April 21 is generally a great time to visit Nha Trang. While there is a slight chance of rain (17%), showers are usually brief. Expect comfortable 31°C weather. You'll find plenty of company in Nha Trang this month as tourism activity remains quite robust.
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Essential Travel Info for Nha Trang
Currency
VND
₫ Vietnamese đồng
Language
Vietnamese
Driving
Right side
Connect
There are not that many Internet cafes a...
Safety
High Safety
GPI: 1.786
Nha Trang Weather Forecast for April 21
"Warm & Sunny. Expect average highs of 31.4°C. 17% chance of rain."
What to Wear in Nha Trang in April
Based on historical data for April 21, Nha Trang typically experiences temperatures between 25.1°C and 31.4°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (17% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Nha Trang
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
31.4°C
Daytime Peak
Average Low
25.1°C
Nighttime Low
Feels Like
41.9°C
🔥 Heat index effect
Rain Chance
17%
Avg 0.9mm if it rains
Cloud Cover
50%
Overcast
Pressure
1009.8 hPa
Low volatility
Nha Trang Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 09:30
16:00 - 17:00
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
27.3°C
Humid/Sticky
Heat Index
41.9°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Vietnam
Flight Traffic
Busy
64/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~41
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nha Trang
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:29
☀️ Noon
11:43
🌇 Sunset
17:56
⏱️ Daylight
12h 27m
Wind Speed
9.7 km/h
Light breeze
Sunshine
11.2 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nha Trang
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 Nha Trang
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.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
Typhoon Risk
Year-round risk present
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, Nha Trang on April 21 averages 31.4°C with a 17% precipitation probability. Wedding/Outdoor Event Score: 91/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nha Trang Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 15
30.5°C • 18% rain
Score
92
April 16
30.7°C • 18% rain
Score
92
April 23
31.5°C • 15% rain
Score
92
💡 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 Nha Trang Worth Visiting on April 21?
Planning a trip to Nha Trang 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 31.4°C with a 17% historical precipitation risk.
✈️ Travel Logistics: Approximately 41 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for Vietnam, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 27.5°C (tropical bath). Wave conditions are generally fun waves with heights around 0.54m.
📊 Historical Extremes: The hottest April 21 recorded in the last 30 years saw temperatures hit 34.6°C in 2024, while the coldest dropped to 23.5°C in 2020.