Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wakasugi enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 39°F in January while summers reach 77°F in July. The area gets 203 sunny days per year. Annual precipitation totals 73.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 322 feet.
Temperature
39°F Jan (4°C)77°F Jul (25°C)
Annual Average
58.1°F
8% above US avg
January Average
39°F (4°C)
July Average
77°F (25°C)
Sunny Days
203 days/yr
Geography
Elevation
322 ft (98 m)
Area
18.7 sq mi (48.4 km²)
Population Density
2,577/sq mi
Coordinates
33.6094°N, 130.5263°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall73.9"
94% above US avg
Snowfall0.0"
Wettest Month (Jul)13.19"
Driest Month (Dec)2.44"
Air Quality
Earthquake History
235 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M7.0.
Apr 15, 2016
6 km ESE of Kumamoto, Japan
M7.0
94 km
10 km
Mar 20, 2005
28 km NNW of Maebaru-ch??, Japan
M6.6
43 km
10 km
Mar 13, 2014
32 km SSW of Hikari, Japan
M6.3
121 km
79 km
Jun 11, 2006
15 km S of Tsukawaki, Japan
M6.3
78 km
140 km
Apr 14, 2016
2 km SSE of Kumamoto, Japan
M6.2
93 km
9 km
Apr 14, 2016
5 km ENE of Uto, Japan
M6.0
103 km
8 km
Jun 25, 1997
17 km E of Hagi, Japan
M5.9
132 km
10 km
Apr 15, 2016
6 km S of Kikuchi, Japan
M5.7
81 km
10 km
May 22, 1998
9 km NE of Bungo-Takada-shi, Japan
M5.5
92 km
81 km
Apr 19, 2005
8 km NNW of Maebaru-ch??, Japan
M5.5
32 km
19 km
Jul 12, 2015
12 km SSW of Usuki, Japan
M5.5
131 km
53 km
Apr 18, 2016
8 km NNE of Aso, Japan
M5.5
85 km
10 km
Apr 15, 2016
10 km NE of Aso, Japan
M5.5
89 km
13 km
Apr 15, 2016
5 km WSW of Aso, Japan
M5.4
90 km
4 km
Apr 14, 2016
14 km ESE of Kumamoto, Japan
M5.4
100 km
10 km
Apr 19, 2016
6 km NNE of Honmachi, Japan
M5.3
117 km
5 km
Apr 14, 2016
4 km NNE of Uto, Japan
M5.3
101 km
10 km
Apr 15, 2016
13 km ESE of Kumamoto, Japan
M5.3
98 km
10 km
Apr 15, 2016
5 km ENE of Uto, Japan
M5.3
102 km
10 km
Oct 28, 1991
13 km SSW of Ube, Japan
M5.2
69 km
17 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
55 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2024
Shanshan
Category 2
98 mph
125 km
2022
Nanmadol
Category 2
98 mph
7 km
2022
Hinnamnor
Category 2
86 mph
215 km
2020
Haishen
Category 2
98 mph
143 km
2020
Maysak
Category 2
92 mph
216 km
2019
Francisco
Category 1
81 mph
79 km
2018
Trami
Category 1
98 mph
273 km
2018
Prapiroon
Category 1
75 mph
125 km
2017
Noru
Category 1
69 mph
253 km
2016
Malakas
Category 2
86 mph
235 km
2016
Chaba
Category 1
75 mph
240 km
2015
Goni
Category 3
104 mph
32 km
2014
Halong
Category 1
81 mph
265 km
2013
Danas
Category 1
75 mph
188 km
2012
Sanba
Category 3
98 mph
231 km
2011
Ma-on
Category 1
86 mph
265 km
2007
Usagi
Category 3
98 mph
72 km
2007
Man-yi
Category 2
86 mph
209 km
2006
Shanshan
Category 2
98 mph
45 km
2005
Nabi
Category 2
92 mph
12 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
8 tsunamis recorded within 500 km.
Highest wave on record: 55.0 m (180 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1792
SHIMABARA BAY, KYUSHU ISLAND
Landslide
55.0 m
15,000
98 km
1596
BEPPU BAY, KYUSHU
Eruption + Earthquake
8.0 m
708
114 km
1828
AMAKUSA SEA
Earthquake
—
—
127 km
1715
SEIKAIDO
Earthquake
—
—
114 km
1698
SEIKAIDO-NANKAIDO
Earthquake
—
—
114 km
1619
YATSUSHIRO, JAPAN
Earthquake
—
—
124 km
1597
BEPPU BAY, JAPAN
Eruption + Earthquake
—
40
105 km
744
SW. KYUSHU ISLAND
Earthquake
—
1,520
135 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
7 volcanoes within 200 km.
Closest: Yufu-Tsurumi (88 km).
Name
Type
Elevation
Last Eruption
Distance
Yufu-Tsurumi
Lava dome(s)
1,584 m (5,197 ft)
867
88 km
Kujusan
Stratovolcano(es)
1,791 m (5,876 ft)
1996
89 km
Unzendake
Complex
1,483 m (4,865 ft)
1996
97 km
Asosan
Caldera
1,592 m (5,223 ft)
2020
97 km
Abu
Shield(s)
641 m (2,103 ft)
-6850
140 km
Fukue
Shield(s)
315 m (1,033 ft)
-400
189 km
Kirishimayama
Shield
1,700 m (5,577 ft)
2018
189 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
39°F (4°C)
3.0 in
Coldest
February
40°F (5°C)
3.4 in
March
46°F (8°C)
4.7 in
April
55°F (13°C)
6.2 in
May
63°F (17°C)
6.7 in
June
70°F (21°C)
12.5 in
July
77°F (25°C)
13.2 in
Wettest
August
79°F (26°C)
7.1 in
Warmest
September
72°F (22°C)
7.8 in
October
62°F (17°C)
3.9 in
November
52°F (11°C)
3.1 in
December
43°F (6°C)
2.4 in
Driest
Wakasugi has a seasonal temperature swing of 39°F / from 39°F in January to 79°F in August. Total annual precipitation is 73.9 inches, with July being the wettest month (13.2") and December the driest (2.4").