30YearWeather
Hiroshima, April 25
Hiroshima street view during April
Historical Weather Analysis

Hiroshima Weather on April 25 — Best Time to Visit?

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

cloudy

19.3°C

High

10°C

Low

26%

Rain

🌤️ Feels like 19.3°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

April 25 is generally a great time to visit Hiroshima. While there is a slight chance of rain (26%), showers are usually brief. Expect comfortable 19°C weather. 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 April 25

"Mild & Comfortable. Expect average highs of 19.3°C. 26% chance of rain."

What to Wear in Hiroshima in April

Based on historical data for April 25, Hiroshima typically experiences temperatures between 10°C and 19.3°C. We recommend packing light jacket, long pants to stay comfortable. With a 26% 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

  • Light Jacket
  • Long Pants

Average High

extreme-hot

19.3°C

Daytime Peak

Average Low

extreme-cold

10°C

Nighttime Low

Feels Like

partly-cloudy-day

19.3°C

🌤️ Feels accurate

Rain Chance

rain

26%

Avg 2.5mm if it rains

Cloud Cover

cloudy

60%

Overcast

Pressure

pressure

1014.3 hPa

Medium volatility

Hiroshima Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

89%Highly Predictable

Based on 10 years of data

Temperature
±3.1°CModerate
Precipitation
13-39%Predictable

🎯 This date historically delivers consistent weather 89% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

4.3Moderate
036811+

Protection Needed

SPF 30 recommended

Safe Sun Windows
Morning

05:00 - 10:00

Afternoon

16:00 - 18:00

Time to Sunburn

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?

84Excellent
TemperatureMild
HumidityMuggy
WindLight Breeze

Dew Point

14.3°C

Pleasant

Heat Stress

Low

No heat warning

😊 Best outdoor time:
Any time during daylight hours

Marine Conditions

Water Temp
15.6°C
🥶 Polar Plunge
Avg daily surface temperature
Surf Conditions
0.15m
🌊 Lake-like
Max daily wave height
Advisories

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

05:28

☀️ Noon

12:09

🌇 Sunset

18:50

⏱️ Daylight

13h 21m

Golden Hour
Morning05:28 - 06:02
18:15 - 18:50Evening

Wind Speed

wind

13 km/h

Gentle breeze

Sunshine

clear-day

8.7 hrs

Direct Sun (Cloud-free)

Humidity

humidity

73%

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

79/100

Tourist Crowds

🟡 Busy

70/100

Price Level

💰💰 Moderate

75/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1014.3 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

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 Apr (30y):8
Last in Apr:2018-04-08
💡 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 April 25 averages 19.3°C with a 26% precipitation probability. Wedding/Outdoor Event Score: 95/100."

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

Hiroshima Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2019
22.6°C
Coldest
2020
5.4°C
Rainiest
2023
37.9mm

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 (April 25) in other destinations

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📍 Is Hiroshima Worth Visiting on April 25?

Planning a trip to Hiroshima on April 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 19.3°C with a 26% 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 15.6°C (polar plunge). Wave conditions are generally lake-like with heights around 0.15m.

📊 Historical Extremes: The hottest April 25 recorded in the last 30 years saw temperatures hit 22.6°C in 2019, while the coldest dropped to 5.4°C in 2020.

Hiroshima Weather FAQ