May 18 is generally a great time to visit Santander. While there is a slight chance of rain (36%), showers are usually brief. Expect comfortable 19°C weather. Lower tourist interest in Santander right now translates to better deals and a more local feel.
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Essential Travel Info for Santander
Currency
EUR
€ Euro
Language
Spanish
+3 more
Driving
Right side
Safety
High Safety
GPI: 1.603
Santander Weather Forecast for May 18
"Mild & Comfortable. Expect average highs of 18.5°C. 36% chance of rain."
What to Wear in Santander in May
Based on historical data for May 18, Santander typically experiences temperatures between 11.4°C and 18.5°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 36% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Santander
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
18.5°C
Daytime Peak
Average Low
11.4°C
Nighttime Low
Feels Like
18.5°C
🌤️ Feels accurate
Rain Chance
36%
Avg 2.1mm if it rains
Cloud Cover
63%
Overcast
Pressure
1017.9 hPa
Medium volatility
Santander 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
🔴 18 min to burn
Type III-IV
🟡 27 min to burn
Type V-VI
🟢 45 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
15°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
Quiet
38/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~11
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Santander
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:49
☀️ Noon
13:13
🌇 Sunset
20:36
⏱️ Daylight
14h 47m
Wind Speed
16.5 km/h
Gentle breeze
Sunshine
11.1 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Santander
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 Santander
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Santander on May 18 averages 18.5°C with a 36% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Santander Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
May 25
19.5°C • 30% rain
Score
93
May 19
18.8°C • 31% rain
Score
91
May 23
19.2°C • 32% rain
Score
91
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Santander Worth Visiting on May 18?
Planning a trip to Santander on May 18? 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 18.5°C with a 36% historical precipitation risk.
✈️ Travel Logistics: Approximately 11 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 15.9°C (polar plunge). Wave conditions are generally surfers only with heights around 1.35m.
📊 Historical Extremes: The hottest May 18 recorded in the last 30 years saw temperatures hit 29.8°C in 2022, while the coldest dropped to 9.1°C in 2020.