Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kanaishima experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 36°F in January while summers reach 72°F in July. The area gets 218 sunny days per year. Annual precipitation totals 65.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 197 feet.
Temperature
36°F Jan (2°C)72°F Jul (22°C)
Annual Average
54.5°F
1% above US avg
January Average
36°F (2°C)
July Average
72°F (22°C)
Sunny Days
218 days/yr
Geography
Elevation
197 ft (60 m)
Area
3.2 sq mi (8.2 km²)
Population Density
5,782/sq mi
Coordinates
35.3441°N, 139.1175°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall65.1"
71% above US avg
Snowfall0.0"
Wettest Month (Aug)9.37"
Driest Month (Dec)1.77"
Air Quality
Earthquake History
2,104 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.4.
Feb 20, 1990
28 km E of Shimoda, Japan
M6.4
72 km
14 km
Jun 1, 1990
near the east coast of Honshu, Japan
M6.3
112 km
67 km
Apr 11, 2011
23 km SE of T?gane, Japan
M6.2
132 km
15 km
Jun 3, 2000
6 km SE of Narut?, Japan
M6.2
124 km
62 km
Apr 21, 2011
6 km WNW of T?gane, Japan
M6.2
111 km
43 km
Aug 10, 2009
8 km NE of Sagara, Japan
M6.2
103 km
40 km
Jul 1, 2000
53 km SSE of Shimoda, Japan
M6.1
125 km
10 km
May 26, 2023
12 km SE of Narutō, Japan
M6.1
129 km
42 km
Jul 15, 2000
near the south coast of Honshu, Japan
M6.1
115 km
10 km
Mar 15, 2011
6 km NNW of Fujinomiya, Japan
M6.0
49 km
9 km
May 4, 2014
31 km ESE of It?, Japan
M6.0
55 km
153 km
Mar 14, 2012
5 km SE of Asahi, Japan
M6.0
148 km
10 km
Aug 1, 2011
20 km E of ?yama, Japan
M5.9
101 km
13 km
Jul 8, 2000
71 km SSE of Shimoda, Japan
M5.9
144 km
10 km
Jan 15, 2007
15 km WSW of Heda, Japan
M5.9
66 km
170 km
Apr 10, 2005
near the east coast of Honshu, Japan
M5.9
120 km
43 km
Oct 6, 1995
68 km S of Shimoda, Japan
M5.9
142 km
33 km
Jul 23, 2005
9 km WSW of Ichihara, Japan
M5.9
80 km
61 km
Apr 29, 2012
5 km NNW of T?gane, Japan
M5.8
115 km
44 km
Feb 1, 1992
4 km SSE of Miura, Japan
M5.8
55 km
100 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
44 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2025
Halong
Category 3
—
297 km
2025
Nakri
Category 1
—
272 km
2024
Ampil
Category 3
98 mph
228 km
2024
Jebi
Category 1
75 mph
287 km
2019
Faxai
Category 4
98 mph
52 km
2019
Hagibis
Category 2
92 mph
38 km
2018
Jongdari
Category 2
86 mph
148 km
2018
Shanshan
Category 1
81 mph
190 km
2017
Lan
Category 1
98 mph
279 km
2016
Mindulle
Category 1
75 mph
121 km
2014
Phanfone
Category 1
81 mph
82 km
2013
Wipha
Category 1
81 mph
284 km
2011
Roke
Category 3
92 mph
62 km
2009
Melor
Category 1
86 mph
275 km
2009
Krovanh
Category 1
69 mph
217 km
2008
Sinlaku
Category 1
75 mph
289 km
2007
Fitow
Category 1
81 mph
29 km
2005
Saola
Category 2
86 mph
287 km
2005
Mawar
Category 2
86 mph
44 km
2004
Ma-on
Category 4
92 mph
23 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
20 tsunamis recorded within 500 km.
Highest wave on record: 13.0 m (43 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1923
SAGAMI BAY
Earthquake
13.0 m
105,385
44 km
1703
OFF SW BOSO PENINSULA
Earthquake
11.7 m
5,233
95 km
1495
KAMAKURA, SAGAMI BAY, TOKAIDO
Earthquake
5.0 m
200
44 km
1433
OFF IZU-OSHIMA
Earthquake
2.0 m
—
60 km
2009
HONSHU: S COAST
Earthquake
0.6 m
1
103 km
1980
HONSHU ISLAND
Earthquake
0.6 m
—
60 km
1978
TOKAIDO
Earthquake
0.4 m
25
61 km
1923
RYUKYU ISLANDS
Earthquake
0.3 m
—
110 km
1974
TOKAIDO
Earthquake
0.2 m
30
91 km
1990
JAPAN
Earthquake
0.2 m
—
72 km
2000
HONSHU: S COAST
Earthquake
0.1 m
—
115 km
2000
KOZU-SHIMA ISLAND, HONSHU
Earthquake
0.1 m
1
125 km
1857
TOKAIDO
Earthquake
—
—
96 km
1855
TOKAIDO
Earthquake
—
6,757
71 km
1782
ODAWARA, SAGAMI BAY
Eruption + Earthquake
—
—
60 km
1642
BOSO, JAPAN
Earthquake
—
—
136 km
1633
SAGAMI BAY
Earthquake
—
150
18 km
1602
BOSO, JAPAN
Eruption + Earthquake
—
—
129 km
1589
SURUGA, JAPAN
Earthquake
—
—
103 km
1257
SAGAMI BAY, JAPAN
Earthquake
—
—
38 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Hakoneyama (15 km).
Name
Type
Elevation
Last Eruption
Distance
Hakoneyama
Complex
1,438 m (4,718 ft)
2015
15 km
Fujisan
Stratovolcano
3,776 m (12,388 ft)
1708
35 km
Izu-Tobu
Pyroclastic cone(s)
1,406 m (4,613 ft)
1989
49 km
Izu-Oshima
Stratovolcano
758 m (2,487 ft)
1990
73 km
Toshima
Stratovolcano
508 m (1,667 ft)
-4550
93 km
Niijima
Lava dome(s)
432 m (1,417 ft)
886
106 km
Yokodake
Stratovolcano(es)
2,480 m (8,136 ft)
1200
110 km
Kozushima
Lava dome(s)
572 m (1,877 ft)
838
125 km
Harunasan
Stratovolcano
1,449 m (4,754 ft)
550
128 km
Asamayama
Complex
2,568 m (8,425 ft)
2019
130 km
Akagisan
Stratovolcano
1,828 m (5,997 ft)
Unknown
135 km
Miyakejima
Stratovolcano
775 m (2,543 ft)
2010
144 km
Kusatsu-Shiranesan
Stratovolcano(es)
2,165 m (7,103 ft)
2018
151 km
Shiga
Shield(s)
2,041 m (6,696 ft)
Unknown
159 km
Ontakesan
Complex
3,067 m (10,062 ft)
2014
160 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
36°F (2°C)
1.9 in
Coldest
February
37°F (3°C)
2.5 in
March
42°F (5°C)
4.3 in
April
52°F (11°C)
5.0 in
May
60°F (15°C)
5.8 in
June
65°F (18°C)
8.3 in
July
72°F (22°C)
6.8 in
August
74°F (24°C)
9.4 in
Warmest, Wettest
September
68°F (20°C)
9.1 in
October
58°F (15°C)
6.8 in
November
50°F (10°C)
3.5 in
December
41°F (5°C)
1.8 in
Driest
Kanaishima has a seasonal temperature swing of 38°F / from 36°F in January to 74°F in August. Total annual precipitation is 65.1 inches, with August being the wettest month (9.4") and December the driest (1.8").