Discover the best time of year, based on historical climate, temperature, and precipitation.
The best time to visit Hiroshima is May, October, November, when the weather, flight prices, and crowds align. — consistent weather climate
🌧Rainy
| Score | 27 | 28 | 43 | 68 | 73 | 60 | 38 | 29 | 60 | 80 | 72 | 37 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cool & rainy | Cool & rainy | Rainy | Hot & rainy | Hot & rainy | Rainy | Humid | Mild | Cold |
| Temperature | 1–9°C | 1–10°C | 4–14°C | 9–18°C | 13–22°C | 18–25°C | 23–29°C | 24–31°C | 20–27°C | 14–22°C | 8–17°C | 3–11°C |
| Feels like | -3–5°C | -2–7°C | 1–12°C | 7–18°C | 13–23°C | 19–28°C | 27–34°C | 28–36°C | 22–31°C | 13–22°C | 6–15°C | 0–8°C |
| Precipitation | 62mm 8 days | 68mm 8 days | 118mm 10 days | 164mm 10 days | 144mm 10 days | 220mm 14 days | 293mm 19 days | 208mm 14 days | 208mm 14 days | 107mm 8 days | 75mm 6 days | 59mm 7 days |
| Sunshine | 7.2h ☀︎ 71% | 8.0h ☀︎ 73% | 8.5h ☀︎ 71% | 8.7h ☀︎ 66% | 9.0h ☀︎ 64% | 7.0h ☀︎ 49% | 7.6h ☀︎ 54% | 10.4h ☀︎ 77% | 8.0h ☀︎ 64% | 8.2h ☀︎ 72% | 8.0h ☀︎ 77% | 7.2h ☀︎ 73% |
| Wind | NW · 16 km/h | N · 16 km/h | N · 16 km/h | N · 15 km/h | S · 14 km/h | S · 13 km/h | S · 14 km/h | S · 14 km/h | NE · 14 km/h | N · 14 km/h | N · 13 km/h | NW · 15 km/h |
| Humidity (%) | 71% | 70% | 73% | 74% | 76% | 83% | 86% | 79% | 80% | 75% | 76% | 72% |
| Day length | 10.1h | 10.9h | 12.0h | 13.1h | 14.0h | 14.4h | 14.2h | 13.4h | 12.4h | 11.3h | 10.4h | 9.9h |
| Tourist Crowds | Low season | Low season | High season | High season | High season | Shoulder season | Shoulder season | High season | High season | High season | High season | Shoulder season |
Held annually on August 6th, this solemn ceremony commemorates the atomic bombing of Hiroshima. Despite the hot and humi…
From late March to early April, Hiroshima's parks like Peace Memorial Park and Hijiyama Park burst with cherry blossoms.…
From mid-November to early January, Hiroshima transforms with dazzling winter illuminations, primarily along Peace Boule…
This vibrant festival takes place during Golden Week in early May, celebrating peace and nature with parades, concerts,…
Held annually in late October, this festival showcases Hiroshima's diverse culinary delights, from local oysters to okon…
In November, the historic Shukkei-en Garden becomes a stunning display of autumn foliage (koyo). With pleasant, crisp we…
This traditional festival, held for three days in mid-November, prays for business prosperity at Ebisu Shrine. The autum…
Hiroshima’s calendar is defined by a striking contradiction: its busiest, most crowded moment coincides with its most physically punishing heat, while its most flawless season slips by in relative calm.
Hiroshima is a city built on water and resilience, where six channels of the Ōta River carve a coastal delta into distinct islands tied together by wide bridges. Most travelers arrive carrying the solemn weight of the twentieth century, drawn to the quiet expanse of Peace Memorial Park and the skeletal dome that anchors it. Yet what takes first-time visitors by surprise is how vibrant, green, and thoroughly alive modern Hiroshima feels. Wide tree-lined boulevards give it an airy openness uncommon in older Japanese castle towns, and the constant presence of moving water tempers the urban sprawl. When you choose to step onto these riverbanks dictates whether you encounter a reflective sanctuary bathed in gentle light or a crowded pilgrimage under a relentless summer sun.
