March 21 is generally a great time to visit Roseau. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 27°C weather.
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Essential Travel Info for Roseau
Currency
XCD
$ Eastern Caribbean dollar
Language
English
Driving
Left side
Roseau Weather Forecast for March 21
"Warm & Sunny. Expect average highs of 26.8°C. 22% chance of rain."
What to Wear in Roseau in March
Based on historical data for March 21, Roseau typically experiences temperatures between 23.8°C and 26.8°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Roseau
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.8°C
Daytime Peak
Average Low
23.8°C
Nighttime Low
Feels Like
28°C
🔥 Minor difference
Rain Chance
22%
Avg 0.9mm if it rains
Cloud Cover
38%
Light drizzle
Pressure
1015.4 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 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 - 18:00
Type I-II
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
22.4°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 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
06:10
☀️ Noon
12:14
🌇 Sunset
18:17
⏱️ Daylight
12h 7m
Wind Speed
29.1 km/h
Fresh breeze
Sunshine
11.3 hrs
Direct Sun (Cloud-free)
Humidity
77%
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
☀️ Excellent
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
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 March 21 averages 26.8°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— 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
March 14
26.7°C • 11% rain
Score
95
March 15
26.7°C • 12% rain
Score
95
March 16
26.7°C • 13% rain
Score
94
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Roseau Worth Visiting on March 21?
Planning a trip to Roseau on March 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.8°C with a 22% historical precipitation risk.
💉 Health Advisory: 7 vaccinations are recommended for Dominica, including COVID-19.
📊 Historical Extremes: The hottest March 21 recorded in the last 30 years saw temperatures hit 29.9°C in 2024, while the coldest dropped to 22.3°C in 2024.