Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nagadomi enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 42°F in January while summers reach 82°F in July. The area gets 283 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 50.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 62 feet.
Temperature
42°F Jan (6°C)82°F Jul (28°C)
Annual Average
63.1°F
17% above US avg
January Average
42°F (6°C)
July Average
82°F (28°C)
Sunny Days
283 days/yr
Geography
Elevation
62 ft (19 m)
Area
22.0 sq mi (56.9 km²)
Population Density
306/sq mi
Coordinates
35.4293°N, 140.2310°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall50.3"
32% above US avg
Snowfall0.5"
Wettest Month (Oct)8.03"
Driest Month (Dec)2.36"
Air Quality
Earthquake History
2,810 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M7.9.
Mar 11, 2011
47 km E of ?arai, Japan
M7.9
124 km
43 km
May 7, 2008
78 km NE of Hasaki, Japan
M6.9
143 km
27 km
Mar 11, 2011
81 km NE of Hasaki, Japan
M6.5
145 km
7 km
Feb 20, 1990
28 km E of Shimoda, Japan
M6.4
120 km
14 km
Jun 1, 1990
near the east coast of Honshu, Japan
M6.3
14 km
67 km
Sep 11, 1996
23 km SSE of Hasaki, Japan
M6.2
66 km
55 km
Apr 21, 2011
6 km WNW of T?gane, Japan
M6.2
18 km
43 km
Apr 11, 2011
23 km SE of T?gane, Japan
M6.2
31 km
15 km
Jun 3, 2000
6 km SE of Narut?, Japan
M6.2
25 km
62 km
May 7, 2008
80 km NE of Hasaki, Japan
M6.2
145 km
19 km
May 26, 2023
12 km SE of Narutō, Japan
M6.1
29 km
42 km
Sep 15, 2011
68 km E of ?arai, Japan
M6.1
136 km
28 km
Jun 5, 2012
75 km ESE of ?hara, Japan
M6.1
98 km
15 km
Nov 20, 1996
115 km SE of Katsuura, Japan
M6.1
146 km
33 km
Aug 5, 1990
43 km E of ?arai, Japan
M6.1
124 km
27 km
Mar 13, 2011
72 km E of Hasaki, Japan
M6.1
131 km
8 km
May 4, 2014
31 km ESE of It?, Japan
M6.0
94 km
153 km
Mar 11, 2011
4 km ESE of Hasaki, Japan
M6.0
66 km
48 km
Mar 14, 2012
5 km SE of Asahi, Japan
M6.0
51 km
10 km
Aug 6, 1991
19 km E of Hasaki, Japan
M6.0
81 km
29 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
43 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2025
Halong
Category 3
—
282 km
2025
Nakri
Category 1
—
244 km
2024
Ampil
Category 3
98 mph
155 km
2024
Jebi
Category 1
75 mph
192 km
2021
Mindulle
Category 1
92 mph
265 km
2019
Faxai
Category 4
98 mph
31 km
2019
Hagibis
Category 2
92 mph
78 km
2018
Jongdari
Category 2
86 mph
176 km
2018
Shanshan
Category 1
81 mph
106 km
2016
Mindulle
Category 1
75 mph
142 km
2016
Lionrock
Category 1
81 mph
220 km
2014
Phanfone
Category 1
75 mph
177 km
2011
Roke
Category 1
92 mph
107 km
2009
Krovanh
Category 1
69 mph
217 km
2007
Fitow
Category 1
81 mph
95 km
2005
Saola
Category 2
86 mph
214 km
2005
Mawar
Category 2
86 mph
30 km
2004
Ma-on
Category 4
92 mph
43 km
2003
Choi-wan
Category 3
81 mph
231 km
2002
Higos
Category 2
92 mph
60 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
76 km
1703
OFF SW BOSO PENINSULA
Earthquake
11.7 m
5,233
90 km
1677
OFF SE. BOSO PENINSULA
Earthquake
8.0 m
500
125 km
1495
KAMAKURA, SAGAMI BAY, TOKAIDO
Earthquake
5.0 m
200
76 km
1732
KUJUKURI BEACH, JAPAN
Earthquake
2.0 m
—
58 km
1670
BOSO, JAPAN
Earthquake
2.0 m
—
70 km
1433
OFF IZU-OSHIMA
Earthquake
2.0 m
—
89 km
1980
HONSHU ISLAND
Earthquake
0.6 m
—
118 km
1923
KASHIMA, JAPAN
Earthquake
0.4 m
—
142 km
1978
TOKAIDO
Earthquake
0.4 m
25
112 km
1923
RYUKYU ISLANDS
Earthquake
0.3 m
—
59 km
1896
KASHIMA, JAPAN
Earthquake
0.3 m
—
138 km
1990
JAPAN
Earthquake
0.2 m
—
120 km
1855
TOKAIDO
Earthquake
—
6,757
46 km
1782
ODAWARA, SAGAMI BAY
Eruption + Earthquake
—
—
61 km
1642
BOSO, JAPAN
Earthquake
—
—
42 km
1633
SAGAMI BAY
Earthquake
—
150
97 km
1602
BOSO, JAPAN
Eruption + Earthquake
—
—
44 km
1257
SAGAMI BAY, JAPAN
Earthquake
—
—
71 km
1241
KAMAKURA, SAGAMI BAY
Earthquake
—
—
80 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Izu-Oshima (109 km).
Name
Type
Elevation
Last Eruption
Distance
Izu-Oshima
Stratovolcano
758 m (2,487 ft)
1990
109 km
Hakoneyama
Complex
1,438 m (4,718 ft)
2015
112 km
Izu-Tobu
Pyroclastic cone(s)
1,406 m (4,613 ft)
1989
119 km
Toshima
Stratovolcano
508 m (1,667 ft)
-4550
133 km
Fujisan
Stratovolcano
3,776 m (12,388 ft)
1708
137 km
Niijima
Lava dome(s)
432 m (1,417 ft)
886
144 km
Akagisan
Stratovolcano
1,828 m (5,997 ft)
Unknown
157 km
Miyakejima
Stratovolcano
775 m (2,543 ft)
2010
162 km
Nantaisan
Stratovolcano
2,486 m (8,156 ft)
-9540
163 km
Omanago Group
Lava dome(s)
2,341 m (7,680 ft)
-3050
165 km
Kozushima
Lava dome(s)
572 m (1,877 ft)
838
167 km
Takaharayama
Stratovolcano
1,795 m (5,889 ft)
-4570
169 km
Harunasan
Stratovolcano
1,449 m (4,754 ft)
550
170 km
Nikko-Shiranesan
Shield
2,578 m (8,458 ft)
1952
171 km
Mikurajima
Stratovolcano
851 m (2,792 ft)
-4100
182 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
42°F (6°C)
2.4 in
February
41°F (5°C)
3.3 in
Coldest
March
47°F (8°C)
5.0 in
April
56°F (14°C)
5.2 in
May
64°F (18°C)
5.3 in
June
69°F (21°C)
7.1 in
July
82°F (28°C)
4.8 in
Warmest
August
79°F (26°C)
5.4 in
September
73°F (23°C)
8.0 in
October
64°F (18°C)
8.0 in
Wettest
November
54°F (12°C)
4.6 in
December
45°F (7°C)
2.4 in
Driest
Nagadomi has a seasonal temperature swing of 40°F / from 41°F in February to 82°F in July. Total annual precipitation is 61.5 inches, with October being the wettest month (8.0") and December the driest (2.4").