Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sagara enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 43°F in January while summers reach 77°F in July. The area gets 172 sunny days per year. Annual precipitation totals 90.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 33 feet.
Temperature
43°F Jan (6°C)77°F Jul (25°C)
Annual Average
61.0°F
13% above US avg
January Average
43°F (6°C)
July Average
77°F (25°C)
Sunny Days
172 days/yr
Geography
Elevation
33 ft (10 m)
Area
22.5 sq mi (58.1 km²)
Population Density
1,155/sq mi
Coordinates
34.6850°N, 138.2046°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall90.5"
138% above US avg
Snowfall0.0"
Wettest Month (Jun)12.09"
Driest Month (Dec)3.31"
Air Quality
Earthquake History
1,427 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.5.
Jul 30, 2000
94 km SSE of Shimoda, Japan
M6.5
139 km
10 km
Feb 20, 1990
28 km E of Shimoda, Japan
M6.4
96 km
14 km
Sep 3, 1991
115 km S of Shimoda, Japan
M6.4
127 km
27 km
Aug 10, 2009
8 km NE of Sagara, Japan
M6.2
8 km
40 km
Jul 15, 2000
near the south coast of Honshu, Japan
M6.1
105 km
10 km
Jul 1, 2000
53 km SSE of Shimoda, Japan
M6.1
99 km
10 km
Mar 15, 2011
6 km NNW of Fujinomiya, Japan
M6.0
74 km
9 km
May 4, 2014
31 km ESE of It?, Japan
M6.0
114 km
153 km
Jul 7, 1995
62 km SSE of Toba, Japan
M6.0
127 km
333 km
Aug 1, 2011
20 km E of ?yama, Japan
M5.9
22 km
13 km
Jul 8, 2000
71 km SSE of Shimoda, Japan
M5.9
110 km
10 km
Oct 6, 1995
68 km S of Shimoda, Japan
M5.9
105 km
33 km
Jan 15, 2007
15 km WSW of Heda, Japan
M5.9
46 km
170 km
Feb 1, 1992
4 km SSE of Miura, Japan
M5.8
139 km
100 km
May 23, 1997
38 km SSE of Tahara, Japan
M5.8
75 km
11 km
Feb 28, 1998
127 km S of ?yama, Japan
M5.7
137 km
291 km
Jul 2, 2000
71 km SSE of Shimoda, Japan
M5.7
116 km
10 km
Aug 18, 2000
64 km SSE of Shimoda, Japan
M5.7
109 km
10 km
Jul 30, 2000
90 km SSE of Shimoda, Japan
M5.7
134 km
10 km
Mar 16, 1997
5 km NE of Toyokawa, Japan
M5.6
72 km
36 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
50 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2025
Halong
Category 4
-
267 km
2025
Nakri
Category 1
-
250 km
2024
Ampil
Category 3
98 mph
258 km
2023
Lan
Category 2
81 mph
255 km
2019
Faxai
Category 4
98 mph
98 km
2019
Hagibis
Category 2
92 mph
46 km
2018
Trami
Category 1
92 mph
267 km
2018
Jebi
Category 1
86 mph
254 km
2018
Shanshan
Category 1
75 mph
265 km
2018
Jongdari
Category 1
81 mph
55 km
2017
Lan
Category 2
104 mph
170 km
2017
Noru
Category 1
63 mph
295 km
2016
Mindulle
Category 1
75 mph
126 km
2014
Phanfone
Category 1
86 mph
30 km
2013
Wipha
Category 1
81 mph
217 km
2011
Roke
Category 3
98 mph
44 km
2010
Chaba
Category 1
75 mph
221 km
2009
Melor
Category 1
86 mph
166 km
2009
Krovanh
Category 1
69 mph
204 km
2008
Sinlaku
Category 1
75 mph
178 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
20 tsunamis recorded within 500 km.
