Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sandachō enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 37°F in January while summers reach 77°F in July. The area gets 232 sunny days per year, above the national average. Annual precipitation totals 57.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 482 feet.
Temperature
37°F Jan (3°C)77°F Jul (25°C)
Annual Average
56.9°F
5% above US avg
January Average
37°F (3°C)
July Average
77°F (25°C)
Sunny Days
232 days/yr
Geography
Elevation
482 ft (147 m)
Area
81.2 sq mi (210.2 km²)
Population Density
1,637/sq mi
Coordinates
34.8844°N, 135.2269°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall57.2"
51% above US avg
Snowfall0.0"
Wettest Month (Jun)8.43"
Driest Month (Dec)1.93"
Air Quality
Earthquake History
319 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.9.
Jan 16, 1995
8 km S of Akashi, Japan
M6.9
39 km
22 km
Apr 11, 1990
11 km ENE of Maizuru, Japan
M6.1
69 km
362 km
Aug 7, 1992
21 km N of Miyazu, Japan
M5.8
94 km
358 km
Jun 1, 1998
17 km SW of Owase, Japan
M5.8
131 km
399 km
Apr 12, 2013
6 km WNW of Sumoto, Japan
M5.8
68 km
14 km
Aug 20, 1999
22 km SE of Kainan, Japan
M5.7
97 km
66 km
Jun 17, 2018
near the south coast of western Honshu, Japan
M5.5
38 km
10 km
Apr 21, 2000
27 km NNE of Maizuru, Japan
M5.5
90 km
347 km
Oct 30, 2000
western Honshu, Japan
M5.5
111 km
35 km
Sep 24, 2003
5 km WNW of Ayabe, Japan
M5.4
48 km
372 km
Sep 16, 2002
24 km SW of Kurayoshi, Japan
M5.3
149 km
10 km
Jan 11, 2001
15 km E of Tottori, Japan
M5.3
100 km
33 km
Mar 13, 2019
22 km ESE of Anan, Japan
M5.2
124 km
37 km
Apr 22, 1998
18 km SE of Hikone, Japan
M5.2
113 km
33 km
Jan 30, 1996
67 km NNE of Miyazu, Japan
M5.2
139 km
361 km
Apr 14, 2000
10 km SSW of Tanabe, Japan
M5.1
137 km
35 km
Apr 15, 2007
11 km ENE of Ueno-ebisumachi, Japan
M5.1
93 km
16 km
Jun 10, 2009
7 km WSW of Ise, Japan
M5.1
137 km
352 km
Mar 16, 1999
10 km WNW of Kitahama, Japan
M5.1
65 km
33 km
May 28, 1994
12 km WNW of Nagahama, Japan
M5.1
101 km
49 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
47 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2023
Lan
Category 2
75 mph
139 km
2018
Jebi
Category 3
98 mph
72 km
2018
Trami
Category 1
92 mph
123 km
2018
Cimaron
Category 1
86 mph
58 km
2018
Jongdari
Category 1
81 mph
177 km
2017
Lan
Category 1
98 mph
245 km
2017
Noru
Category 1
69 mph
99 km
2016
Malakas
Category 1
86 mph
281 km
2015
Nangka
Category 1
81 mph
226 km
2014
Phanfone
Category 2
92 mph
174 km
2014
Halong
Category 1
81 mph
275 km
2012
Jelawat
Category 1
92 mph
256 km
2011
Roke
Category 3
98 mph
181 km
2011
Ma-on
Category 1
86 mph
154 km
2009
Melor
Category 1
86 mph
160 km
2008
Sinlaku
Category 1
75 mph
205 km
2005
Mawar
Category 2
86 mph
281 km
2004
Ma-on
Category 4
92 mph
272 km
2004
Songda
Category 2
86 mph
254 km
2004
Chaba
Category 1
69 mph
147 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
12 tsunamis recorded within 500 km.
Highest wave on record: 11.3 m (37 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1927
SW. HONSHU ISLAND
Eruption + Earthquake
11.3 m
3,022
80 km
1711
SEIONAIKAI, JAPAN
Earthquake
2.0 m
1,000
130 km
1510
OSAKA BAY
Earthquake
2.0 m
-
35 km
1909
ANEGAWA, JAPAN
Earthquake
1.8 m
41
113 km
1808
E. AWA, TOKUSHIMA PREFECTURE
Earthquake
1.5 m
-
116 km
1995
KOBE, JAPAN
Earthquake
0.3 m
6,434
36 km
1791
OASAKA BAY
Earthquake
-
-
46 km
1666
AICHI PREFECTURE
Earthquake
-
-
144 km
1586
ISE BAY
Earthquake
-
8,000
144 km
1331
OFF TANABE, WAKAYAMA PREFECTURE
Earthquake
-
-
132 km
745
OSAKA BAY, JAPAN
Earthquake
-
-
32 km
701
SEA OF JAPAN
Earthquake
-
-
92 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km.
Closest: Hakusan (199 km).
Name
Type
Elevation
Last Eruption
Distance
Hakusan
Stratovolcano
2,702 m (8,865 ft)
1659
199 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
37°F (3°C)
2.3 in
Coldest
February
38°F (3°C)
2.8 in
March
43°F (6°C)
4.1 in
April
54°F (12°C)
5.3 in
May
62°F (17°C)
5.8 in
June
69°F (21°C)
8.4 in
Wettest
July
77°F (25°C)
7.0 in
August
79°F (26°C)
4.6 in
Warmest
September
71°F (22°C)
7.6 in
October
61°F (16°C)
4.5 in
November
51°F (10°C)
3.0 in
December
42°F (5°C)
1.9 in
Driest
Sandachō has a seasonal temperature swing of 42°F / from 37°F in January to 79°F in August. Total annual precipitation is 57.3 inches, with June being the wettest month (8.4") and December the driest (1.9").