Borgarnes Weather in May
May in Borgarnes brings low temperatures, with daytime highs of 10°C (50°F) and nights around 4°C (39°F). Quite a bit of rainfall is expected, around 88 mm (3.5 in), so pack an umbrella.
Rainfall in Borgarnes in May
Typically, about 14 days will experience rainfall, with an average of 88 mm (3.5 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Borgarnes in May
May in Borgarnes brings typical temperatures with highs around 10°C (50°F) and lows of 4°C (39°F). Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Borgarnes in May
Expect sunny days throughout the month, with an estimated 201 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit Borgarnes.May in Borgarnes 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Borgarnes's climate page.
Borgarnes Temperature in May
Min Temperature
4°C (39°F)
Max Temperature
10°C (50°F)
Chance of Rain
48%
Precipitation
88 mm (3.5 in)
Rainy days
14 days
Humidity
76% *
Sunshine
201 hours *
Percentage Sunshine
35% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Borgarnes 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).
Average temperatures in May
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 May
Historical weather for Borgarnes in May
Browse day-by-day weather records for Borgarnes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Borgarnes historical weather extremes in May
Based on 50 years of weather observations in Borgarnes between 1976 and 2026, these are the recorded extremes.
- Borgarnes recorded its highest May temperature of 22°C (72°F) on May 18, 2025.
- The lowest daytime temperature in May was -2°C (28°F), recorded on May 3, 1982.
- Borgarnes registered its coldest May night on May 5, 1982, with temperatures dropping to -6°C (21°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
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What to Wear in Borgarnes in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Borgarnes in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Borgarnes's climate page.
Temperature Rainfall Sunshine Humidity
See the full Borgarnes climate overview or explore weather in Iceland.
