Seyðisfjörður Weather in May
May in Seyðisfjörður typically sees daytime highs of 7°C (45°F) and nighttime lows of 1°C (34°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Seyðisfjörður in May
You can expect rain on around 14 days based on historical patterns, with 84 mm (3.3 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Seyðisfjörður in May
May in Seyðisfjörður brings typical temperatures with highs around 7°C (45°F) and lows of 1°C (34°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows around 1°C (34°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.May in Seyðisfjörður 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.
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 Seyðisfjörður's climate page.
Seyðisfjörður Temperature in May
Min Temperature
1°C (34°F)
Max Temperature
7°C (45°F)
Chance of Rain
46%
Precipitation
84 mm (3.3 in)
Rainy days
14 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Seyðisfjörður typically rise from around 6°C (43°F) at the start of May to approximately 9°C (48°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 4°C (39°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 Seyðisfjörður in May
Browse day-by-day weather records for Seyðisfjörður spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seyðisfjörður historical weather extremes in May
Our historical data for Seyðisfjörður spans 1976 to 2026, revealing these weather extremes.
- On May 14, 2025, temperatures climbed to 22°C (72°F), marking the warmest May day on record.
- The coldest May day was on May 2, 1979, with a maximum of -4°C (25°F).
- Seyðisfjörður registered its coldest May night on May 2, 2013, with temperatures dropping to -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
What to Wear in Seyðisfjörður in May
Dress warmly and in layers for your trip to Seyðisfjörður in May. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags.What To Do in Seyðisfjörður 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 Seyðisfjörður's climate page.
See the full Seyðisfjörður climate overview or explore weather in Iceland.
