May 15 sees frequent showers in Fortaleza. Historical data shows a 47% chance of rain, so pack accordingly. Temperatures average 29°C. As it's peak season for Fortaleza, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Fortaleza
Currency
BRL
R$ Brazilian real
Language
Portuguese
Driving
Right side
Safety
Moderate Safety
GPI: 2.465
Fortaleza Weather Forecast for May 15
"Warm & Sunny. Expect average highs of 29.2°C. 47% chance of rain."
What to Wear in Fortaleza in May
Based on historical data for May 15, Fortaleza typically experiences temperatures between 24.5°C and 29.2°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 47% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Fortaleza
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29.2°C
Daytime Peak
Average Low
24.5°C
Nighttime Low
Feels Like
35.8°C
🔥 Heat index effect
Rain Chance
47%
Avg 3.5mm if it rains
Cloud Cover
57%
Light drizzle
Pressure
1011.9 hPa
Low volatility
Fortaleza 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 15 for extended outdoor time
Type I-II
🔴 160 min to burn
Type III-IV
🟡 240 min to burn
Type V-VI
🟢 400 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.8°C
Humid/Sticky
Heat Index
35.8°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Brazil
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~69
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Fortaleza
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:33
☀️ Noon
11:31
🌇 Sunset
17:30
⏱️ Daylight
11h 56m
Wind Speed
20.6 km/h
Moderate wind
Sunshine
10.0 hrs
Direct Sun (Cloud-free)
Humidity
82%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Fortaleza
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 Fortaleza
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
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, Fortaleza on May 15 averages 29.2°C with a 47% precipitation probability. Wedding/Outdoor Event Score: 80/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Fortaleza Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
May 19
29.2°C • 43% rain
Score
83
May 21
29.2°C • 44% rain
Score
83
May 11
29.3°C • 40% rain
Score
82
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Fortaleza Worth Visiting on May 15?
Planning a trip to Fortaleza on May 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.2°C with a 47% historical precipitation risk.
✈️ Travel Logistics: Approximately 69 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 9 vaccinations are recommended for Brazil, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 29.7°C (hot soup). Wave conditions are generally surfers only with heights around 1.21m.
📊 Historical Extremes: The hottest May 15 recorded in the last 30 years saw temperatures hit 30.5°C in 2025, while the coldest dropped to 22.1°C in 2025.