Weather in Japan: Based on NeemTime research
Weather Overview of Japan
Japan experiences a diverse climate due to its length from north to south. It has four distinct seasons, ranging from snowy winters in the north (Hokkaido) to subtropical warmth in the south (Okinawa). The Pacific side (Tokyo, Osaka) tends to be sunnier and drier in winter, while the Sea of Japan side receives more snow.
Weather Seasons of Japan
Winter (December to February): Cold and dry on the Pacific coast; heavy snow on the Sea of Japan side and in the north.
Spring (March to May): Mild and pleasant with cherry blossoms blooming across the country.
Summer (June to August): Begins with a rainy season (June), followed by hot and humid weather in July and August.
Autumn (September to November): Mild with vibrant autumn foliage and lower humidity.
Month with the Highest Temperature of Japan
August is typically the hottest month, especially in cities like Tokyo, where average highs can reach 31°C (88°F) with high humidity.
Month with the Lowest Temperature of Japan
January is the coldest month, especially in northern Japan (e.g., Sapporo), with temperatures often dropping below -5°C (23°F), while Tokyo averages around 1°C to 10°C (34°F to 50°F).
January Weather of Japan
Hokkaido (North): Very cold with heavy snowfall; -6°C to -1°C (21°F to 30°F).
Tokyo (Central): Chilly but dry and sunny; 1°C to 10°C (34°F to 50°F).
Okinawa (South): Mild and cooler than summer; 14°C to 20°C (57°F to 68°F).
February Weather of Japan
Hokkaido: Continues to be snowy and cold; -6°C to 0°C (21°F to 32°F).
Tokyo: Slightly warmer and still dry; 2°C to 11°C (36°F to 52°F).
Okinawa: Early signs of spring; 15°C to 21°C (59°F to 70°F).
March Weather of Japan
Hokkaido: Temperatures rise slightly; snow still present; -3°C to 4°C (27°F to 39°F).
Tokyo: Start of spring; cherry blossoms may begin blooming late in the month; 5°C to 14°C (41°F to 57°F).
Okinawa: Spring-like weather; 17°C to 22°C (63°F to 72°F).
April Weather of Japan
Hokkaido: Snow melts, temperatures increase; 3°C to 12°C (37°F to 54°F).
Tokyo: Peak cherry blossom season; mild and sunny; 10°C to 19°C (50°F to 66°F).
Okinawa: Warm and summery; 19°C to 24°C (66°F to 75°F).
May Weather of Japan
May in Japan is mild and pleasant, often considered one of the best months to visit.
Tokyo: 15°C to 24°C (59°F to 75°F), low humidity.
Hokkaido: 7°C to 17°C (45°F to 63°F), spring blossoms peak.
Okinawa: 21°C to 27°C (70°F to 81°F), start of rainy season late in the month.
June Weather of Japan
June marks the start of the rainy season (tsuyu) in most of Japan (except Hokkaido).
Tokyo: 18°C to 26°C (64°F to 79°F), humid and cloudy.
Hokkaido: 12°C to 21°C (54°F to 70°F), no rainy season, pleasant.
Okinawa: 24°C to 29°C (75°F to 84°F), very humid.
July Weather of Japan
July is hot and humid, with the rainy season ending mid-month in most areas.
Tokyo: 23°C to 31°C (73°F to 88°F), high humidity.
Hokkaido: 17°C to 25°C (63°F to 77°F), cooler and pleasant.
Okinawa: 26°C to 32°C (79°F to 90°F), hot with possible typhoons.
August Weather of Japan
August is the hottest month across Japan, with high humidity and potential typhoons.
Tokyo: 25°C to 32°C (77°F to 90°F).
Hokkaido: 18°C to 27°C (64°F to 81°F), peak summer.
Okinawa: 27°C to 32°C (81°F to 90°F), frequent storms possible.
September Weather of Japan
September is still warm and humid, especially in early weeks; typhoons may occur.
Tokyo: 21°C to 28°C (70°F to 82°F).
Hokkaido: 14°C to 22°C (57°F to 72°F), cooler and drier.
Okinawa: 26°C to 31°C (79°F to 88°F), rainy and stormy.
October Weather of Japan
October brings autumn weather and beautiful foliage in the north.
Tokyo: 15°C to 22°C (59°F to 72°F), comfortable and dry.
Hokkaido: 7°C to 16°C (45°F to 61°F), peak autumn leaves.
Okinawa: 23°C to 28°C (73°F to 82°F), less rain, still warm.
November Weather of Japan
November is crisp and colorful, with stunning fall foliage in central regions.
Tokyo: 10°C to 17°C (50°F to 63°F), dry and clear.
Hokkaido: 0°C to 8°C (32°F to 46°F), first snowfall likely.
Okinawa: 20°C to 25°C (68°F to 77°F), mild and less humid.
December Weather of Japan
December is cold and dry, with snow in the north and festive lights in cities.
Tokyo: 5°C to 12°C (41°F to 54°F), sunny and crisp.
Hokkaido: -5°C to 2°C (23°F to 36°F), snowy and wintry.
Okinawa: 16°C to 22°C (61°F to 72°F), cool but comfortable.