Our verdict
The best time to visit Hiroshima is March-May
In the summer months, temperatures tend to get to a maximum of around 31℃ (89℉). The weather at night in the winter, which is around January-time, can get down to a minimum of -3℃ (27℉).
The longest days between sunrise and sunset in Hiroshima are usually in August, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. To stay dry, avoid travelling to Hiroshima in July – It’s the wettest month of the year.
Keep reading to find out when the best times to travel to Hiroshima are for whatever trip you’re planning. By the time you finish, you’ll have all the info you need, and you’ll be ready to start booking. Don’t know where to look or who to book with? Don’t stress! We’ve hand-picked our favourite online travel tools we use, know and love so you can rest assured you’re in safe hands. Happy reading!
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Hiroshima seasons
Before you continue, it’s important to know when the seasons are in Hiroshima as they might be different to yours depending on where in the world you’re travelling from. Hiroshima is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Hiroshima
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Hiroshima for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Hiroshima climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Hiroshima for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Hiroshima in January
- Average temperature: 3℃ (38℉)
- Average high temperature: 6℃ (44℉)
- Average low temperature: 0℃ (32℉)
- Average humidity: 79%
- Average sunny days: 12 days
- Average rainfall: 42mm (2") over 13 days
- Average snow days: 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Hiroshima in February
- Average temperature: 4℃ (39℉)
- Average high temperature: 8℃ (46℉)
- Average low temperature: 1℃ (33℉)
- Average humidity: 78%
- Average sunny days: 12 days
- Average rainfall: 49mm (2") over 13 days
- Average snow days: 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Hiroshima in March
- Average temperature: 7℃ (45℉)
- Average high temperature: 12℃ (53℉)
- Average low temperature: 3℃ (38℉)
- Average humidity: 76%
- Average sunny days: 15 days
- Average rainfall: 82mm (3") over 14 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Hiroshima in April
- Average temperature: 12℃ (53℉)
- Average high temperature: 16℃ (62℉)
- Average low temperature: 7℃ (45℉)
- Average humidity: 75%
- Average sunny days: 14 days
- Average rainfall: 96mm (4") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in April, make sure you pack a warm jacket or coat.
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Hiroshima in May
- Average temperature: 17℃ (63℉)
- Average high temperature: 22℃ (71℉)
- Average low temperature: 12℃ (54℉)
- Average humidity: 74%
- Average sunny days: 17 days
- Average rainfall: 87mm (3") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in May, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Hiroshima in June
- Average temperature: 20℃ (69℉)
- Average high temperature: 25℃ (76℉)
- Average low temperature: 16℃ (62℉)
- Average humidity: 82%
- Average sunny days: 8 days
- Average rainfall: 137mm (5") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in June, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Hiroshima in July
- Average temperature: 25℃ (76℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 84%
- Average sunny days: 6 days
- Average rainfall: 169mm (7") over 22 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in July, make sure you pack t-shirts and light clothing.
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Hiroshima in August
- Average temperature: 26℃ (78℉)
- Average high temperature: 30℃ (86℉)
- Average low temperature: 22℃ (71℉)
- Average humidity: 81%
- Average sunny days: 7 days
- Average rainfall: 111mm (4") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in August, make sure you pack t-shirts and light clothing.
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Hiroshima in September
- Average temperature: 21℃ (71℉)
- Average high temperature: 26℃ (78℉)
- Average low temperature: 18℃ (64℉)
- Average humidity: 81%
- Average sunny days: 10 days
- Average rainfall: 110mm (4") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in September, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
Hiroshima in October
- Average temperature: 16℃ (61℉)
- Average high temperature: 20℃ (69℉)
- Average low temperature: 13℃ (55℉)
- Average humidity: 81%
- Average sunny days: 16 days
- Average rainfall: 91mm (4") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in October, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Hiroshima in November
- Average temperature: 11℃ (51℉)
- Average high temperature: 14℃ (58℉)
- Average low temperature: 7℃ (45℉)
- Average humidity: 81%
- Average sunny days: 15 days
- Average rainfall: 45mm (2") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in November, make sure you pack a warm jacket or coat.
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Hiroshima in December
- Average temperature: 5℃ (42℉)
- Average high temperature: 8℃ (47℉)
- Average low temperature: 3℃ (37℉)
- Average humidity: 81%
- Average sunny days: 10 days
- Average rainfall: 61mm (2") over 16 days
- Average snow days: 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Hiroshima in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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