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Japan climate: when to go to Japan

The climate in Japan, because of its shape, varies considerably depending on the latitude, on the position relative to the seas, to the Asian continent and altitude. The Japanese archipelago is arranged from north to south and is surrounded by the Pacific Ocean to the east and the Sea of ​​Japan to the west.

The northern part of the country has warm summers, but also very long and cold winters with frequent snowfalls affected by the Siberian climate. The Central Japan has hot, humid summers and short winters, while the southern part of the country has a climate characterized by hot, long and very humid summers and mild winters.

The monsoons bring rain rather abundant, usually with annual averages above 1,200 mm, but in the south reach 2,000 mm. The rainy season begins in May in the far south of the country (Okinawa), while in other regions most rains are between June and October, during this period falls about 70/80% of the precipitation, the months between August and October are also those of typhoons.

In winter, the Siberian air masses cause a significant drop in temperatures across the country, with heavy snow in the central mountainous areas, particularly on the mountain ranges facing the Sea of ​​Japan, by contrast along the coast of the Pacific Ocean in winter there are low temperatures but clear skies.

WHEN TO GO TO JAPAN

The best time for a trip to Japan are the intermediate seasons, spring and autumn, in spring you can admire the flowering trees, while in autumn the woods due to the change of color of the leaves presented in their most fascinating aspect. Is to avoid the period between June and August, humid and muggy. Winter is cold but it is also the season in which you are most likely to have sunny days.

JAPAN CLIMATIC TABLES

TOKYO – ŌTEMACHI (3 metres)
Month Average low (°C) Average high (°C) Precip. (mm) Precip. days (snowy days)
January 0,9 9,6 52,3  5,3 (2,8)
February 1,7 10,4 56,1  6,2 (3,7)
March 4,4 13,6 117,5  11,0 (2,2)
April 9,4 19,0 124,5  11,0 (0,2)
May 14,0 22,9 137,8  11,4
June 18,0 25,5 167,7  12,7
July 21,8 29,2 153,5  11,8
August 23,0 30,8 168,2  9,0
September 19,7 26,9 209,9  12,2
October 14,2 21,5 197,8  10,8
November 8,3 16,3 92,5  7,6
December 3,5 11,9 51,0  4,9 (0,8)
YEAR 11,6 19,8 1528,8  114,0 (9,7)
SAPPORO (32 metres)
Month Average low (°C) Average high (°C) Precip. (mm) Precip. days (snowy days)
January -7,0 -0,6 113,6  21,8 (28,8)
February -6,6 0,1 94,0  19,0 (25,4)
March -2,9 4,0 77,8  18,5 (23,5)
April 3,2 11,5 56,8  11,7 (6,4)
May 8,3 17,3 53,1  10,2 (0,1)
June 12,9 21,5 46,8  8,3
July 17,3 24,9 81,0  9,7
August 19,1 26,4 123,8  9,5
September 14,2 22,4 135,2  11,1
October 7,5 16,2 108,7  13,9 (1,2)
November 1,3 8,5 104,1  17,5 (13,9)
December -4,1 2,1 111,7  19,2 (26,5)
YEAR 5,3 12,9 1106,5  170,3 (125,9)
SENDAI (44 metres)
Month Average low (°C) Average high (°C) Precip. (mm) Precip. days (snowy days)
January -1,7 5,3 37,0  7,2 (20,8)
February -1,5 5,9 38,4  7,2 (17,7)
March 0,9 9,2 68,2  9,4 (11,3)
April 6,1 15,0 97,6  9,5 (1,5)
May 11,1 19,4 109,9  10,7 (0,1)
June 15,5 22,3 145,6  12,9
July 19,5 25,7 179,4  15,7
August 21,4 27,9 166,9  12,2
September 17,6 24,4 187,5  13,4
October 11,2 19,4 122,0  9,2
November 5,2 13,7 65,1  8,0 (2,5)
December 0,9 8,4 36,6  6,7 (12,7)
YEAR 8,9 16,4 1254,1  122,1 (66,5)
TOKYO
Month Sea Water Temperature °C
January 18
February 17
March 17
April 18
May 20
June 23
July 25
August 27
September 26
October 24
November 21
December 19
SHIKOKU ISLAND
Month Sea Water Temperature °C
January 18
February 17
March 18
April 19
May 21
June 23
July 27
August 28
September 27
October 24
November 22
December 20
OKINAWA ISLAND
Month Sea Water Temperature °C
January 22
February 22
March 22
April 23
May 25
June 27
July 29
August 29
September 28
October 27
November 25
December 24

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