August 11 sees frequent showers in Nikko. Historical data shows a 67% chance of rain, so pack accordingly. Temperatures average 28°C. Nikko is currently in its most popular travel window, meaning vibrant crowds and premium pricing. Note: August 11 is Mountain Day in Nikko, so expect special events, closures, and festive atmosphere.
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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 August 11
"Rainy & Overcast. Expect average highs of 27.9°C. 67% chance of rain."
What to Wear in Nikko in August
Based on historical data for August 11, Nikko typically experiences temperatures between 21.1°C and 27.9°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 67% 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
27.9°C
Daytime Peak
Average Low
21.1°C
Nighttime Low
Feels Like
32.8°C
🔥 Feels warmer
Rain Chance
67%
Avg 6.6mm if it rains
Cloud Cover
75%
Slight rain
Pressure
1009.2 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 84% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 09:30
16:00 - 18:00
Type I-II
🔴 22 min to burn
Type III-IV
🟡 33 min to burn
Type V-VI
🟢 55 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.3°C
Humid/Sticky
Heat Index
32.8°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Holiday
Mountain Day
Flight Traffic
High
99/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~976
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nikko
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:55
☀️ Noon
11:47
🌇 Sunset
18:39
⏱️ Daylight
13h 43m
Wind Speed
8 km/h
Light breeze
Sunshine
8.9 hrs
Direct Sun (Cloud-free)
Humidity
86%
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
🔴 Very 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 August 11 averages 27.9°C with a 67% precipitation probability. Wedding/Outdoor Event Score: 65/100."
— 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
August 4
28.8°C • 51% rain
Score
77
August 5
28.7°C • 54% rain
Score
74
August 18
27.5°C • 58% rain
Score
72
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 11) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nikko Worth Visiting on August 11?
Planning a trip to Nikko on August 11? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 27.9°C with a 67% historical precipitation risk.
🎉 Local Event: The date coincides with Mountain Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 976 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 August 11 recorded in the last 30 years saw temperatures hit 33.4°C in 2024, while the coldest dropped to 19.8°C in 2017.