May 10 is generally a great time to visit Hiroshima. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 22°C weather. Hiroshima is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Hiroshima
Currency
JPY
¥ Japanese yen
Language
Japanese
Driving
Left side
Connect
Public wireless LAN is available at publ...
Safety
Very High Safety
GPI: 1.336
Hiroshima Weather Forecast for May 10
"Mild & Comfortable. Expect average highs of 21.5°C. 23% chance of rain."
What to Wear in Hiroshima in May
Based on historical data for May 10, Hiroshima typically experiences temperatures between 12.3°C and 21.5°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (23% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Hiroshima
Smart Suitcase
- Light Jacket
- Long Pants
Average High
21.5°C
Daytime Peak
Average Low
12.3°C
Nighttime Low
Feels Like
21.7°C
☀️ Feels accurate
Rain Chance
23%
Avg 3.3mm if it rains
Cloud Cover
65%
Overcast
Pressure
1013.4 hPa
Medium volatility
Hiroshima 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
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.4°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
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Japan
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~29
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Hiroshima
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:13
☀️ Noon
12:07
🌇 Sunset
19:02
⏱️ Daylight
13h 48m
Wind Speed
12.6 km/h
Gentle breeze
Sunshine
8.7 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Hiroshima
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Hiroshima
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
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, Hiroshima on May 10 averages 21.5°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Hiroshima 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 10) in other destinations
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📍 Is Hiroshima Worth Visiting on May 10?
Planning a trip to Hiroshima on May 10? 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 21.5°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 29 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 17.1°C (refreshing tonic). Wave conditions are generally lake-like with heights around 0.21m.
📊 Historical Extremes: The hottest May 10 recorded in the last 30 years saw temperatures hit 23.4°C in 2025, while the coldest dropped to 7.1°C in 2024.