30 years suggest around 13 days of rain, with 63 mm (2.5 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Blönduós in May
Temperatures in Blönduós in May top out at 8°C (46°F) and drop to 2°C (36°F) overnight. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. At 2°C (36°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.May in Blönduós has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Blönduós Temperature in May
Min Temperature
2°C (36°F)
Max Temperature
8°C (46°F)
Chance of Rain
45%
Precipitation
63 mm (2.5 in)
Rainy days
13 days
Blönduós Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Blönduós - and find the best time to visit.
Daily Historical Temperatures
43-year average (1983-2025)
Based on our historical records, temperatures in Blönduós typically rise from around 7°C (45°F) at the start of May to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 5°C (41°F).
Average temperatures in May
Historical weather records for Blönduós in May
Browse day-by-day weather records for Blönduós spanning 47 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Blönduós historical weather extremes in May
Based on 37 years of weather observations in Blönduós between 1989 and 2026, these are the recorded extremes.
- Blönduós recorded its highest May temperature of 21°C (70°F) on May 19, 2025.
- On May 5, 1997, Blönduós saw its coldest May day with temperatures maxing out at -2°C (28°F).
- The coldest night in May in Blönduós was on May 5, 2015, with a minimum of -8°C (18°F).
Best Places in Iceland in May
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
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 Blönduós in May
We recommend to layer up for chilly conditions in Blönduós in May. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket.
What To Do in Blönduós in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling4/10 -
Walking4/10 -
Barbeque1/10 -
Camping4/10 -
Outdoor sports4/10
Blönduós 3-Day Forecast
More climate data for Blönduós
See the full Blönduós climate overview or explore weather in Iceland.
Popular in May
Where to go in May - average daytime high across popular destinations.
Hella
12°C (54°F) Reykjavík
11°C (52°F) Kópavogur11°C (52°F) Selfoss11°C (52°F) Keflavík9°C (48°F) Höfn
8°C (46°F) Akureyri
6°C (43°F) Egilsstadir7°C (45°F) Bucket list
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