Hiroshima & Miyajima→
Station: HiroshimaHiroshima, Miyajima, Itsukushima Shrine, Atomic Bomb Dome
High
32.8℃
Low
25.1℃
- Precip.
- 131.4mm
- Sunshine
- 207h
- Sunset
- 18:59
Highs around 33°C. Explore Miyajima in the cool of the morning
Chugoku & Shikoku Weather Guide
Chugoku & Shikoku Weather in August: What to Wear & Expect
August is the hottest month of the year in Chugoku & Shikoku. Hiroshima's high is 32.8°C and Okayama's 33.3°C, and nights only drop to around 25°C, so you need to be on guard against heatstroke. In Shikoku, summer festivals follow one after another: Kochi's Yosakoi Festival on the 9th–12th and Tokushima's Awa Odori on the 12th–15th. During Obon, transport gets crowded, and typhoons sometimes approach.
- Hiroshima high
- 32.8℃
- Hiroshima low
- 25.1℃
- Hiroshima rainfall
- 131.4mm
- Hiroshima sunset
- 18:59
Overview
Chugoku & Shikoku in August: Key Points
- ✓Hiroshima's high is 32.8°C. The hottest month of the year
- ✓The Yosakoi Festival is August 9–12, and the Awa Odori usually August 12–15
- ✓Transport and accommodation are crowded during Obon
- ✓Typhoons sometimes approach. Iya is relatively cool, with highs around 30°C
By Area
August Weather by Area
Temperature, precipitation, snow and sunshine are climate normals (1991-2020). Sunset is for August 15.
Onomichi & Shimanami Kaido→
Station: IkuchijimaOnomichi, Shimanami Kaido, Ikuchijima, Imabari
High
31.9℃
Low
24.0℃
- Precip.
- 89.5mm
- Sunshine
- 221h
- Sunset
- 18:57
Highs around 32°C. Start cycling early in the morning and stay hydrated
Okayama & Kurashiki→
Station: OkayamaOkayama, Kurashiki Bikan Historical Quarter, Okayama Korakuen, Okayama Castle
High
33.3℃
Low
24.6℃
- Precip.
- 97.2mm
- Sunshine
- 203h
- Sunset
- 18:54
Highs around 33°C. An evening stroll in the Kurashiki Bikan Historical Quarter is recommended
Izumo & Matsue→
Station: MatsueMatsue, Izumo Taisha, Matsue Castle, Lake Shinji
High
31.6℃
Low
23.8℃
- Precip.
- 129.6mm
- Sunshine
- 201h
- Sunset
- 18:59
Highs around 32°C. Good for sunsets and cool evenings by Lake Shinji
Tottori→
Station: TottoriTottori, Tottori Sand Dunes, Uradome Coast, Mt. Daisen
High
32.6℃
Low
23.3℃
- Precip.
- 128.6mm
- Sunshine
- 204h
- Sunset
- 18:54
Highs around 33°C. Visit the dunes in the morning or evening. The sand is hot, so shoes are a must
Hagi, Tsunoshima & Akiyoshidai→
Station: HagiHagi, Tsunoshima, Akiyoshidai, Kintaikyo Bridge
High
31.1℃
Low
23.8℃
- Precip.
- 178mm
- Sunshine
- 206h
- Sunset
- 19:04
Peak beach season at Tsunoshima. Hagi highs around 31°C
Takamatsu, Naoshima & Shodoshima→
Station: TakamatsuTakamatsu, Naoshima, Shodoshima, Kotohiragu, Ritsurin Garden
High
33.0℃
Low
25.1℃
- Precip.
- 106mm
- Sunshine
- 221h
- Sunset
- 18:53
Highs around 33°C. Take good sun precautions when traveling between islands
Tokushima, Naruto & Iya→
Station: TokushimaTokushima, Naruto Whirlpools, Iya Vine Bridge, Oboke
High
32.3℃
Low
24.9℃
- Precip.
- 193mm
- Sunshine
- 231h
- Sunset
- 18:51
Awa Odori on the 12th–15th. Iya highs around 30°C, mornings 19°C
Matsuyama & Dogo Onsen→
Station: MatsuyamaMatsuyama, Dogo Onsen, Matsuyama Castle, Uchiko
High
32.6℃
Low
24.6℃
- Precip.
- 99mm
- Sunshine
- 218h
- Sunset
- 18:57
Highs around 33°C. Lively with the Matsuyama Yakyuken Odori
Kochi & Shimanto→
Station: KochiKochi, Katsurahama Beach, Kochi Castle, Shimanto River
High
32.1℃
Low
24.5℃
- Precip.
