Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Weather Guide
Kochi (Shikoku), Japan Average Monthly Weather
Weather score40Poor annual avg
Best months: September, August, July
Across the year, average daytime temperatures are around 20°C, sunshine averages 5.6h per day, and rainfall totals about 2335mm. Sea temperatures average 22°C across the year.
Annual weather
Annual averages
Temp
20°C
Rain
2335mm
Annual total
Sun
5.6h
Sea
22°C
Weather score
40
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 291mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Kochi (Shikoku), Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August30°C average high
August is one of Kochi (Shikoku)'s warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August291mm average rain
August is wetter than Kochi (Shikoku)'s yearly average, so flexible plans matter more.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August6.7 hours average sun
August is one of Kochi (Shikoku)'s sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay and July to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August28°C average sea
August is one of Kochi (Shikoku)'s warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
August54 weather score
August is one of Kochi (Shikoku)'s best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to October
These months have the strongest weather score in the monthly averages.
Hotels near Kochi (Shikoku), Japan
Marriott
Yoruya, a Member of Design Hotels™Kurashiki shi, Japan
Fairfield by Marriott Hiroshima SeraSera, Hiroshima, Japan
Fairfield by Marriott Hyogo Awaji FukuraMinami Awaji, Hyogo, Japan
Sheraton Grand Hiroshima HotelHiroshima City, Hiroshima, Japan
Nanki-Shirahama Marriott HotelWakayama-ken, Wakayama, Japan
Fairfield by Marriott Okayama TsuyamaTsuyama, Okayama, Japan