April 12 sees frequent showers in San Sebastian. Historical data shows a 45% chance of rain, so pack accordingly. Temperatures average 16°C. San Sebastian is very peaceful this time of year, perfect for a secluded and budget-friendly getaway.
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Essential Travel Info for San Sebastian
Currency
EUR
€ Euro
Language
Spanish
+3 more
Driving
Right side
Safety
High Safety
GPI: 1.603
San Sebastian Weather Forecast for April 12
"Mild & Comfortable. Expect average highs of 15.7°C. 45% chance of rain."
What to Wear in San Sebastian in April
Based on historical data for April 12, San Sebastian typically experiences temperatures between 8.9°C and 15.7°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 45% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for San Sebastian
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
15.7°C
Daytime Peak
Average Low
8.9°C
Nighttime Low
Feels Like
15.7°C
🌤️ Feels accurate
Rain Chance
45%
Avg 3.7mm if it rains
Cloud Cover
63%
Overcast
Pressure
1016.8 hPa
High volatility
San Sebastian Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 83% 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 - 19:00
Type I-II
🔴 22 min to burn
Type III-IV
🟡 33 min to burn
Type V-VI
🟢 55 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
11.9°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
Business Day
Standard hours in Spain
Flight Traffic
Minimal
17/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~5
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in San Sebastian
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:32
☀️ Noon
13:09
🌇 Sunset
19:47
⏱️ Daylight
13h 15m
Wind Speed
17.4 km/h
Gentle breeze
Sunshine
9.2 hrs
Direct Sun (Cloud-free)
Humidity
78%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for San Sebastian
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 San Sebastian
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
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, San Sebastian on April 12 averages 15.7°C with a 45% precipitation probability. Wedding/Outdoor Event Score: 75/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
San Sebastian Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 7
16.2°C • 29% rain
Score
85
April 5
15.4°C • 28% rain
Score
84
April 6
15.8°C • 29% rain
Score
84
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 12) in other destinations
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📍 Is San Sebastian Worth Visiting on April 12?
Planning a trip to San Sebastian on April 12? 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 15.7°C with a 45% historical precipitation risk.
✈️ Travel Logistics: Approximately 5 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 14.6°C (polar plunge). Wave conditions are generally surfers only with heights around 1.4m.
📊 Historical Extremes: The hottest April 12 recorded in the last 30 years saw temperatures hit 23°C in 2024, while the coldest dropped to 6.1°C in 2019.