April 21 sees frequent showers in Bilbao. Historical data shows a 41% chance of rain, so pack accordingly. Temperatures average 17°C. You'll enjoy Bilbao with reasonable crowd levels and competitive accommodation options. Note: April 21 is Easter Monday in Bilbao, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Bilbao
Currency
EUR
€ Euro
Language
Spanish
+3 more
Driving
Right side
Connect
As of June 2022, Bilbao has 5G from all ...
Safety
High Safety
GPI: 1.603
Bilbao Weather Forecast for April 21
"Mild & Comfortable. Expect average highs of 16.9°C. 41% chance of rain."
What to Wear in Bilbao in April
Based on historical data for April 21, Bilbao typically experiences temperatures between 9.4°C and 16.9°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 41% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Bilbao
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
16.9°C
Daytime Peak
Average Low
9.4°C
Nighttime Low
Feels Like
16.9°C
🌤️ Feels accurate
Rain Chance
41%
Avg 2.7mm if it rains
Cloud Cover
66%
Overcast
Pressure
1014.5 hPa
Medium volatility
Bilbao Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 82% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 20:00
Type I-II
🔴 23 min to burn
Type III-IV
🟡 35 min to burn
Type V-VI
🟢 58 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
12.8°C
Pleasant
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
Holiday
Easter Monday
Flight Traffic
Moderate
47/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~88
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Bilbao
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:21
☀️ Noon
13:11
🌇 Sunset
20:01
⏱️ Daylight
13h 40m
Wind Speed
15.5 km/h
Gentle breeze
Sunshine
9.1 hrs
Direct Sun (Cloud-free)
Humidity
77%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Bilbao
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Bilbao
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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 excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Bilbao on April 21 averages 16.9°C with a 41% precipitation probability. Wedding/Outdoor Event Score: 82/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Bilbao Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 23
17.5°C • 35% rain
Score
86
April 15
16.4°C • 31% rain
Score
85
April 16
16.5°C • 31% rain
Score
85
💡 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 Bilbao Worth Visiting on April 21?
Planning a trip to Bilbao 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 16.9°C with a 41% historical precipitation risk.
🎉 Local Event: The date coincides with Easter Monday, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 88 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Spain, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 14.4°C (polar plunge). Wave conditions are generally surfers only with heights around 1.49m.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 25.7°C in 2018, while the coldest dropped to 2.6°C in 2017.