May 25 is generally a great time to visit Hakone. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 22°C weather. Hakone is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Hakone
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Safety
Very High Safety
GPI: 1.336
Hakone Weather Forecast for May 25
"Mild & Comfortable. Expect average highs of 21.7°C. 32% chance of rain."
What to Wear in Hakone in May
Based on historical data for May 25, Hakone typically experiences temperatures between 15.3°C and 21.7°C. We recommend packing t-shirt, light clothing, 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 Hakone
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
21.7°C
Daytime Peak
Average Low
15.3°C
Nighttime Low
Feels Like
22°C
☀️ Feels accurate
Rain Chance
32%
Avg 4.2mm if it rains
Cloud Cover
76%
Overcast
Pressure
1011.8 hPa
Medium volatility
Hakone Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 96% 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
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
18.3°C
Noticeable
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Japan
Flight Traffic
High
91/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~631
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Hakone
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:34
☀️ Noon
11:41
🌇 Sunset
18:48
⏱️ Daylight
14h 13m
Wind Speed
10.8 km/h
Light breeze
Sunshine
9.1 hrs
Direct Sun (Cloud-free)
Humidity
81%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Hakone
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Hakone
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
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 acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Volcanic Activity
Nearest: Mount Fuji
37.3km away
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, Hakone on May 25 averages 21.7°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 92/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Hakone Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
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Same date (May 25) in other destinations
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📍 Is Hakone Worth Visiting on May 25?
Planning a trip to Hakone on May 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 21.7°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 631 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 May 25 recorded in the last 30 years saw temperatures hit 25.1°C in 2025, while the coldest dropped to 13.1°C in 2023.