April 21 is statistically one of the best days of the year in Prague. With minimal rain risk (14%) and pleasant highs of 16°C, it's ideal for outdoor adventures. You'll enjoy Prague with reasonable crowd levels and competitive accommodation options. Note: April 21 is Easter Monday in Prague, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Prague
Currency
CZK
Kč Czech koruna
Language
Czech
+1 more
Driving
Right side
Connect
Prague has 5G from all Czech carriers (O...
Safety
Very High Safety
GPI: 1.318
Prague Weather Forecast for April 21
"Mild & Comfortable. Expect average highs of 15.9°C. 14% chance of rain."
What to Wear in Prague in April
Based on historical data for April 21, Prague typically experiences temperatures between 4.7°C and 15.9°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (14% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Prague
Smart Suitcase
- Light Jacket
- Long Pants
Average High
15.9°C
Daytime Peak
Average Low
4.7°C
Nighttime Low
Feels Like
15.9°C
🌤️ Feels accurate
Rain Chance
14%
Avg 0.6mm if it rains
Cloud Cover
48%
Overcast
Pressure
1015.7 hPa
Medium volatility
Prague 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 30 recommended
04:00 - 10:00
16:00 - 19:00
Type I-II
🔴 21 min to burn
Type III-IV
🟡 32 min to burn
Type V-VI
🟢 53 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9.6°C
Dry air
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Holiday
Easter Monday
Flight Traffic
Moderate
50/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~168
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Prague
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:58
☀️ Noon
12:02
🌇 Sunset
19:05
⏱️ Daylight
14h 6m
Wind Speed
14.3 km/h
Gentle breeze
Sunshine
10.2 hrs
Direct Sun (Cloud-free)
Humidity
66%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Prague
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Prague
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Prague on April 21 averages 15.9°C with a 14% precipitation probability. Wedding/Outdoor Event Score: 89/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Prague Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 19
15°C • 13% rain
Score
96
April 28
18.1°C • 16% rain
Score
91
April 22
16.1°C • 15% rain
Score
90
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Prague Worth Visiting on April 21?
Planning a trip to Prague on April 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 15.9°C with a 14% historical precipitation risk.
🎉 Local Event: The date coincides with Easter Monday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 168 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 26°C in 2018, while the coldest dropped to -1.5°C in 2017.