Akranes Weather in May
During May, Akranes experiences low daytime temperatures of 10°C (50°F) and cooler nights around 4°C (39°F). Expect quite a bit of rainfall. Around 90 mm (3.5 in) is typical.
Rainfall in Akranes in May
You can expect rain on around 15 days based on historical patterns, with 90 mm (3.5 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Akranes in May
Daytime highs in Akranes in May reach 10°C (50°F), with nights around 4°C (39°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Akranes in May
The city usually sees around 201 hours of sunlight, indicating many sunny days despite the cool temperatures, making it a good month for sightseeing.
Wind Speed in Akranes in May
May has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.
Average water temperature in May
With water temperatures around 8°C (46°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.If you're looking for dry conditions and comfortable temperatures, May may not be the ideal month to visit Akranes. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Akranes's climate page.
Akranes Temperature in May
Min Temperature
4°C (39°F)
Max Temperature
10°C (50°F)
Water Temperature
8°C (46°F) *
Chance of Rain
49%
Precipitation
90 mm (3.5 in)
Rainy days
15 days
Humidity
76% *
Windspeed
5 m/s (10 knots) *
Sunshine
201 hours *
Percentage Sunshine
35% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Akranes 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 Akranes in May
Browse day-by-day weather records for Akranes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Akranes historical weather extremes in May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Akranes.
- On May 15, 1988, temperatures climbed to 20°C (68°F), marking the warmest May day on record.
- On May 3, 1982, Akranes saw its coldest May day with temperatures maxing out at -2°C (28°F).
- Nighttime temperatures dropped to -7°C (19°F) on May 5, 1982, marking the coldest May night on record.
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
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tolerable
unpleasant
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What to Wear in Akranes in May
The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 8°C (46°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Akranes 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 Akranes's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Akranes climate overview or explore weather in Iceland.
