Ilulissat (Disko Bay) weather in May
Greenland

May in Ilulissat: cold, dry, with clean air — a good time to visit.
#4 of 12 months in Ilulissat · #1067 of 1383 destinations to visit in May · comfort 66/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ilulissat in May
Other months in Ilulissat
Ilulissat's forum flags July for the midnight sun — it doesn't fully set from mid-May into late July — and for mosquitoes, which regulars say are genuinely present through June, July and August. Boat-trip veterans recommend a windproof layer even on a mild-looking day, since the wind off the water cuts the temperature noticeably.
Add your own note from Ilulissat's card on the map.
Ilulissat climate normals — May
| Daytime high | 4°C / 39°F | 🧥 cold |
|---|---|---|
| Nighttime low | -2°C / 28°F | |
| Feels like (high) | 0°C / 32°F | |
| Sea temperature | 1°C / 33°F | 🥶 cold sea |
| Rainfall | 24 mm / 1 in | ☀️ dry |
| Rainy days | 6 days | |
| Humidity | 73% | 💧 humid |
| Dew point | -5°C / 23°F | |
| Sunshine | 14.2 h/day | |
| Daylight | 21.9 h | |
| Wind | 14 km/h / 9 mph | |
| Snowfall | 13.8 cm / 5.4 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Ilulissat in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 4 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Ilulissat's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherIlulissat's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Ilulissat in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Midnight sun
21.9 hours of daylight a day; the sun barely sets.
from the climate normals
Where is Ilulissat?
Ilulissat in May — FAQ
- Is May a good time to visit Ilulissat?
- May in Ilulissat: cold, dry, with clean air — a good time to visit. It ranks #4 of 12 months for Ilulissat on SeasonMap's comfort score (66/100).
- What is the weather like in Ilulissat in May?
- In May, Ilulissat averages a daily high of 4.1°C and a low of -2.4°C, with about 24.4 mm of rain over roughly 6.1 rainy days.
- What is the air quality in Ilulissat in May?
- Ilulissat has a mean US Air Quality Index of about 35 in May.
- Does it snow in Ilulissat in May?
- Ilulissat sees roughly 13.8 cm of snowfall in May.