Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tatsunochō-tominaga enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 38°F in January while summers reach 77°F in July. The area gets 234 sunny days per year, above the national average. Annual precipitation totals 56.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 92 feet.
Temperature
38°F Jan (3°C)77°F Jul (25°C)
Annual Average
57.3°F
6% above US avg
January Average
38°F (3°C)
July Average
77°F (25°C)
Sunny Days
234 days/yr
Geography
Elevation
92 ft (28 m)
Area
130.1 sq mi (337.0 km²)
Population Density
308/sq mi
Coordinates
34.8644°N, 134.5520°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall56.2"
48% above US avg
Snowfall0.0"
Wettest Month (Sep)8.31"
Driest Month (Dec)1.77"
Air Quality
Earthquake History
264 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
53 km
22 km
Oct 6, 2000
8 km ESE of Matsue, Japan
M6.7
145 km
10 km
Apr 11, 1990
11 km ENE of Maizuru, Japan
M6.1
106 km
362 km
Apr 12, 2013
6 km WNW of Sumoto, Japan
M5.8
61 km
14 km
Aug 7, 1992
21 km N of Miyazu, Japan
M5.8
110 km
358 km
Aug 20, 1999
22 km SE of Kainan, Japan
M5.7
122 km
66 km
Apr 21, 2000
27 km NNE of Maizuru, Japan
M5.5
123 km
347 km
Jun 17, 2018
near the south coast of western Honshu, Japan
M5.5
99 km
10 km
Aug 28, 1991
9 km SSW of Yasugich?, Japan
M5.5
133 km
13 km
Oct 8, 2000
32 km N of Sh?bara, Japan
M5.4
141 km
10 km
Sep 24, 2003
5 km WNW of Ayabe, Japan
M5.4
77 km
372 km
Jan 11, 2001
15 km E of Tottori, Japan
M5.3
70 km
33 km
Sep 16, 2002
24 km SW of Kurayoshi, Japan
M5.3
93 km
10 km
Sep 3, 1997
21 km S of Yasugich?, Japan
M5.3
128 km
10 km
Oct 8, 2000
8 km SSW of Yonago, Japan
M5.2
126 km
10 km
Mar 13, 2019
22 km ESE of Anan, Japan
M5.2
120 km
37 km
Mar 16, 1999
10 km WNW of Kitahama, Japan
M5.1
122 km
33 km
Apr 26, 2007
15 km ESE of Niihama, Japan
M5.1
147 km
50 km
Apr 16, 1994
16 km ENE of Maizuru, Japan
M5.0
112 km
358 km
Jul 5, 2011
12 km NNW of Gob?, Japan
M5.0
111 km
16 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
46 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2023
Lan
Category 2
75 mph
167 km
2018
Jebi
Category 3
98 mph
70 km
2018
Trami
Category 1
92 mph
147 km
2018
Cimaron
Category 1
86 mph
32 km
2018
Jongdari
Category 1
75 mph
237 km
2017
Lan
Category 1
98 mph
293 km
2017
Noru
Category 1
69 mph
109 km
2016
Malakas
Category 1
86 mph
249 km
2015
Nangka
Category 1
81 mph
209 km
2014
Phanfone
Category 2
92 mph
222 km
2014
Halong
Category 1
81 mph
237 km
2012
Jelawat
Category 1
92 mph
254 km
2011
Roke
Category 3
98 mph
233 km
2011
Ma-on
Category 1
86 mph
141 km
2009
Melor
Category 1
86 mph
211 km
2008
Sinlaku
Category 1
75 mph
227 km
2007
Usagi
Category 2
92 mph
250 km
2007
Man-yi
Category 1
81 mph
290 km
2005
Nabi
Category 1
75 mph
297 km
2004
Songda
Category 2
86 mph
219 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
9 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
96 km
1711
SEIONAIKAI, JAPAN
Earthquake
2.0 m
1,000
81 km
1510
OSAKA BAY
Earthquake
2.0 m
—
83 km
1808
E. AWA, TOKUSHIMA PREFECTURE
Earthquake
1.5 m
—
110 km
1995
KOBE, JAPAN
Earthquake
0.3 m
6,434
56 km
1791
OASAKA BAY
Earthquake
—
—
88 km
1331
OFF TANABE, WAKAYAMA PREFECTURE
Earthquake
—
—
143 km
745
OSAKA BAY, JAPAN
Earthquake
—
—
74 km
701
SEA OF JAPAN
Earthquake
—
—
121 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km.
Closest: Sanbesan (179 km).
Name
Type
Elevation
Last Eruption
Distance
Sanbesan
Stratovolcano
1,126 m (3,694 ft)
650
179 km
Oki-Dogo
Shield
151 m (495 ft)
Unknown
183 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
38°F (3°C)
2.2 in
Coldest
February
38°F (3°C)
2.6 in
March
43°F (6°C)
3.8 in
April
54°F (12°C)
5.2 in
May
62°F (17°C)
5.6 in
June
70°F (21°C)
8.2 in
July
77°F (25°C)
7.0 in
August
79°F (26°C)
4.3 in
Warmest
September
72°F (22°C)
8.3 in
Wettest
October
61°F (16°C)
4.4 in
November
51°F (11°C)
3.0 in
December
42°F (6°C)
1.8 in
Driest
Tatsunochō-tominaga has a seasonal temperature swing of 42°F / from 38°F in January to 79°F in August. Total annual precipitation is 56.2 inches, with September being the wettest month (8.3") and December the driest (1.8").