Highest wave on record: 21.0 m (69 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1854
ENSHUNADA SEA
Earthquake
21.0 m
1,000
81 km
1923
SAGAMI BAY
Earthquake
13.0 m
105,385
127 km
1703
OFF SW BOSO PENINSULA
Earthquake
11.7 m
5,233
146 km
1707
ENSHUNADA
Earthquake
11.0 m
2,000
75 km
1944
OFF SOUTHEAST COAST KII PENINSULA
Earthquake
10.0 m
1,223
127 km
1498
ENSHUNADA SEA
Earthquake
10.0 m
5,000
77 km
1096
ENSHUNADA
Earthquake
7.0 m
-
100 km
1495
KAMAKURA, SAGAMI BAY, TOKAIDO
Earthquake
5.0 m
200
127 km
1855
ENSHUNADA
Earthquake
3.0 m
-
59 km
1433
OFF IZU-OSHIMA
Earthquake
2.0 m
-
121 km
1945
TOKAIDO
Earthquake
1.0 m
2,306
92 km
2009
HONSHU: S COAST
Earthquake
0.6 m
1
8 km
1980
HONSHU ISLAND
Earthquake
0.6 m
-
90 km
1978
TOKAIDO
Earthquake
0.4 m
25
97 km
1974
TOKAIDO
Earthquake
0.2 m
30
46 km
1982
S. OF HONSHU ISLAND
Earthquake
0.2 m
-
148 km
1990
JAPAN
Earthquake
0.2 m
-
96 km
2000
HONSHU: S COAST
Earthquake
0.1 m
-
139 km
2000
HONSHU: S COAST
Earthquake
0.1 m
-
105 km
2000
KOZU-SHIMA ISLAND, HONSHU
Earthquake
0.1 m
1
99 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Izu-Tobu (85 km).
Name
Type
Elevation
Last Eruption
Distance
Izu-Tobu
Pyroclastic cone(s)
1,406 m (4,613 ft)
1989
85 km
Fujisan
Stratovolcano
3,776 m (12,388 ft)
1708
89 km
Hakoneyama
Complex
1,438 m (4,718 ft)
2015
96 km
Toshima
Stratovolcano
508 m (1,667 ft)
-4550
100 km
Kozushima
Lava dome(s)
572 m (1,877 ft)
838
101 km
Niijima
Lava dome(s)
432 m (1,417 ft)
886
103 km
Izu-Oshima
Stratovolcano
758 m (2,487 ft)
1990
109 km
Miyakejima
Stratovolcano
775 m (2,543 ft)
2010
138 km
Ontakesan
Complex
3,067 m (10,062 ft)
2014
150 km
Yokodake
Stratovolcano(es)
2,480 m (8,136 ft)
1200
156 km
Mikurajima
Stratovolcano
851 m (2,792 ft)
-4100
157 km
Norikuradake
Stratovolcano(es)
3,026 m (9,928 ft)
-50
169 km
Yakedake
Stratovolcano(es)
2,455 m (8,054 ft)
1995
180 km
Asamayama
Complex
2,568 m (8,425 ft)
2019
194 km
Washiba-Kumonotaira
Shield(s)
2,924 m (9,593 ft)
Unknown
199 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
43°F (6°C)
3.7 in
Coldest
February
44°F (7°C)
4.4 in
March
49°F (10°C)
7.6 in
April
58°F (15°C)
8.4 in
May
65°F (18°C)
8.5 in
June
71°F (22°C)
12.1 in
Wettest
July
77°F (25°C)
9.2 in
August
80°F (26°C)
8.7 in
Warmest
September
75°F (24°C)
10.6 in
October
66°F (19°C)
8.4 in
November
57°F (14°C)
5.6 in
December
48°F (9°C)
3.3 in
Driest
Sagara has a seasonal temperature swing of 36°F / from 43°F in January to 80°F in August. Total annual precipitation is 90.5 inches, with June being the wettest month (12.1") and December the driest (3.3").