May 20 is generally a great time to visit Reykjavik. While there is a slight chance of rain (36%), showers are usually brief. Expect comfortable 10°C weather. It's a lively time to explore Reykjavik, with most attractions operating at full capacity.
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Essential Travel Info for Reykjavik
Currency
ISK
kr Icelandic króna
Language
Icelandic
Driving
Right side
Safety
Very High Safety
GPI: 1.107
Reykjavik Weather Forecast for May 20
"Mild & Comfortable. Expect average highs of 10.2°C. 36% chance of snow."
What to Wear in Reykjavik in May
Based on historical data for May 20, Reykjavik typically experiences temperatures between 4°C and 10.2°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 36% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Reykjavik
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
10.2°C
Daytime Peak
Average Low
4°C
Nighttime Low
Feels Like
8.3°C
❄️ Minor difference
Snow Chance
36%
Avg 1.8mm if it snows
Snowfall
0.1 cm
~36% chance
Pressure
1011.3 hPa
High volatility
Reykjavik Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 31 min to burn
Type III-IV
🟡 47 min to burn
Type V-VI
🟢 78 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
6°C
Dry air
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Iceland
Flight Traffic
Busy
64/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~70
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Reykjavik
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
03:58
☀️ Noon
13:25
🌇 Sunset
22:52
⏱️ Daylight
18h 53m
Wind Speed
20.3 km/h
Moderate wind
Sunshine
11.3 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Reykjavik
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Reykjavik
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Mild discomfort possible for arthritic conditions.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Reykjavik on May 20 averages 10.2°C with a 36% precipitation probability. Wedding/Outdoor Event Score: 62/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Reykjavik Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Reykjavik Worth Visiting on May 20?
Planning a trip to Reykjavik on May 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 10.2°C with a 36% historical precipitation risk.
✈️ Travel Logistics: Approximately 70 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Iceland, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 8.2°C (polar plunge). Wave conditions are generally surfers only with heights around 1.33m.
📊 Historical Extremes: The hottest May 20 recorded in the last 30 years saw temperatures hit 18°C in 2025, while the coldest dropped to 1°C in 2021.