Rainiest Cities in Japan

Top 100 cities ranked by rainiest cities

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All Countries · Japan

Rainiest Cities — Japan

1 Koseda 18 123.4"

2 Miyanoura 18 123.4"

3 Nakanokami 18 118.4"

4 Nōkan 18 114.8"

5 Kobayashi 25 112.3"

6 Nishinoomote 18 109.1"

7 Ebino 25 109.0"

8 Maeda 18 104.8"

9 Hachijō 40 103.2"

10 Akaren 18 102.7"

11 Takamori 21 102.4"

12 Tatsugō 18 102.3"

13 Kurino 18 102.2"

14 Tarumizu 18 101.8"

15 Amami 18 101.3"

16 Naze 18 101.3"

17 Nakamatsu 21 101.1"

18 Aso 21 101.1"

19 Nichinan 25 100.4"

20 Mitai 25 100.1"

21 Soo 18 99.1"

22 Isa 18 98.9"

23 Ōkuchi-shinohara 18 98.9"

24 Mendahigashi 21 98.7"

25 Taragi 21 98.7"

26 Honjō 25 98.5"

27 Aya 25 98.5"

28 Takaharu 25 98.4"

29 Hitoyoshi 21 98.1"

30 Kinoenishi 21 98.1"

31 Sashiki 21 98.0"

32 Nejime-kawaminan 18 97.9"

33 Shiromoto 18 97.9"

34 Miyakonojō 25 97.8"

35 Mochibaru 25 97.8"

36 Sueyoshichō-ninokata 18 97.6"

37 Kushima 25 97.6"

38 Miyazaki 25 97.4"

39 Miyahara 21 97.1"

40 Kashiwazaki 29 96.8"

41 Kanoya 18 96.2"

42 Tsuma 25 95.5"

43 Shintomi 25 95.5"

44 Saito 25 95.5"

45 Izumi 18 95.0"

46 Kawaminami 25 95.0"

47 Tsunō 25 95.0"

48 Kawahara 21 95.0"

49 Yamada 21 95.0"

50 Kushimoto 43 94.9"

51 Seisui 18 94.7"

52 Takanabe 25 94.6"

53 Ōyama 37 93.9"

54 Omaezaki 37 93.9"

55 Kokubu-matsuki 18 92.9"

56 Kajiki 18 92.9"

57 Hamanoichi 18 92.9"

58 Kirishima 18 92.9"

59 Umeki 18 92.8"

60 Minamikyushu 18 92.7"

61 Kagoshima 18 92.7"

62 Gotō 27 92.6"

63 Ibusuki 18 92.4"

64 Hikiji 30 92.4"

65 Aira 18 92.2"

66 Gujō 09 91.9"

67 Kadogawa 25 91.8"

68 Hyūga 25 91.8"

69 Kawahigashi 18 91.7"

70 Shibushi 18 91.7"

71 Ōsaki 18 91.7"

72 Katsuura 43 91.6"

73 Muroto-misakicho 20 91.4"

74 Tsuruda 18 91.4"

75 Unzen 27 91.1"

76 Minamishimabara 27 91.1"

77 Tosashimizu 20 91.1"

78 Ijūin 18 90.8"

79 Myoko 29 90.8"

80 Jōetsu 29 90.8"

81 Arai 29 90.8"

82 Mino 09 90.6"

83 Sumiyoshi 37 90.5"

84 Shimada 37 90.5"

85 Sagara 37 90.5"

86 Fukuechō 27 90.2"

87 Sakai 06 90.2"

88 Maruoka 06 90.2"

89 Fukui-shi 06 90.2"

90 Amagi 18 90.0"

91 Isen 18 90.0"

92 Shimoda 20 90.0"

93 Nakamura 20 90.0"

94 Kushikino 18 89.7"

95 Ichikikushikino 18 89.7"

96 Sendai 18 89.7"

97 Ōzu 21 89.6"

98 Irino 20 89.6"

99 Sabae 06 89.6"

100 Takefu 06 89.6"

The rainiest cities in Japan receive the highest annual precipitation, creating lush green landscapes and abundant water resources. Koseda leads with 123.4 inches of precipitation annually.

High rainfall supports diverse ecosystems, extensive park systems, and reliable water supplies. These cities often feature vibrant gardens, green spaces, and agricultural communities that benefit from consistent moisture throughout the year.

While abundant rainfall supports lush environments, it can also bring challenges including flooding risks, high humidity, and more frequent overcast days. Many rainy cities have adapted with robust drainage systems, covered public spaces, and a cultural embrace of indoor activities.

Did You Know?

1. Koseda receives 123.4" of precipitation annually — that's about 10.3 feet of water.
2. The rainiest cities in the U.S. are primarily in the Southeast and Pacific Northwest, though for very different reasons — tropical moisture vs. marine influence.
3. High rainfall areas tend to have lower wildfire risk and more reliable municipal water supplies.

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