May 28 is generally a great time to visit San Sebastian. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 20°C weather. Take advantage of the off-peak calm in San Sebastian to see the sights without the usual crowds.
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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 May 28
"Mild & Comfortable. Expect average highs of 20.1°C. 23% chance of rain."
What to Wear in San Sebastian in May
Based on historical data for May 28, San Sebastian typically experiences temperatures between 13°C and 20.1°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (23% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for San Sebastian
Smart Suitcase
- Light Jacket
- Long Pants
Average High
20.1°C
Daytime Peak
Average Low
13°C
Nighttime Low
Feels Like
20.1°C
☀️ Feels accurate
Rain Chance
23%
Avg 1.6mm if it rains
Cloud Cover
62%
Overcast
Pressure
1018.8 hPa
Medium volatility
San Sebastian 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
05:00 - 10:00
16:00 - 20:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.7°C
Noticeable
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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Spain
Flight Traffic
Quiet
20/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~6
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in San Sebastian
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:34
☀️ Noon
13:06
🌇 Sunset
20:38
⏱️ Daylight
15h 4m
Wind Speed
13.7 km/h
Gentle breeze
Sunshine
11.2 hrs
Direct Sun (Cloud-free)
Humidity
81%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for San Sebastian
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in San Sebastian
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
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, San Sebastian on May 28 averages 20.1°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— 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
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 28) in other destinations
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📍 Is San Sebastian Worth Visiting on May 28?
Planning a trip to San Sebastian on May 28? 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 20.1°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 6 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 18°C (refreshing tonic). Wave conditions are generally fun waves with heights around 1.11m.
📊 Historical Extremes: The hottest May 28 recorded in the last 30 years saw temperatures hit 32°C in 2017, while the coldest dropped to 9.4°C in 2024.