March 20 is generally a great time to visit Naha. While there is a slight chance of rain (36%), showers are usually brief. Expect comfortable 21°C weather. Naha is currently in its most popular travel window, meaning vibrant crowds and premium pricing. Note: March 20 is Vernal Equinox Day in Naha, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Naha
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Safety
Very High Safety
GPI: 1.336
Naha Weather Forecast for March 20
"Mild & Comfortable. Expect average highs of 21.2°C. 36% chance of rain."
What to Wear in Naha in March
Based on historical data for March 20, Naha typically experiences temperatures between 17.9°C and 21.2°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 36% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Naha
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
21.2°C
Daytime Peak
Average Low
17.9°C
Nighttime Low
Feels Like
21.4°C
☀️ Feels accurate
Rain Chance
36%
Avg 2.7mm if it rains
Cloud Cover
66%
Overcast
Pressure
1016.5 hPa
Low volatility
Naha Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 98% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 28 min to burn
Type III-IV
🟡 42 min to burn
Type V-VI
🟢 70 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.6°C
Noticeable
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Holiday
Vernal Equinox Day
Flight Traffic
High
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~185
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Naha
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:35
☀️ Noon
12:38
🌇 Sunset
18:41
⏱️ Daylight
12h 6m
Wind Speed
29.9 km/h
Fresh breeze
Sunshine
8.0 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Naha
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Naha
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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.
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, Naha on March 20 averages 21.2°C with a 36% precipitation probability. Wedding/Outdoor Event Score: 81/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Naha Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
March 13
20.5°C • 25% rain
Score
87
March 15
20.8°C • 25% rain
Score
87
March 16
21°C • 25% rain
Score
87
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 20) in other destinations
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📍 Is Naha Worth Visiting on March 20?
Planning a trip to Naha on March 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21.2°C with a 36% historical precipitation risk.
🎉 Local Event: The date coincides with Vernal Equinox Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 185 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Japan, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 21.5°C (swimming pool). Wave conditions are generally fun waves with heights around 1.13m.
📊 Historical Extremes: The hottest March 20 recorded in the last 30 years saw temperatures hit 24.3°C in 2021, while the coldest dropped to 12.6°C in 2025.