September 3 sees frequent showers in Nikko. Historical data shows a 64% chance of rain, so pack accordingly. Temperatures average 26°C. Expect a bustling atmosphere in Nikko right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Nikko
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Safety
Very High Safety
GPI: 1.336
Nikko Weather Forecast for September 3
"Rainy & Overcast. Expect average highs of 25.7°C. 64% chance of rain."
What to Wear in Nikko in September
Based on historical data for September 3, Nikko typically experiences temperatures between 19.5°C and 25.7°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 64% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nikko
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
25.7°C
Daytime Peak
Average Low
19.5°C
Nighttime Low
Feels Like
27°C
☀️ Minor difference
Rain Chance
64%
Avg 7.6mm if it rains
Cloud Cover
75%
Moderate rain
Pressure
1012.6 hPa
Medium volatility
Nikko Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 86% 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
🔴 33 min to burn
Type III-IV
🟡 50 min to burn
Type V-VI
🟢 83 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
23.4°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Japan
Flight Traffic
High
98/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~968
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nikko
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:14
☀️ Noon
11:42
🌇 Sunset
18:09
⏱️ Daylight
12h 55m
Wind Speed
8.4 km/h
Light breeze
Sunshine
7.6 hrs
Direct Sun (Cloud-free)
Humidity
87%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nikko
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Nikko
Travel Comfort Index
Real-time tourism conditions
Weather Quality
🌧️ Variable
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Very high seismic risk. Ring of Fire territory.
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, Nikko on September 3 averages 25.7°C with a 64% precipitation probability. Wedding/Outdoor Event Score: 67/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nikko Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 8
25.4°C • 56% rain
Score
74
August 30
26.2°C • 56% rain
Score
73
August 31
26.2°C • 57% rain
Score
72
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 3) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nikko Worth Visiting on September 3?
Planning a trip to Nikko on September 3? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.7°C with a 64% historical precipitation risk.
✈️ Travel Logistics: Approximately 968 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 8 vaccinations are recommended for Japan, including COVID-19.
📊 Historical Extremes: The hottest September 3 recorded in the last 30 years saw temperatures hit 30.4°C in 2025, while the coldest dropped to 13.8°C in 2017.