Best time to cruise · Good time to go
Japan cruises in August
Summer festival season: Aomori’s Nebuta Matsuri parades giant illuminated warrior floats from August 2 to 7, fireworks light up summer nights and Kyoto’s mountainside bonfires on August 16 mark the end of Obon, the mid-August holiday when domestic travel peaks. Heat often tops 90°F (32°C), and typhoons become more likely.
- Good time to go
- Avg high 86°F
- 14 hrs daylight
Photo: Alpsdake, CC BY-SA 4.0, via Wikimedia Commons
Japan in August: Good time to go
Summer festival season: Aomori’s Nebuta Matsuri parades giant illuminated warrior floats from August 2 to 7, fireworks light up summer nights and Kyoto’s mountainside bonfires on August 16 mark the end of Obon, the mid-August holiday when domestic travel peaks. Heat often tops 90°F (32°C), and typhoons become more likely.
Across Japan cruise ports, August brings average highs around 86°F (30°C) and lows near 77°F, with about 9 inches of rain over the month and roughly 14 hours of daylight.
- Verdict
- Good time to go
- Season
- Late March to May and September to November are peak; limited sailings in summer and winter
- Average high / low
- 86°F / 77°F
- Rainfall (month)
- 9 in
- Daylight
- About 14 hours
- Typical cruise length
- 7 to 14 nights, usually round trip from Tokyo (Yokohama), Kobe or Osaka
What to pack: light, breathable clothes, swimwear, a sun hat, sunglasses and reef-safe sunscreen, plus a light layer for air-conditioned rooms. It's one of the wetter months, so bring a compact umbrella or rain jacket.
How August compares with the rest of the year
- Jan: Shoulder season
- Feb: Shoulder season
- Mar: Best time to go
- Apr: Best time to go
- May: Best time to go
- Jun: Shoulder season
- Jul: Good time to go
- Aug: Good time to go
- Sep: Good time to go
- Oct: Best time to go
- Nov: Best time to go
- Dec: Shoulder season
- No regular sailings
- Shoulder season
- Good time to go
- Best time to go
Japan weather in August
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F (°C) | 499 | 5010 | 5714 | 6518 | 7323 | 7825 | 8429 | 8630 | 8127 | 7222 | 6317 | 5312 |
| Low °F (°C) | 394 | 394 | 457 | 5211 | 6015 | 6719 | 7424 | 7725 | 7122 | 6116 | 5211 | 436 |
| Rain in (mm) | 3.486 | 3.280 | 4.7119 | 5.6143 | 6.6167 | 10.3261 | 9.9252 | 9.0228 | 8.6219 | 5.8147 | 4.2106 | 3.793 |
| Daylight (hrs) | 10 | 11 | 12 | 13 | 14 | 15 | 14 | 14 | 12 | 11 | 10 | 10 |
August weather port by port
| Port | Avg high | Avg low | Rain | Daylight |
|---|---|---|---|---|
| Tokyo (Yokohama) | 89°F | 76°F | 7.5 in | 14 h |
| Kobe | 87°F | 79°F | 6.9 in | 13 h |
| Osaka | 90°F | 76°F | 9.8 in | 13 h |
| Hiroshima | 90°F | 76°F | 6.5 in | 13 h |
| Nagasaki | 87°F | 80°F | 11.3 in | 13 h |
| Shimizu (for Mount Fuji) | 87°F | 79°F | 9.3 in | 14 h |
| Kagoshima | 88°F | 80°F | 14.9 in | 13 h |
| Hakodate | 78°F | 69°F | 8.0 in | 14 h |
| Otaru | 80°F | 65°F | 7.6 in | 14 h |
| Kanazawa | 90°F | 77°F | 7.8 in | 14 h |
| Aomori | 81°F | 70°F | 8.0 in | 14 h |
| Naha, Okinawa | 85°F | 84°F | 6.5 in | 13 h |
| Fukuoka (Hakata) | 91°F | 76°F | 11.0 in | 13 h |
| Busan | 82°F | 80°F | 7.9 in | 14 h |
Average daily highs and lows, 2015–2024, from NASA POWER, adjusted to sea level. Rain is the average monthly total.
Other great cruise destinations in August
Japan in August: FAQs
Is August a good time to cruise Japan?
Yes, it's a good month. Summer festival season: Aomori’s Nebuta Matsuri parades giant illuminated warrior floats from August 2 to 7, fireworks light up summer nights and Kyoto’s mountainside bonfires on August 16 mark the end of Obon, the mid-August holiday when domestic travel peaks. Heat often tops 90°F (32°C), and typhoons become more likely.
What is the weather like on a Japan cruise in August?
Across Japan cruise ports, August brings average highs around 86°F (30°C) and lows near 77°F, with about 9 inches of rain over the month and roughly 14 hours of daylight. Conditions vary from port to port and day to day.
What should I pack for a Japan cruise in August?
Pack light, breathable clothes, swimwear, a sun hat, sunglasses and reef-safe sunscreen, plus a light layer for air-conditioned rooms. It's one of the wetter months, so bring a compact umbrella or rain jacket. Check your cruise line's dress code for evenings.
When is the best time to cruise Japan?
Late March to May and September to November are peak; limited sailings in summer and winter. The best months are usually March, April, May, October, November.
Where else can I cruise in August?
August is also a top month for Alaska, Canada & New England, Northern Europe, Norwegian Fjords, Baltic Sea.
Updated November 2026 by the BookMyDreamCruise editorial team. How we research and fact-check.
Sources: NASA POWER climate data.