Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Weather Guide
Japan Average Monthly Weather
Weather score38Poor annual avg
Best months: August, July, September
Across the year, average daytime temperatures are around 19°C, sunshine averages 4.9h per day, and rainfall totals about 1441mm. Sea temperatures average 16°C across the year.
Annual weather
Annual averages
Temp
19°C
Rain
1441mm
Annual total
Sun
4.9h
Sea
16°C
Weather score
38
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 210mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Weather map
Compare Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July27°C average high
July is one of Japan'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
July210mm average rain
July is wetter than Japan's yearly average, so flexible plans matter more.
Driest monthsJanuary to March
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July5.2 hours average sun
July is brighter than Japan's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to May and July to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July20°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
Weather score
July52 weather score
July scores above Japan's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to September
These months have the strongest weather score in the monthly averages.
Hotels near Japan
Marriott
Lake Biwa Marriott HotelShiga, Japan
The Prince Kyoto Takaragaike, Autograph CollectionKyoto City, Japan
Hotel Koo Otsu Hyakucho, a Member of Design Hotels™Otsu, Shiga, Japan
The Westin Miyako KyotoKyoto, Kyoto, Japan
The Ritz-Carlton, KyotoKyoto, Japan
The Chapter Kyoto, a Tribute Portfolio HotelKyoto-City, Kyoto, Japan