Climate in Japan

Japan experiences notable climate variation across the country. Annual temperatures range from lows of -15°C in the coldest regions to highs of 34°C in the warmest areas. Rainfall varies dramatically, from around 938mm annually in the driest areas to 3214mm in the wettest. Some regions receive significant snowfall, with up to 510cm annually, while other areas see little to none. The warmest areas are temperate year-round while the coldest regions remain cool, making Japan a country of sharp climate contrasts.

Temperature patterns across Japan vary by region, with distinct differences between areas. The Central is the warmest part of the country, with peak temperatures reaching 34°C and an annual average of 17°C. Cooler conditions are found in the North, where winter lows drop to -15°C and an annual average of 3°C. This 23°C difference in annual averages between regions means travellers can experience vastly different conditions depending on which part of Japan they visit. Regional differences are most pronounced in winter, when temperatures across Japan can vary by up to 34°C between regions. For example, Nagasaki in the Nagasaki Prefecture averages 18°C annually, while Kushiro in the Hokkaido averages 8°C.

Precipitation varies dramatically across Japan, with annual totals ranging from 938mm in the driest region to 3214mm in the wettest. The Central receives the most rainfall, at approximately 3214mm annually. The Northeast is the driest, with around 938mm per year. Rainfall across the country is strongly seasonal, with summer months bringing significantly more precipitation than winter. The Central sees the most snowfall, with up to 510cm annually, while other parts of the country receive little to none. Travellers should pack rain gear when visiting wetter areas, while drier regions offer more favourable conditions throughout the year.