30YearWeather
Hiroshima, July 9
Hiroshima street view during July
Historical Weather Analysis

Hiroshima Weather on July 9 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

rain

28.5°C

High

22.7°C

Low

47%

Rain

🔥 Feels like 34.3°C (humidity)

rain
IT'S A GAMBLE
Peak Season

July 9 sees frequent showers in Hiroshima. Historical data shows a 47% chance of rain, so pack accordingly. Temperatures average 29°C. Expect a bustling atmosphere in Hiroshima right now—this is when the city truly comes alive with visitors.

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 July 9

"Warm & Sunny. Expect average highs of 28.5°C. 47% chance of rain."

What to Wear in Hiroshima in July

Based on historical data for July 9, Hiroshima typically experiences temperatures between 22.7°C and 28.5°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 47% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Hiroshima

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing
  • Umbrella

Average High

extreme-hot

28.5°C

Daytime Peak

Average Low

extreme-cold

22.7°C

Nighttime Low

Feels Like

partly-cloudy-day

34.3°C

🔥 Heat index effect

Rain Chance

rain

47%

Avg 7.1mm if it rains

Cloud Cover

cloudy

79%

Overcast

Pressure

pressure

1008.6 hPa

Low volatility

Hiroshima Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

80%Highly Predictable

Based on 10 years of data

Temperature
±2.9°CModerate
Precipitation
24-80%Unpredictable

🎯 This date historically delivers consistent weather 80% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

4.1Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

05:00 - 10:00

Afternoon

16:00 - 19:00

Time to Sunburn

Type I-II

🔴 20 min to burn

Type III-IV

🟡 30 min to burn

Type V-VI

🟢 50 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

48Poor
TemperatureHot
HumidityMuggy
WindLight Breeze

Dew Point

25.7°C

Humid/Sticky

Heat Index

34.3°C

Feels hotter

😕 Best outdoor time:
Morning hours (before 11 AM)

Marine Conditions

Water Temp
26.2°C
🛁 Tropical Bath
Avg daily surface temperature
Surf Conditions
0.22m
🌊 Lake-like
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

✅ Excellent Swimming Conditions

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in Japan

Flight Traffic

High

93/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~27

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Hiroshima

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

05:06

☀️ Noon

12:16

🌇 Sunset

19:26

⏱️ Daylight

14h 20m

Golden Hour
Morning05:06 - 05:42
18:49 - 19:26Evening

Wind Speed

wind

12.4 km/h

Gentle breeze

Sunshine

clear-day

8.4 hrs

Direct Sun (Cloud-free)

Humidity

humidity

85%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Hiroshima

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in Hiroshima

Travel Comfort Index

Real-time tourism conditions

Weather Quality

⛅ Good

62/100

Tourist Crowds

🔴 Very Busy

95/100

Price Level

💰💰💰 Expensive

95/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1008.6 hPa
Volatility:Low
Migraine RiskLow

Stable conditions. Low risk of headaches.

Joint Pain RiskMedium

Mild discomfort possible for arthritic conditions.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
62AQI
Moderate
PM2.5 Concentration25.4 µg/m³

Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.

Regional Safety Profile

Medium

Seismic Activity

Moderate seismic activity. Occasional tremors possible.

Total events (30y):55
In Jul (30y):3
Last in Jul:2021-07-07
💡 Occasional tremors possible. Know your hotel's evacuation route.
Very High

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 July 9 averages 28.5°C with a 47% precipitation probability. Wedding/Outdoor Event Score: 78/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Hiroshima Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2025
34.4°C
Coldest
2019
20.6°C
Rainiest
2023
41.9mm

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 (July 9) in other destinations

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📍 Is Hiroshima Worth Visiting on July 9?

Planning a trip to Hiroshima on July 9? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 28.5°C with a 47% historical precipitation risk.

✈️ Travel Logistics: Approximately 27 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 26.2°C (tropical bath). Wave conditions are generally lake-like with heights around 0.22m.

📊 Historical Extremes: The hottest July 9 recorded in the last 30 years saw temperatures hit 34.4°C in 2025, while the coldest dropped to 20.6°C in 2019.

Hiroshima Weather FAQ