Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yanaizu experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 30°F in January while summers reach 73°F in July. The area gets 236 sunny days per year, above the national average. Annual precipitation totals 55.1 inches (wetter than the 38-inch national average). The area receives 13.5 inches of snow annually. The city sits at an elevation of 728 feet.
Temperature
30°F Jan (-1°C)73°F Jul (23°C)
Annual Average
51.9°F
4% below US avg
January Average
30°F (-1°C)
July Average
73°F (23°C)
Sunny Days
236 days/yr
Geography
Elevation
728 ft (222 m)
Area
150.8 sq mi (390.7 km²)
Population Density
22/sq mi
Coordinates
37.5242°N, 139.7217°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall55.1"
45% above US avg
Snowfall13.5"
Wettest Month (Jul)6.46"
Driest Month (Apr)3.35"
Air Quality
Earthquake History
1,267 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M6.6.
Jul 16, 2007
20 km NNW of Kashiwazaki, Japan
M6.6
113 km
12 km
Apr 11, 2011
17 km SSW of Ishikawa, Japan
M6.6
84 km
11 km
Jun 18, 2019
31 km WSW of Tsuruoka, Japan
M6.4
126 km
12 km
Jul 24, 2011
43 km NE of Namie, Japan
M6.3
149 km
40 km
Jul 30, 2011
13 km SSE of Iwaki, Japan
M6.3
127 km
38 km
Mar 11, 2011
30 km NNE of Namie, Japan
M6.3
131 km
32 km
Mar 11, 2011
13 km E of Arai, Japan
M6.2
132 km
9 km
May 13, 2011
31 km ESE of Namie, Japan
M6.1
144 km
35 km
Jul 25, 2003
7 km NW of Matsushima, Japan
M6.1
149 km
6 km
Mar 12, 2011
29 km SSE of Namie, Japan
M6.1
131 km
38 km
Mar 11, 2011
17 km ESE of Namie, Japan
M6.0
130 km
49 km
Mar 11, 2011
15 km E of Namie, Japan
M6.0
128 km
37 km
Apr 12, 2011
8 km WSW of Ishikawa, Japan
M5.9
74 km
11 km
Mar 11, 2011
4 km SSW of Namie, Japan
M5.9
112 km
40 km
May 11, 1997
5 km NNE of Iwaki, Japan
M5.9
116 km
49 km
Feb 25, 2013
29 km NE of Numata, Japan
M5.8
87 km
10 km
Apr 16, 2011
6 km ENE of Tanuma, Japan
M5.8
128 km
77 km
Aug 11, 2011
1 km SSE of Iwaki, Japan
M5.8
117 km
44 km
Apr 11, 2011
14 km SSE of Marumori, Japan
M5.8
101 km
10 km
Jul 16, 2007
16 km NNW of Kashiwazaki, Japan
M5.7
111 km
15 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
21 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2019
Faxai
Category 2
92 mph
177 km
2019
Hagibis
Category 1
81 mph
98 km
2018
Jebi
Category 1
81 mph
277 km
2011
Roke
Category 1
86 mph
187 km
2007
Fitow
Category 1
75 mph
219 km
2005
Mawar
Category 2
75 mph
204 km
2004
Ma-on
Category 3
81 mph
177 km
2002
Higos
Category 1
81 mph
121 km
2001
Danas
Category 1
63 mph
139 km
2000
Kirogi
Category 1
81 mph
181 km
1998
Vicki
Category 2
63 mph
112 km
1998
Stella
Category 1
69 mph
147 km
1996
Violet
Category 1
81 mph
244 km
1996
Kirk
Category 1
63 mph
298 km
1995
Oscar
Category 3
98 mph
298 km
1995
Ryan
Category 1
40 mph
290 km
1994
Orchid
Category 1
63 mph
271 km
1993
Vernon
Category 1
75 mph
161 km
1990
Flo
Category 1
58 mph
261 km
1981
Thad
Category 1
—
173 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
9 tsunamis recorded within 500 km.
Highest wave on record: 5.8 m (19 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1964
NW. HONSHU ISLAND
Earthquake
5.8 m
36
105 km
2016
E. COAST HONSHU ISLAND
Earthquake
1.4 m
—
148 km
2019
NIIGATA
Earthquake
0.1 m
—
127 km
2007
HONSHU: W COAST
Earthquake
—
15
110 km
1802
NW. HONSHU ISLAND
Earthquake
—
19
127 km
1762
NW. HONSHU ISLAND
Earthquake
—
—
110 km
1751
NW. HONSHU ISLAND
Eruption + Earthquake
—
2,100
148 km
1448
SADO, JAPAN
Earthquake
—
—
134 km
887
NIIGATA
Earthquake
—
2,000
143 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km.
Closest: Numazawa (16 km).
Name
Type
Elevation
Last Eruption
Distance
Numazawa
Shield
835 m (2,740 ft)
-3400
16 km
Bandaisan
Stratovolcano
1,816 m (5,958 ft)
1888
32 km
Nasudake
Stratovolcano(es)
1,915 m (6,283 ft)
1963
49 km
Adatarayama
Stratovolcano(es)
1,728 m (5,669 ft)
1996
51 km
Azumayama
Stratovolcano(es)
1,949 m (6,394 ft)
1977
52 km
Takaharayama
Stratovolcano
1,795 m (5,889 ft)
-4570
70 km
Hiuchigatake
Stratovolcano
2,356 m (7,730 ft)
1544
74 km
Omanago Group
Lava dome(s)
2,341 m (7,680 ft)
-3050
83 km
Nikko-Shiranesan
Shield
2,578 m (8,458 ft)
1952
86 km
Nantaisan
Stratovolcano
2,486 m (8,156 ft)
-9540
87 km
Zaozan [Zaosan]
Complex
1,841 m (6,040 ft)
1940
93 km
Akagisan
Stratovolcano
1,828 m (5,997 ft)
Unknown
117 km
Harunasan
Stratovolcano
1,449 m (4,754 ft)
550
140 km
Shiga
Shield(s)
2,041 m (6,696 ft)
Unknown
142 km
Kusatsu-Shiranesan
Stratovolcano(es)
2,165 m (7,103 ft)
2018
146 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
30°F (-1°C)
4.9 in
Coldest
February
31°F (-1°C)
3.8 in
March
36°F (2°C)
3.5 in
April
49°F (9°C)
3.4 in
Driest
May
59°F (15°C)
3.4 in
June
66°F (19°C)
5.0 in
July
73°F (23°C)
6.5 in
Wettest
August
76°F (24°C)
5.2 in
Warmest
September
67°F (20°C)
5.9 in
October
56°F (13°C)
4.5 in
November
45°F (7°C)
4.3 in
December
36°F (2°C)
4.8 in
Yanaizu has a seasonal temperature swing of 46°F / from 30°F in January to 76°F in August. Total annual precipitation is 55.1 inches, with July being the wettest month (6.5") and April the driest (3.4").