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Weather in Hiroshima — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in Hiroshima

⛅

+25°

Partly cloudy

Feels like +30° · humidity 89%

Fri 14.8: +31° / +24°

🕐 04:25

Wind

2 km/h

UV index

Air (AQI)

30 · Good

Precipitation

25%

Humidity

89%

Pressure

1008 hPa

Sunrise / sunset

05:30 / 18:59

Sea temperature

🌊 +29°

👕 What to wear today

Warm — a T-shirt and light trousers or shorts.

Feels warmer by 5°

Weather for an activity:

🎣 fishing 🏖️ the beach 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for Hiroshima

Friday, 14 August, in Hiroshima (Japan): cloudy, light rain in places, hot. During the day the air will warm up to +31°, at night around +24°. Wind up to 6 km/h. Brief rain is possible — an umbrella won't hurt. Light summer clothing will do — a T-shirt and shorts or light trousers. The sea has warmed up to +29° — great for swimming. The sun will rise at 05:30 and set at 18:59 — daylight lasts 13 hours.

Hourly weather in Hiroshima

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in Hiroshima for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Fri 14.8

🌦️

💧 25%

+24° +31°

Morning

🌦️

+27°

Day

🌦️

+31°

Evening

🌇

+29°

Night

🌙

+24°

Light rain · precipitation 25% · wind up to 6 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Today 15.8

☁️

💧 19%

+25° +30°

Morning

🌤️

+26°

Day

☁️

+30°

Evening

🌇

+27°

Night

🌙

+25°

Overcast · precipitation 19% · wind up to 5 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tomorrow 16.8

🌦️

💧 55%

+24° +28°

Morning

⛅

+25°

Day

🌦️

+28°

Evening

🌇

+25°

Night

🌙

+24°

Drizzle · precipitation 55% · wind up to 5 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 17.8

🌦️

💧 27%

+25° +28°

Morning

🌦️

+26°

Day

🌦️

+28°

Evening

🌇

+27°

Night

🌙

+25°

Drizzle · precipitation 27% · wind up to 7 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 18.8

🌦️

💧 31%

+25° +32°

Morning

🌦️

+28°

Day

🌦️

+32°

Evening

🌇

+30°

Night

🌙

+25°

Drizzle · precipitation 31% · wind up to 9 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Wed 19.8

🌦️

💧 51%

+23° +34°

Morning

🌦️

+27°

Day

🌦️

+34°

Evening

🌇

+31°

Night

🌙

+23°

Drizzle · precipitation 51% · wind up to 10 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Thu 20.8

⛈️

💧 69%

+23° +34°

Morning

⛈️

+27°

Day

⛈️

+34°

Evening

🌇

+31°

Night

🌙

+23°

Thunderstorm · precipitation 69% · wind up to 10 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

▶

Fri 21.8

⛈️

💧 80%

+23° +27°

Morning

⛈️

+24°

Day

⛈️

+27°

Evening

🌇

+26°

Night

🌙

+23°

Thunderstorm · precipitation 80% · wind up to 12 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 22.8

☁️

💧 64%

+24° +30°

Morning

☁️

+26°

Day

☁️

+30°

Evening

🌇

+29°

Night

🌙

+24°

Overcast · precipitation 64% · wind up to 11 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 23.8

🌦️

💧 52%

+23° +31°

Morning

🌦️

+26°

Day

🌦️

+31°

Evening

🌇

+29°

Night

🌙

+23°

Drizzle · precipitation 52% · wind up to 8 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 24.8

🌦️

💧 51%

+24° +29°

Morning

🌦️

+26°

Day

🌦️

+29°

Evening

🌇

+28°

Night

🌙

+24°

Drizzle · precipitation 51% · wind up to 6 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 25.8

⛈️

💧 47%

+25° +29°

Morning

⛈️

+26°

Day

⛈️

+29°

Evening

🌇

+28°

Night

🌙

+25°

Thunderstorm · precipitation 47% · wind up to 4 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 26.8

🌦️

💧 51%

+25° +27°

Morning

🌦️

+26°

Day

🌦️

+27°

Evening

🌇

+27°

Night

🌙

+25°

Drizzle · precipitation 51% · wind up to 11 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 27.8

🌦️

💧 47%

+24° +33°

Morning

🌦️

+27°

Day

🌦️

+33°

Evening

🌇

+31°

Night

🌙

+24°

Drizzle · precipitation 47% · wind up to 13 km/h.
☀️ Very hot. Drink more water, avoid the midday sun, sunscreen is needed.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏖️ Beach

70 / 100

for sea and sun · Good

🏊 Swimming

57 / 100

water 29° · Average

🏃 Running

25 / 100

comfort for running · So-so

🧴 UV

moderate · low

☂️ Rain

25%

possible · low

✨ Stars

71 / 100

evening visibility · Good

🧺 Laundry drying

32 / 100

will dry outside · So-so

🚗 Car wash

65 / 100

no rain expected · Average

🌫️ Air quality

Good air

European AQI

PM2.5: 8PM10: 10O₃: 21NO₂: 18

The air is clean — you can walk and exercise outside.

