August 18 is generally a great time to visit Santander. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 24°C weather. As it's peak season for Santander, we recommend booking your stay well in advance to secure the best rates.
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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 August 18
"Mild & Comfortable. Expect average highs of 24.1°C. 23% chance of rain."
What to Wear in Santander in August
Based on historical data for August 18, Santander typically experiences temperatures between 17.2°C and 24.1°C. We recommend packing t-shirt, light clothing 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 Santander
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
24.1°C
Daytime Peak
Average Low
17.2°C
Nighttime Low
Feels Like
24.9°C
☀️ Feels accurate
Rain Chance
23%
Avg 1.3mm if it rains
Cloud Cover
56%
Overcast
Pressure
1017.5 hPa
Medium volatility
Santander Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 77% 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
🔴 20 min to burn
Type III-IV
🟡 30 min to burn
Type V-VI
🟢 50 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
20.4°C
Humid/Sticky
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
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~29
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Santander
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:24
☀️ Noon
13:20
🌇 Sunset
20:16
⏱️ Daylight
13h 51m
Wind Speed
15.6 km/h
Gentle breeze
Sunshine
10.5 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
☀️ Excellent
Tourist Crowds
🔴 Very 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 August 18 averages 24.1°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— 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
August 12
25°C • 16% rain
Score
99
August 13
24.8°C • 17% rain
Score
99
August 15
24.2°C • 20% rain
Score
98
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Santander Worth Visiting on August 18?
Planning a trip to Santander on August 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 24.1°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 29 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 22.2°C (swimming pool). Wave conditions are generally surfers only with heights around 1.26m.
📊 Historical Extremes: The hottest August 18 recorded in the last 30 years saw temperatures hit 30.5°C in 2023, while the coldest dropped to 14.9°C in 2018.