Best time to visit Hiroshima
The best time to visit Hiroshima is April–May and October–November, judged on twenty years of weather records and the events worth going for.
Hiroshima, Hiroshima, Japan
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 7.6 °C / 46 °F | 0.2 °C / 32 °F | 54 mm / 2.1 in | neither best nor good |
| February | 8.9 °C / 48 °F | 0.9 °C / 34 °F | 72 mm / 2.9 in | neither best nor good |
| March | 13.1 °C / 56 °F | 3.8 °C / 39 °F | 116 mm / 4.6 in | good month |
| April | 18.1 °C / 65 °F | 8.3 °C / 47 °F | 131 mm / 5.2 in | best month |
| May | 22.6 °C / 73 °F | 13.4 °C / 56 °F | 141 mm / 5.5 in | best month |
| June | 25.4 °C / 78 °F | 18.3 °C / 65 °F | 217 mm / 8.6 in | neither best nor good |
| July | 29.2 °C / 85 °F | 22.8 °C / 73 °F | 262 mm / 10.3 in | neither best nor good |
| August | 31 °C / 88 °F | 23.8 °C / 75 °F | 196 mm / 7.7 in | neither best nor good |
| September | 27.4 °C / 81 °F | 19.8 °C / 68 °F | 175 mm / 6.9 in | neither best nor good |
| October | 22 °C / 72 °F | 13.2 °C / 56 °F | 104 mm / 4.1 in | best month |
| November | 15.9 °C / 61 °F | 7.1 °C / 45 °F | 74 mm / 2.9 in | best month |
| December | 9.6 °C / 49 °F | 2.1 °C / 36 °F | 68 mm / 2.7 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: good
- AApril: best
- MMay: best
- JJune: neither
- JJuly: neither
- AAugust: neither
- SSeptember: neither
- OOctober: best
- NNovember: best
- DDecember: neither
- Best
- April–May, October–November
- Good
- March
Spring (March through May) and autumn (October-November) bring mild-to-warm days, plenty of sun and manageable rain, making them the best times to explore Hiroshima on foot. Winter (December-February) is a touch too cool, while June through September turns hot, humid and heavy with rainy-season and typhoon-season downpours that mostly fall in the afternoon.
Why these months
March · good
In its favour: share of daylight that is sunny 73%, average daily high 13.1 °C / 56 °F, relative humidity 67%.
Against: precipitation 116 mm / 4.6 in, wet days 11.7 days, days with heavy rain 4.2 days, share of rain falling in the daytime 41%, feels like (high) 10.5 °C / 51 °F, average daily low 3.8 °C / 39 °F.
Also on: Big Wave winter ice rink, Hina matsuri (Doll Festival), Oyster season, Plum blossoms.
April · best
In its favour: feels like (high) 16.7 °C / 62 °F, average daily high 18.1 °C / 65 °F, share of daylight that is sunny 71%, relative humidity 65%, average daily low 8.3 °C / 47 °F.
Against: precipitation 131 mm / 5.2 in, days with heavy rain 4.2 days, wet days 10.8 days, share of rain falling in the daytime 42%.
Also on: Big Wave winter ice rink, Cherry blossom hanami at Hiroshima Castle.
Watch out for: Golden Week crowds.
May · best
In its favour: feels like (high) 22.7 °C / 73 °F, average daily high 22.6 °C / 73 °F, share of daylight that is sunny 70%, average daily low 13.4 °C / 56 °F, relative humidity 67%.
Against: precipitation 141 mm / 5.5 in, days with heavy rain 4.2 days, wet days 9.8 days, share of rain falling in the daytime 44%.
Also on: Children's Day free admission, Greenery Day free admission.
Watch out for: Golden Week crowds.
October · best
In its favour: feels like (high) 21.6 °C / 71 °F, average daily high 22 °C / 72 °F, share of daylight that is sunny 74%, average daily low 13.2 °C / 56 °F, relative humidity 72%.
