August 21 sees frequent showers in Nassau. Historical data shows a 40% chance of rain, so pack accordingly. Temperatures average 30°C. As it's peak season for Nassau, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Nassau
Currency
BSD
$ Bahamian dollar
Language
English
Driving
Left side
Nassau Weather Forecast for August 21
"Warm & Sunny. Expect average highs of 30.3°C. 40% chance of rain."
What to Wear in Nassau in August
Based on historical data for August 21, Nassau typically experiences temperatures between 27°C and 30.3°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 40% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nassau
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
30.3°C
Daytime Peak
Average Low
27°C
Nighttime Low
Feels Like
36.9°C
🔥 Heat index effect
Rain Chance
40%
Avg 2.6mm if it rains
Cloud Cover
56%
Light drizzle
Pressure
1015.7 hPa
Low volatility
Nassau Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 92% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.1°C
Humid/Sticky
Heat Index
36.9°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
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 Bahamas
Flight Traffic
High
93/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~82
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nassau
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:47
☀️ Noon
12:14
🌇 Sunset
18:40
⏱️ Daylight
12h 53m
Wind Speed
22.8 km/h
Moderate wind
Sunshine
11.1 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nassau
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 Nassau
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
Zero seismic activity detected in 30 years.
Atlantic Hurricane Risk
Season: Jun - Nov
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Nassau on August 21 averages 30.3°C with a 40% precipitation probability. Wedding/Outdoor Event Score: 83/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nassau Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 14
30.4°C • 27% rain
Score
91
August 15
30.5°C • 25% rain
Score
90
August 16
30.5°C • 27% rain
Score
89
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 21) in other destinations
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📍 Is Nassau Worth Visiting on August 21?
Planning a trip to Nassau on August 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 30.3°C with a 40% historical precipitation risk.
✈️ Travel Logistics: Approximately 82 landing slots available daily during this period, indicating manageable crowd levels.
🌊 Coastal Conditions: Water temperature averages 30.6°C (hot soup). Wave conditions are generally fun waves with heights around 0.67m.
📊 Historical Extremes: The hottest August 21 recorded in the last 30 years saw temperatures hit 32.1°C in 2021, while the coldest dropped to 25.5°C in 2019.