September 17 is statistically one of the best days of the year in Alicante. With minimal rain risk (13%) and pleasant highs of 27°C, it's ideal for outdoor adventures. Alicante is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Alicante
Currency
EUR
€ Euro
Language
Spanish
+3 more
Driving
Right side
Connect
The city provides free Wi-Fi to everyone...
Safety
High Safety
GPI: 1.603
Alicante Weather Forecast for September 17
"Warm & Sunny. Expect average highs of 26.9°C. 13% chance of rain."
What to Wear in Alicante in September
Based on historical data for September 17, Alicante typically experiences temperatures between 20.3°C and 26.9°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (13% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Alicante
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.9°C
Daytime Peak
Average Low
20.3°C
Nighttime Low
Feels Like
27.9°C
☀️ Minor difference
Rain Chance
13%
Avg 0.8mm if it rains
Cloud Cover
40%
Overcast
Pressure
1015.9 hPa
Low volatility
Alicante Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% 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
🔴 24 min to burn
Type III-IV
🟡 36 min to burn
Type V-VI
🟢 60 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
20.7°C
Humid/Sticky
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Spain
Flight Traffic
High
82/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~173
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Alicante
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:46
☀️ Noon
12:57
🌇 Sunset
19:09
⏱️ Daylight
12h 23m
Wind Speed
15.4 km/h
Gentle breeze
Sunshine
10.6 hrs
Direct Sun (Cloud-free)
Humidity
69%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Alicante
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Alicante
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
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, Alicante on September 17 averages 26.9°C with a 13% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Alicante Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 17) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Alicante Worth Visiting on September 17?
Planning a trip to Alicante on September 17? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.9°C with a 13% historical precipitation risk.
✈️ Travel Logistics: Approximately 173 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 26.6°C (tropical bath). Wave conditions are generally fun waves with heights around 0.79m.
📊 Historical Extremes: The hottest September 17 recorded in the last 30 years saw temperatures hit 29°C in 2025, while the coldest dropped to 18°C in 2016.