December 28 is generally a great time to visit San Sebastian. While there is a slight chance of rain (35%), showers are usually brief. Expect comfortable 13°C weather. As it's peak season for San Sebastian, we recommend booking your stay well in advance to secure the best rates.
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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 December 28
"Mild & Comfortable. Expect average highs of 12.8°C. 35% chance of snow."
What to Wear in San Sebastian in December
Based on historical data for December 28, San Sebastian typically experiences temperatures between 7.2°C and 12.8°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 35% 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
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
12.8°C
Daytime Peak
Average Low
7.2°C
Nighttime Low
Feels Like
11.9°C
🌤️ Feels accurate
Snow Chance
35%
Avg 3.6mm if it snows
Snowfall
0.1 cm
~35% chance
Pressure
1020.5 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 92% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
8.9°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 Spain
Flight Traffic
High
83/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~25
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in San Sebastian
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
08:40
☀️ Noon
13:10
🌇 Sunset
17:40
⏱️ Daylight
8h 59m
Wind Speed
21.4 km/h
Moderate wind
Sunshine
5.7 hrs
Direct Sun (Cloud-free)
Humidity
77%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for San Sebastian
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
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Travel Health & Safety in San Sebastian
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.
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 December 28 averages 12.8°C with a 35% precipitation probability. Wedding/Outdoor Event Score: 77/100."
— 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
December 23
13.5°C • 31% rain
Score
84
December 25
13.2°C • 31% rain
Score
83
December 26
13°C • 31% rain
Score
82
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 28) in other destinations
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📍 Is San Sebastian Worth Visiting on December 28?
Planning a trip to San Sebastian on December 28? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 12.8°C with a 35% historical precipitation risk.
✈️ Travel Logistics: Approximately 25 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 14.1°C (polar plunge). Wave conditions are generally surfers only with heights around 1.6m.
📊 Historical Extremes: The hottest December 28 recorded in the last 30 years saw temperatures hit 18.2°C in 2021, while the coldest dropped to 4.3°C in 2019.