🌅 Sun, moon and sea

Sunrise

05:30

Sunset

18:59

Golden hour

18:25

Daylight

13 h (-2 min vs yesterday)

Sea temperature

+29°

🌊 calm, waves 0.1 m.

Hiroshima climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+8°

+1°

Jan

+9°

+2°

Feb

+13°

+4°

Mar

+18°

+9°

Apr

+23°

+14°

May

+26°

+18°

Jun

+29°

+23°

Jul

+30°

+24°

Aug

+27°

+20°

Sep

+22°

+14°

Oct

+16°

+8°

Nov

+11°

+4°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Sea	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+8°	+1°	+12°	55 mm	A cold month: +8° by day, long walks get uncomfortable. 🧥 a warm jacket. The water is cold (+12°) — swimming is for the brave. This is the coldest month of the year.
February	+9°	+2°	+10°	69 mm	Cold: +9° by day, down to +2° at night — dress warmly. It's a rainy month (69 mm) — an umbrella is a must. 🧥 a warm jacket. The water is cold (+10°) — swimming is for the brave.
March	+13°	+4°	+11°	110 mm	A fresh month — +13° daytime, take a jacket for walks. Frequent rain (110 mm over the month) — keep indoor backup plans. 🧥 a warm jacket. The water is cold (+11°) — swimming is for the brave.
April	+18°	+9°	+14°	127 mm	The most pleasant season: +18° by day, comfortable all day long. One of the wettest months (127 mm): downpours can derail plans. 🙂 a sweater for the evening. The water is cold (+14°) — swimming is for the brave.
May	+23°	+14°	+18°	144 mm	One of the best times to visit: +23° by day, fresh nights. It's a rainy month (144 mm) — an umbrella is a must. 🙂 a sweater for the evening. Sea at +18° — swimmable, refreshing.
June	+26°	+18°	+22°	218 mm	Ideal weather: +26° daytime — neither hot nor cold. Frequent rain (218 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +22° — great for swimming. The longest daylight hours of the year — more time for everything.
July	+29°	+23°	+27°	254 mm	A comfortable month: +29° by day without exhausting heat. One of the wettest months (254 mm): downpours can derail plans. 😊 light summer clothing. Water at +27° — great for swimming. Statistically the wettest month of the year.
August	+30°	+24°	+29°	156 mm	Warm and comfortable: +30° by day, +24° at night. It's a rainy month (156 mm) — an umbrella is a must. 😊 light summer clothing. Water at +29° — great for swimming. This is the hottest month of the year in Hiroshima.
September	+27°	+20°	+28°	185 mm	Gentle warmth — about +27° daytime, great walking weather. Frequent rain (185 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +28° — great for swimming. Weather-wise, one of the three best months to visit.
October	+22°	+14°	+24°	110 mm	The most pleasant season: +22° by day, comfortable all day long. One of the wettest months (110 mm): downpours can derail plans. 🙂 a sweater for the evening. Water at +24° — great for swimming. Weather-wise, one of the three best months to visit.
November	+16°	+8°	+20°	72 mm	Cool: around +16° by day, you'll need a warm layer. It's a rainy month (72 mm) — an umbrella is a must. 🙂 a sweater for the evening. Sea at +20° — swimmable, refreshing. Weather-wise, one of the three best months to visit.
December	+11°	+4°	+15°	64 mm	A fresh month — +11° daytime, take a jacket for walks. Frequent rain (64 mm over the month) — keep indoor backup plans. 🧥 a warm jacket. The water is cold (+15°) — swimming is for the brave. The shortest daylight of the year — it gets dark early.

When to visit Hiroshima

✅ Recommended time to visit

🌟 Best time: September, October, November

Daytime air+16…+27°

Sea temperature+20…+28°

Precipitationoften

Why: comfortable +16…+27° by day, little rain.

⚠️ Doable, with caveats

🌤️ Shoulder season: January, February, April, May, June, August

Daytime air+8…+30°

Sea temperature+10…+29°

Precipitationoften

Why: noticeable rain risk (55–218 mm/month) — pack an umbrella and backup plans.

🔴 Not the best time

❄️ Cold season: March, July, December

Daytime air+11…+29°

Sea temperature+11…+27°

Precipitationoften

Why: cold and dark (+11…+29° by day, 10 h of daylight) — only if frost and short days don’t put you off.

Bottom line: the best time to visit Hiroshima is September – November, and the most comfortable months are September, October, November. The toughest months to visit are March, July, December: frequent rain.