- 284.1mm
- Sunshine
- 204h
- Sunset
- 18:54
Yosakoi Festival on the 9th–12th. Keep an eye on typhoon information
What to Wear
What to Wear in Chugoku & Shikoku in August
Tops
Short sleeves in quick-drying, breathable fabrics
Outerwear
A light layer for air conditioning
Bottoms
Lightweight pants or skirts, or shorts
Shoes
Breathable sneakers; socks and shoes on the dunes
Accessories
Hat, parasol, sunscreen, something to drink and a handheld fan
Watching festivals means spending hours in crowds. You'll sweat, so carry a change of clothes and plenty to drink.
Good to Know
Good to Know
The month to be most careful about heatstroke
Avoid spending long periods outdoors during the day, and take in water and salt frequently. If you start to feel unwell, rest in a cool place right away.
Festivals and Obon are extremely crowded
During the Awa Odori and Yosakoi Festival and the Obon holidays, accommodation and transport are both extremely crowded. Book your stay and travel early.
Check typhoon information
Typhoons can approach in August and September. Ferries and flights may be suspended and bridges closed, so check the weather forecast during your trip.
Visit the Tottori Sand Dunes in the morning or evening
The dunes have no shade, and the sand gets very hot in strong sun. Go in the cool of the morning or in the evening, when you can watch the sun set over the Sea of Japan.
Events
August Events & Highlights
Kochi's summer festival, danced with naruko clappers in hand. Around 200 teams and some 20,000 dancers perform at venues around the city.
Read the guide：Yosakoi Festival →Tours & tickets for this eventPR
- PRKlookKochi Hirome Market 1.5-Hour Private Food TourExplore Hirome Market with an English-speaking guide and sample Kochi flavorsView on Klook
- PRKlookKochi Castle & Makino Botanical Garden Half-Day History and Culture TourA guided tour meeting at Harimaya Bridge, visiting Kochi Castle, the Makino Botanical Garden and moreView on Klook
A summer festival held in Tokushima City. Enjoy the dancing of the ren dance troupes at paid and free performance venues and dance plazas.
Read the guide：Awa Odori →Tours & tickets for this eventPR
- PRKlookNaruto Whirlpools, Awaji Island & Awa Odori Experience Day Tour (from Osaka)See the Naruto whirlpools and Awaji Island, and enjoy a dance performance at the Awa Odori KaikanView on Klook
- PRKlookUzu-no-Michi & Onaruto Bridge Memorial Museum Eddy Admission Ticket (Tokushima)Look down on the Naruto whirlpools through a glass floor about 45 m above the seaView on Klook
Matsuyama Yakyuken Odori
MatsuyamaEarly to mid-August (August 7–9 in 2026)Matsuyama's summer festival, in which ren dance troupes dance to the rhythm of yakyuken around Okaido, Shiroyama Park and elsewhere.
The largest Shinto ritual of Itsukushima Shrine, said to have been started by Taira no Kiyomori, who built the shrine. It is a sea procession in which a gozabune boat carrying the mikoshi portable shrine crosses the water while kangen (court music) is played aboard at various spots, and it is counted among Japan’s three great boat festivals. It is held on the 17th day of the 6th month of the lunar calendar, so the date changes every year.
Read the guide：Kangensai Festival at Itsukushima Shrine →Tours & tickets for this eventPR
- PRKlookHiroshima & Miyajima Full-Day Private Guided TourVisit Peace Memorial Park and Shukkeien Garden, then take the ferry to Miyajima’s Grand Torii and Itsukushima ShrineView on Klook
- PRKlookHave Fun in Hiroshima PassA pass that lets you choose 3 Hiroshima sights and experiences. Includes a discount coupon for the high-speed boat between Hiroshima Port and Miyajima PortView on Klook
A summer festival starring the Shan-Shan Kasa Odori, an umbrella dance adapted from the Inaba Kasa Odori of eastern Tottori Prefecture so that anyone can dance it. It began in 1961 as the Tottori Festival and has been held under its current name since 1965. At the 50th festival (2014) it set a world record for the largest umbrella dance, and every year more than 4,000 dancers dance in unison holding brightly colored umbrellas with bells.
Read the guide：Tottori Shan-Shan Festival →Dates change every year. Please check the official websites before you go.
FAQ
FAQ
Q. What's the temperature in Hiroshima in August?＋
On average, the high is 32.8°C and the low is 25.1°C. It's the hottest month of the year.
Q. Where is it cool in Chugoku & Shikoku in August?＋
Iya, in the mountains of Tokushima Prefecture, has highs around 30°C and mornings around 19°C, cooler than Tokushima City.
Q. When are the Awa Odori and the Yosakoi Festival?＋
The Yosakoi Festival is every year on August 9–12, and the Awa Odori usually on August 12–15. Book accommodation early.
Plan Your Trip
Plan Your Chugoku & Shikoku TripPR
Other Months
Chugoku & Shikoku Weather in Other Months
Back to the Chugoku & Shikoku Weather Guide (all months & areas) →
Source: Japan Meteorological Agency (climate normals 1991-2020). Compiled by tripuuu.log. Temperatures are from a representative station in each area; actual weather varies from year to year.