Kōchi Weather in August
Kōchi in August sees high daytime temperatures of 27°C (81°F) and nighttime lows of 18°C (64°F). Rainfall is fairly high this month at around 165 mm (6.5 in), so pack a rain jacket to stay dry.
Rainfall in Kōchi in August
Past climate data indicates that roughly 21 days will see rain, totalling around 165 mm (6.5 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Kōchi in August
Daytime highs in Kōchi in August reach 27°C (81°F), with nights around 18°C (64°F). August is known for being in the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. This is typically the warmest month of the year, so light summer clothing is a good idea.
Sunshine in Kōchi in August
There are approximately 207 hours of sunshine this month, resulting in mostly clear days.If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Kōchi.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Kōchi's climate page.
Kōchi Temperature in August
Min Temperature
18°C (64°F)
Max Temperature
27°C (81°F)
Chance of Rain
70%
Precipitation
165 mm (6.5 in)
Rainy days
21 days
Humidity
76%
Sunshine
207 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kōchi typically stay consistent throughout August, with daily highs averaging around 27°C (81°F). Nights are warm, with lows around 20°C (68°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Kōchi in August
Browse day-by-day weather records for Kōchi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kōchi historical weather extremes in August
Our historical data for Kōchi spans 1976 to 2025, revealing these weather extremes.
- The warmest day in August was on August 9, 1997, with a maximum of 36°C (97°F).
- Kōchi experienced its chilliest August day on August 27, 1996, reaching only 16°C (61°F).
- Nighttime temperatures dropped to 12°C (54°F) on August 18, 2018, marking the coldest August night on record.
Best Places in Japan in August
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Kōchi in August
Warm but pleasant conditions in Kōchi in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Kōchi in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Kōchi's climate page.
Temperature Rainfall Sunshine Humidity
See the full Kōchi climate overview or explore weather in Japan.
