Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shimanto enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 44°F in January while summers reach 78°F in July. The area gets 279 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 79.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 827 feet.
Temperature
44°F Jan (6°C)78°F Jul (26°C)
Annual Average
60.8°F
13% above US avg
January Average
44°F (6°C)
July Average
78°F (26°C)
Sunny Days
279 days/yr
Geography
Elevation
827 ft (252 m)
Area
463.8 sq mi (1,201.1 km²)
Population Density
0/sq mi
Coordinates
33.0783°N, 132.8523°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall79.6"
109% above US avg
Snowfall0.4"
Wettest Month (Jun)12.80"
Driest Month (Jan)2.40"
Air Quality
Earthquake History
221 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.8.
Mar 24, 2001
16 km SSW of Kure, Japan
M6.8
116 km
50 km
Mar 13, 2014
32 km SSW of Hikari, Japan
M6.3
117 km
79 km
Apr 17, 2024
18 km W of Uwajima, Japan
M6.3
49 km
32 km
Jan 21, 2022
27 km SSE of Saiki, Japan
M6.3
85 km
39 km
Aug 28, 2014
53 km E of Takanabe, Japan
M5.8
133 km
20 km
Apr 25, 2001
18 km SE of Saiki, Japan
M5.7
82 km
33 km
Mar 27, 2006
45 km SSE of Saiki, Japan
M5.5
84 km
35 km
Jul 12, 2015
12 km SSW of Usuki, Japan
M5.5
103 km
53 km
May 22, 1998
9 km NE of Bungo-Takada-shi, Japan
M5.5
138 km
81 km
Nov 4, 2002
Kyushu, Japan
M5.4
144 km
33 km
Mar 2, 2017
39 km SSE of Saiki, Japan
M5.3
86 km
44 km
Mar 27, 2019
57 km E of Takanabe, Japan
M5.3
125 km
19 km
Mar 27, 2019
45 km E of Takanabe, Japan
M5.2
131 km
17 km
Jul 17, 2021
29 km NE of Kitsuki, Japan
M5.2
113 km
64 km
Mar 25, 2001
22 km WNW of H?j?, Japan
M5.2
108 km
43 km
Jan 29, 2012
13 km E of Nobeoka, Japan
M5.1
112 km
62 km
Apr 26, 2007
15 km ESE of Niihama, Japan
M5.1
107 km
50 km
Apr 15, 2016
13 km SW of Saiki, Japan
M5.1
101 km
10 km
Apr 15, 2016
11 km WSW of Beppu, Japan
M5.1
139 km
10 km
Apr 2, 1997
34 km WSW of ?zu, Japan
M5.1
66 km
46 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
61 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2024
Shanshan
Category 2
104 mph
247 km
2023
Lan
Category 1
69 mph
273 km
2022
Nanmadol
Category 3
104 mph
217 km
2020
Chan-hom
Category 1
81 mph
269 km
2019
Francisco
Category 1
81 mph
167 km
2018
Jebi
Category 3
98 mph
116 km
2018
Trami
Category 1
98 mph
88 km
2018
Cimaron
Category 1
92 mph
151 km
2017
Noru
Category 1
69 mph
60 km
2016
Malakas
Category 3
92 mph
68 km
2015
Goni
Category 3
104 mph
231 km
2015
Nangka
Category 1
86 mph
135 km
2014
Phanfone
Category 2
98 mph
167 km
2014
Halong
Category 1
86 mph
43 km
2012
Jelawat
Category 1
98 mph
199 km
2011
Roke
Category 4
98 mph
232 km
2011
Ma-on
Category 1
86 mph
53 km
2009
Melor
Category 1
92 mph
226 km
2008
Sinlaku
Category 1
75 mph
133 km
2007
Usagi
Category 3
104 mph
126 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
14 tsunamis recorded within 500 km.
Highest wave on record: 8.0 m (26 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1596
BEPPU BAY, KYUSHU
Eruption + Earthquake
8.0 m
708
110 km
1968
SEIKAIDO
Earthquake
3.1 m
1
93 km
684
NANKAIDO
Earthquake
3.0 m
—
125 km
1769
SW. KYUSHU ISLAND
Earthquake
2.5 m
—
118 km
1941
SEIKAIDO
Earthquake
1.2 m
2
139 km
1939
SEIKAIDO
Earthquake
0.8 m
1
118 km
1931
SEIKAIDO
Earthquake
0.8 m
1
120 km
1970
SEIKAIDO
Earthquake
0.3 m
—
146 km
1984
KYUSHU, JAPAN
Earthquake
0.2 m
—
115 km
1969
RYUKYU ISLANDS
Earthquake
0.1 m
—
120 km
1899
SEIKAIDO
Earthquake
—
—
67 km
1715
SEIKAIDO
Earthquake
—
—
110 km
1698
SEIKAIDO-NANKAIDO
Earthquake
—
—
110 km
1597
BEPPU BAY, JAPAN
Eruption + Earthquake
—
40
119 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km.
Closest: Yufu-Tsurumi (138 km).
Name
Type
Elevation
Last Eruption
Distance
Yufu-Tsurumi
Lava dome(s)
1,584 m (5,197 ft)
867
138 km
Kujusan
Stratovolcano(es)
1,791 m (5,876 ft)
1996
149 km
Asosan
Caldera
1,592 m (5,223 ft)
2020
165 km
Abu
Shield(s)
641 m (2,103 ft)
-6850
196 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
44°F (6°C)
2.4 in
Coldest, Driest
February
44°F (7°C)
3.9 in
March
50°F (10°C)
6.0 in
April
59°F (15°C)
8.9 in
May
65°F (18°C)
10.0 in
June
71°F (22°C)
12.8 in
Wettest
July
78°F (26°C)
12.5 in
August
79°F (26°C)
5.7 in
Warmest
September
74°F (23°C)
12.0 in
October
65°F (18°C)
7.4 in
November
56°F (13°C)
4.1 in
December
47°F (8°C)
2.8 in
Shimanto has a seasonal temperature swing of 36°F / from 44°F in January to 79°F in August. Total annual precipitation is 88.5 inches, with June being the wettest month (12.8") and January the driest (2.4").