April 21 sees frequent showers in Reykjavik. Historical data shows a 43% chance of rain, so pack accordingly. Temperatures average 8°C. You'll find plenty of company in Reykjavik this month as tourism activity remains quite robust. Note: April 21 is Easter Monday in Reykjavik, so expect special events, closures, and festive atmosphere.
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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 April 21
"Mild & Comfortable. Expect average highs of 7.5°C. 43% chance of snow."
What to Wear in Reykjavik in April
Based on historical data for April 21, Reykjavik typically experiences temperatures between 1.5°C and 7.5°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 43% 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
7.5°C
Daytime Peak
Average Low
1.5°C
Nighttime Low
Feels Like
3.9°C
❄️ Slightly colder
Snow Chance
43%
Avg 2.5mm if it snows
Snowfall
0.3 cm
~43% chance
Pressure
1014 hPa
High volatility
Reykjavik Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 93% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 40 min to burn
Type III-IV
🟡 60 min to burn
Type V-VI
🟢 100 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
3.9°C
Dry air
Heat Stress
Low
No heat warning
😕 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Holiday
Easter Monday
Flight Traffic
Busy
61/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~67
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Reykjavik
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:36
☀️ Noon
13:27
🌇 Sunset
21:18
⏱️ Daylight
15h 42m
Wind Speed
22.7 km/h
Moderate wind
Sunshine
8.8 hrs
Direct Sun (Cloud-free)
Humidity
78%
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
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
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 April 21 averages 7.5°C with a 43% precipitation probability. Wedding/Outdoor Event Score: 42/100."
— 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
April 26
8.2°C • 34% rain
Score
51
April 27
8.1°C • 33% rain
Score
51
April 23
8.1°C • 36% rain
Score
50
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 21) in other destinations
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📍 Is Reykjavik Worth Visiting on April 21?
Planning a trip to Reykjavik on April 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 7.5°C with a 43% historical precipitation risk.
🎉 Local Event: The date coincides with Easter Monday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 67 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 5.2°C (polar plunge). Wave conditions are generally fun waves with heights around 0.82m.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 12.9°C in 2022, while the coldest dropped to -1.2°C in 2017.