July 18 sees frequent showers in Roseau. Historical data shows a 46% chance of rain, so pack accordingly. Temperatures average 28°C.
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Essential Travel Info for Roseau
Currency
XCD
$ Eastern Caribbean dollar
Language
English
Driving
Left side
Roseau Weather Forecast for July 18
"Warm & Sunny. Expect average highs of 28.4°C. 46% chance of rain."
What to Wear in Roseau in July
Based on historical data for July 18, Roseau typically experiences temperatures between 25.4°C and 28.4°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 46% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Roseau
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
28.4°C
Daytime Peak
Average Low
25.4°C
Nighttime Low
Feels Like
33.7°C
🔥 Heat index effect
Rain Chance
46%
Avg 2.7mm if it rains
Cloud Cover
52%
Light drizzle
Pressure
1015.9 hPa
Low volatility
Roseau Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 81% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 12 min to burn
Type III-IV
🟡 18 min to burn
Type V-VI
🟢 30 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.2°C
Humid/Sticky
Heat Index
33.7°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Dominica
Flight Traffic
N/A
0/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
N/A
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Roseau
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:44
☀️ Noon
12:12
🌇 Sunset
18:40
⏱️ Daylight
12h 55m
Wind Speed
30.8 km/h
Fresh breeze
Sunshine
11.5 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Roseau
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Roseau
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very 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
Active seismic zone. Multiple earthquakes per year.
Atlantic Hurricane Risk
Season: Jun - Nov
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Roseau on July 18 averages 28.4°C with a 46% precipitation probability. Wedding/Outdoor Event Score: 68/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Roseau Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
July 13
28.4°C • 36% rain
Score
73
July 12
28.4°C • 39% rain
Score
72
July 14
28.4°C • 39% rain
Score
72
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (July 18) in other destinations
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📍 Is Roseau Worth Visiting on July 18?
Planning a trip to Roseau on July 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 28.4°C with a 46% historical precipitation risk.
💉 Health Advisory: 7 vaccinations are recommended for Dominica, including COVID-19.
📊 Historical Extremes: The hottest July 18 recorded in the last 30 years saw temperatures hit 30.8°C in 2025, while the coldest dropped to 23.9°C in 2025.