April 21 is generally a great time to visit Charlotte Amalie. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 26°C weather. Expect a bustling atmosphere in Charlotte Amalie right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Charlotte Amalie
Charlotte Amalie Weather Forecast for April 21
"Warm & Sunny. Expect average highs of 26.2°C. 16% chance of rain."
What to Wear in Charlotte Amalie in April
Based on historical data for April 21, Charlotte Amalie typically experiences temperatures between 24.8°C and 26.2°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (16% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Charlotte Amalie
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.2°C
Daytime Peak
Average Low
24.8°C
Nighttime Low
Feels Like
27.3°C
☀️ Minor difference
Rain Chance
16%
Avg 1.1mm if it rains
Cloud Cover
45%
Light drizzle
Pressure
1015.1 hPa
Low volatility
Charlotte Amalie 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 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 14 min to burn
Type III-IV
🟡 21 min to burn
Type V-VI
🟢 35 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.8°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 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 US Virgin Islands
Flight Traffic
High
84/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~43
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Charlotte Amalie
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:59
☀️ Noon
12:19
🌇 Sunset
18:39
⏱️ Daylight
12h 39m
Wind Speed
27.7 km/h
Moderate wind
Sunshine
11.3 hrs
Direct Sun (Cloud-free)
Humidity
77%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Charlotte Amalie
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Charlotte Amalie
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
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, Charlotte Amalie on April 21 averages 26.2°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 91/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Charlotte Amalie Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 23
26.3°C • 12% rain
Score
97
April 24
26.3°C • 14% rain
Score
97
April 25
26.4°C • 13% rain
Score
96
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 21) in other destinations
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📍 Is Charlotte Amalie Worth Visiting on April 21?
Planning a trip to Charlotte Amalie on April 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 26.2°C with a 16% historical precipitation risk.
✈️ Travel Logistics: Approximately 43 landing slots available daily during this period, indicating manageable crowd levels.
🌊 Coastal Conditions: Water temperature averages 27.5°C (tropical bath). Wave conditions are generally fun waves with heights around 1.15m.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 27.3°C in 2020, while the coldest dropped to 23.7°C in 2019.