Against: precipitation 104 mm / 4.1 in, days with heavy rain 3.1 days, wet days 8.6 days, share of rain falling in the daytime 43%.
Also on: Oyster season, Sake Festival (Saijo).
November · best
In its favour: share of daylight that is sunny 78%, feels like (high) 13.8 °C / 57 °F, precipitation 74 mm / 2.9 in, average daily high 15.9 °C / 61 °F, wet days 7.9 days, days with heavy rain 2.3 days, average daily low 7.1 °C / 45 °F, relative humidity 72%.
Also on: Big Wave winter ice rink, Culture Day free admission, Labor Thanksgiving Day free admission, Oyster season.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is 女鹿平温泉めがひらスキー場, Megahiraonsen Megahira Ski Area, 30 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | 3.7 °C | 5.3 °C | 10.5 °C | 16.7 °C | 22.7 °C | 27.5 °C | 33.3 °C | 35.3 °C | 29.8 °C | 21.6 °C | 13.8 °C | 6.2 °C |
| Days with heavy rain | 1.6 days | 2.6 days | 4.2 days | 4.2 days | 4.2 days | 6.8 days | 7.2 days | 4.7 days | 5.3 days | 3.1 days | 2.3 days | 2.1 days |
| Time rain usually falls | 4 am | 3 am | 1 pm | 11 am | 1 pm | 3 pm | 3 pm | 3 pm | 3 pm | 3 pm | 10 am | 4 pm |
| Sunshine per day | 7.6 h | 8.1 h | 8.7 h | 9.2 h | 9.7 h | 8.5 h | 9.4 h | 10.4 h | 8.9 h | 8.4 h | 8.1 h | 7.4 h |
| Relative humidity | 70% | 68% | 67% | 65% | 67% | 76% | 79% | 75% | 75% | 72% | 72% | 72% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 12 µg/m³ | 11.6 µg/m³ | 17 µg/m³ | 17.3 µg/m³ | 14.7 µg/m³ | 16.6 µg/m³ | 11.2 µg/m³ | 10.2 µg/m³ | 9.4 µg/m³ | 8.2 µg/m³ | 10.7 µg/m³ | 10.9 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 20.5 µg/m³ | 20.4 µg/m³ | 28.2 µg/m³ | 26.8 µg/m³ | 25 µg/m³ | 29.6 µg/m³ | 19.8 µg/m³ | 17.5 µg/m³ | 16.1 µg/m³ | 13.5 µg/m³ | 17.1 µg/m³ | 19.2 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.
Events and seasons
What the weather records cannot show. A major event can lift a month to good or best. The warnings are there to help you plan, and never count against a month.
Reasons to go
- Big Wave winter ice rink
January, February, March, April, November and December
- Oyster season
January, February, March, October, November and December
- New Year temple visits
January and December
- Plum blossoms
March, dates vary from year to year
- Hina matsuri (Doll Festival)
3 March
- Cherry blossom hanami at Hiroshima Castle
1–10 April, dates vary from year to year
- Greenery Day free admission
4 May
- Children's Day free admission
5 May
- Family Pool (open-air water park)
1 July–31 August
- Big Wave summer swimming
1 July–10 September
- Peace Memorial Ceremony
6 August
- Respect-for-the-Aged Day free admission
September, dates vary from year to year
- Sake Festival (Saijo)
October
- Culture Day free admission
3 November
- Labor Thanksgiving Day free admission
23 November
Worth knowing before you go
- New Year closures
29 December–3 January
- Golden Week crowds
29 April–5 May
- Obon
13–16 August
- Christmas Eve dinner reservations
24 December
- Christmas Day KFC orders
25 December
World Heritage sites nearby
UNESCO World Heritage sites within 25 km, nearest first.
- Hiroshima Peace Memorial
Less than 1 km away
- Itsukushima Shrine
17 km away