October is the undisputed sweet spot in Hiroshima. The suffocating damp of summer disappears completely, replaced by crystal skies, dry breezes, and afternoons where the air hovers at an effortless room temperature. You can spend an entire day crisscrossing the bridges on foot or cycling between the delta islands without breaking a sweat, wrapped only in light sleeves.
While tour groups thin out considerably after the early autumn rush elsewhere in Japan, Hiroshima takes to the outdoors. Late October brings the Hiroshima Food Festival, when the aroma of savory okonomiyaki, grilled regional oysters, and bubbling dashi broth sweeps through open plazas. It is the one month where the city's outdoor ease, culinary energy, and comfortable climate align in absolute perfection.
By November, a sharp, clean chill arrives from the surrounding mountains, bringing with it a flood of visitors eager to catch the spectacle of autumn foliage. The historic Shukkei-en garden becomes a concentrated explosion of scarlet and ochre maples reflecting off quiet carp ponds, drawing steady streams of photographers and strollers.
Even as the mercury drops, the evenings pick up energy. Mid-month sees locals crowding around Ebisu Shrine for the Toka-Ebisu Festival, trading for prosperity charms in a burst of neighborhood camaraderie. Shortly after, the winter illumination known as Hiroshima Dreamination begins, turning the long stretch of Peace Boulevard into a glowing corridor of light sculptures. Pack warm layers: once the sun sets behind the hills, the river winds cut right through thin coats.
Winter strips the riverside willows bare and empties the parks. Temperatures often linger in the single digits, and biting winds sweep down the channels of the Ōta River. Yet this cold, quiet window holds a profound appeal for those who prefer solitary contemplation. Moving through Peace Memorial Park on a gray January morning—without tour groups or the chatter of crowds—lends the monuments the quiet gravity they deserve.
December retains a festive evening hum as Hiroshima Dreamination continues to blaze along Peace Boulevard, but January and February settle into a deep slumber. Days are crisp and sunny, and the local oyster harvests reach their peak richness in the city's lively covered shopping arcades. If you do not mind bundling into a heavy wool coat, it is an economical, peaceful time to explore.
Spring unfolds gradually. March can begin in a brisk, damp haze, but by the final days of the month, cherry blossom boughs break open along the riverbanks. Hijiyama Park and the perimeter of Peace Memorial Park turn into frothy clouds of pink and white, filled with locals spreading blue tarps for hanami picnics beneath the falling petals.
April brings balanced, comfortable warmth and clear walking weather, before May kicks off the early summer enthusiasm. During Golden Week, the Hiroshima Flower Festival floods Peace Boulevard with vibrant floral floats, street musicians, and parades celebrating peace and nature. Late spring days are lush, balmy, and remarkably pleasant, though the impending rainy season begins to hint at the humidity to come.
Summer in the delta is demanding. June and July bring the monsoon front, soaking the city in drenching downpours that frequently disrupt outdoor plans, followed by a surge of humid, tropical heat. By late July, the city feels like an open-air sauna, with thick air hanging heavy over the tidal flats.
Yet August is the month that pulls the absolute largest crowds of the entire year. On August 6th, tens of thousands gather from around the world at Peace Memorial Park for the solemn Peace Memorial Ceremony, confronting apparent temperatures in the mid-thirties to offer prayers, strike the peace bell, and float paper lanterns down the darkening river at dusk. It is an unforgettable, deeply moving cultural experience, but travelers must understand what they are stepping into: this is an act of communal witness under punishing heat, not a casual sightseeing weekend.
September is an awkward transition. The sheer crush of August evaporates, leaving the riverbanks and tram cars noticeably quieter. However, the tropical heat refuses to break immediately, and the threat of late-season typhoons can bring abrupt squalls and gray skies off the Seto Inland Sea.
By late September, the nights begin to cool down, offering a first taste of the crystalline autumn just ahead. If you travel now, you will encounter shorter lines and easier movement through museums, provided you stay flexible around passing rainy afternoons.