Japan Hiroshima Weather in October — Climate Guide
October in Hiroshima is very-high
Hiroshima Weather in October — Quick Answer
As of 2026- Avg temp
- 23° / 14°
- Rainfall
- 100mm · 6 days
- Crowds
- Busy
As of 2026, Hiroshima in October averages a high of 23°C and low of 14°C with 100mm of rain over about 6 days. Pleasant autumn. T-shirt + light jacket.
October is very-high for Hiroshima.
BEST MONTH — perfect weather + clear skies + autumn leaves starting. Less crowded than spring.
Travel score
Hiroshima October Weather Stats
Avg High
23°C
Avg Low
14°C
Rainy Days
6
100mm total
Sunshine
7h
Daily avg
Humidity
70%
moderate
UV Index
5
Moderate
Wind
7 km/h
Gusts 18
Sea Temp
22°C
swimming chilly
Crowds
Busy
At attractions
October Sunrise & Sunset
Air Quality
PM2.5
15 μg/m³
PM10
25 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
22°C
Nighttime
14°C
Humidity and wind affect how the actual temperature feels.
Wind
7 km/h
Max gust 18 km/h
Activities Recommended for October
October Travel Pros & Cons
Pros
- 23°C ideal
- Clear skies + low rain
- Autumn leaves starting
Cons
- Hotels rising for autumn
October Events & Festivals
- Autumn leaves begin late month
Hiroshima in October — Full Picture
BEST MONTH — perfect weather + clear skies + autumn leaves starting. Less crowded than spring.
What to Wear & What to Pack
Pleasant autumn. T-shirt + light jacket.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18.7°C
9.7°C
10/mo
Summer (Jun·Jul·Aug)
30.3°C
22.3°C
10.7/mo
Autumn (Sep·Oct·Nov)
Current23°C
14°C
7.3/mo
Winter (Dec·Jan·Feb)
11°C
2.7°C
6.7/mo
Hiroshima Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 10° | 2° | 7d·50mm | 5h | 65% | 2 | Quiet | Low season | |
| 11° | 2° | 7d·60mm | 6h | 65% | 3 | Quiet | Low season | |
| March (Best) | 14° | 5° | 10d·110mm | 7h | 65% | 4 | Very busy | Peak |
| April (Best) | 19° | 10° | 10d·130mm | 8h | 65% | 6 | Very busy | Peak |
| 23° | 14° | 10d·130mm | 8h | 70% | 7 | Very busy | Peak | |
| 27° | 19° | 13d·230mm | 5h | 75% | 7 | Moderate | Shoulder | |
| 31° | 24° | 11d·250mm | 6h | 75% | 9 | Busy | Peak | |
| 33° | 24° | 8d·130mm | 8h | 73% | 10 | Very busy | Peak | |
| 29° | 20° | 10d·200mm | 6h | 75% | 6 | Moderate | Shoulder | |
| October (Best) | 23° | 14° | 6d·100mm | 7h | 70% | 5 | Busy | Peak |
| November (Best) | 17° | 8° | 6d·80mm | 5h | 65% | 3 | Busy | Peak |
| 12° | 4° | 6d·50mm | 5h | 65% | 2 | Moderate | Shoulder |
View Other Months
Hiroshima October Hotel Picks
Frequently Asked Questions
Is October a good time to visit Hiroshima?
Hiroshima in October is very-high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Hiroshima in October?
Hiroshima October averages a high of 23°C and a low of 14°C.
Does it rain much in Hiroshima in October?
Hiroshima October averages 100mm of rainfall over about 6 rainy days.
What should I wear in Hiroshima in October?
Pleasant autumn. T-shirt + light jacket.
What time are sunrise and sunset in Hiroshima in October?
Hiroshima October sunrise is 06:25 and sunset is 17:25, with 11h of daylight.
What's the air quality like in Hiroshima in October?
Hiroshima October air quality (AQI) averages 42, rated Good. PM2.5 averages 15μg/m³.
What activities are recommended in Hiroshima in October?
In October, Hiroshima is great for Peace Park, Mt. Misen Miyajima, Hiroshima Castle.
Is October peak season in Hiroshima?
Hiroshima October crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Hiroshima
View Other Months
Planning a October trip to Hiroshima?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.