March 25 is generally a great time to visit Nagasaki. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 16°C weather. Nagasaki is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Nagasaki
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Safety
Very High Safety
GPI: 1.336
Nagasaki Weather Forecast for March 25
"Mild & Comfortable. Expect average highs of 15.6°C. 32% chance of rain."
What to Wear in Nagasaki in March
Based on historical data for March 25, Nagasaki typically experiences temperatures between 10°C and 15.6°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 32% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nagasaki
Smart Suitcase
- Light Jacket
- Long Pants
- Umbrella
Average High
15.6°C
Daytime Peak
Average Low
10°C
Nighttime Low
Feels Like
15.6°C
🌤️ Feels accurate
Rain Chance
32%
Avg 3.3mm if it rains
Cloud Cover
65%
Overcast
Pressure
1017.2 hPa
Medium volatility
Nagasaki Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 87% 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
🔴 29 min to burn
Type III-IV
🟡 44 min to burn
Type V-VI
🟢 73 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
11°C
Pleasant
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
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Japan
Flight Traffic
High
96/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~46
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nagasaki
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:19
☀️ Noon
12:27
🌇 Sunset
18:35
⏱️ Daylight
12h 16m
Wind Speed
21.7 km/h
Moderate wind
Sunshine
7.5 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nagasaki
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Nagasaki
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
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, Nagasaki on March 25 averages 15.6°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 83/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nagasaki Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
March 21
14.8°C • 30% rain
Score
91
March 22
14.9°C • 30% rain
Score
91
March 30
16.1°C • 24% rain
Score
89
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 25) in other destinations
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📍 Is Nagasaki Worth Visiting on March 25?
Planning a trip to Nagasaki on March 25? 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 15.6°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 46 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 15.4°C (polar plunge). Wave conditions are generally fun waves with heights around 1.18m.
📊 Historical Extremes: The hottest March 25 recorded in the last 30 years saw temperatures hit 20.9°C in 2025, while the coldest dropped to 6.7°C in 2016.