Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yanagawa enjoys a temperate climate with an average annual temperature of 62°F (16°C). Winters average 42°F in January while summers reach 81°F in July. The area gets 210 sunny days per year. Annual precipitation totals 69.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 3 feet.
Temperature
42°F Jan (6°C)81°F Jul (27°C)
Annual Average
61.5°F
14% above US avg
January Average
42°F (6°C)
July Average
81°F (27°C)
Sunny Days
210 days/yr
Geography
Elevation
3 ft (1 m)
Area
29.8 sq mi (77.2 km²)
Population Density
2,164/sq mi
Coordinates
33.1667°N, 130.4000°W
Timezone
Asia/Tokyo
Precipitation & Snow
Annual Rainfall69.2"
82% above US avg
Snowfall0.0"
Wettest Month (Jun)12.36"
Driest Month (Jan)2.24"
Air Quality
Earthquake History
266 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
53 km
10 km
Mar 20, 2005
28 km NNW of Maebaru-ch??, Japan
M6.6
75 km
10 km
Jun 11, 2006
15 km S of Tsukawaki, Japan
M6.3
70 km
140 km
Mar 13, 2014
32 km SSW of Hikari, Japan
M6.3
144 km
79 km
Apr 14, 2016
2 km SSE of Kumamoto, Japan
M6.2
51 km
9 km
May 13, 1997
1 km WNW of Satsumasendai, Japan
M6.1
150 km
33 km
Mar 26, 1997
16 km NE of Satsumasendai, Japan
M6.1
139 km
10 km
Apr 14, 2016
5 km ENE of Uto, Japan
M6.0
60 km
8 km
Apr 15, 2016
6 km S of Kikuchi, Japan
M5.7
47 km
10 km
Apr 18, 2016
8 km NNE of Aso, Japan
M5.5
67 km
10 km
Apr 19, 2005
8 km NNW of Maebaru-ch??, Japan
M5.5
56 km
19 km
May 22, 1998
9 km NE of Bungo-Takada-shi, Japan
M5.5
115 km
81 km
Apr 15, 2016
10 km NE of Aso, Japan
M5.5
73 km
13 km
Jul 12, 2015
12 km SSW of Usuki, Japan
M5.5
127 km
53 km
Nov 4, 2002
Kyushu, Japan
M5.4
138 km
33 km
Apr 15, 2016
5 km WSW of Aso, Japan
M5.4
64 km
4 km
Feb 12, 1994
4 km WSW of ?kuchi-shinohara, Japan
M5.4
125 km
31 km
Apr 14, 2016
14 km ESE of Kumamoto, Japan
M5.4
62 km
10 km
Apr 19, 2016
6 km NNE of Honmachi, Japan
M5.3
71 km
5 km
Apr 15, 2016
13 km ESE of Kumamoto, Japan
M5.3
60 km
10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
63 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2024
Shanshan
Category 2
104 mph
75 km
2022
Nanmadol
Category 2
104 mph
4 km
2022
Hinnamnor
Category 2
86 mph
242 km
2020
Haishen
Category 2
98 mph
123 km
2020
Maysak
Category 2
92 mph
226 km
2019
Francisco
Category 1
81 mph
35 km
2018
Trami
Category 1
98 mph
242 km
2018
Prapiroon
Category 1
75 mph
132 km
2017
Noru
Category 1
69 mph
234 km
2016
Malakas
Category 3
109 mph
203 km
2016
Chaba
Category 1
81 mph
253 km
2016
Namtheun
Category 1
69 mph
267 km
2015
Goni
Category 3
104 mph
41 km
2014
Halong
Category 1
86 mph
260 km
2013
Danas
Category 2
75 mph
186 km
2012
Sanba
Category 3
104 mph
233 km
2012
Damrey
Category 1
63 mph
294 km
2011
Ma-on
Category 1
86 mph
253 km
2007
Usagi
Category 3
104 mph
92 km
2007
Man-yi
Category 2
86 mph
180 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
47 km
1596
BEPPU BAY, KYUSHU
Eruption + Earthquake
8.0 m
708
122 km
1828
AMAKUSA SEA
Earthquake
—
—
78 km
1715
SEIKAIDO
Earthquake
—
—
122 km
1698
SEIKAIDO-NANKAIDO
Earthquake
—
—
122 km
1619
YATSUSHIRO, JAPAN
Earthquake
—
—
76 km
1597
BEPPU BAY, JAPAN
Eruption + Earthquake
—
40
113 km
744
SW. KYUSHU ISLAND
Earthquake
—
1,520
86 km
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
9 volcanoes within 200 km.
Closest: Unzendake (46 km).
Name
Type
Elevation
Last Eruption
Distance
Unzendake
Complex
1,483 m (4,865 ft)
1996
46 km
Asosan
Caldera
1,592 m (5,223 ft)
2020
73 km
Kujusan
Stratovolcano(es)
1,791 m (5,876 ft)
1996
80 km
Yufu-Tsurumi
Lava dome(s)
1,584 m (5,197 ft)
867
93 km
Kirishimayama
Shield
1,700 m (5,577 ft)
2018
144 km
Fukue
Shield(s)
315 m (1,033 ft)
-400
156 km
Yonemaru-Sumiyoshiike
Maar(s)
40 m (131 ft)
-6200
156 km
Aira
Caldera
1,117 m (3,665 ft)
2020
177 km
Abu
Shield(s)
641 m (2,103 ft)
-6850
185 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
42°F (6°C)
2.2 in
Coldest, Driest
February
44°F (7°C)
2.9 in
March
49°F (10°C)
4.1 in
April
59°F (15°C)
5.8 in
May
67°F (19°C)
6.4 in
June
74°F (23°C)
12.4 in
Wettest
July
81°F (27°C)
11.9 in
August
82°F (28°C)
7.1 in
Warmest
September
75°F (24°C)
7.8 in
October
65°F (18°C)
3.6 in
November
55°F (13°C)
2.7 in
December
46°F (8°C)
2.3 in
Yanagawa has a seasonal temperature swing of 40°F / from 42°F in January to 82°F in August. Total annual precipitation is 69.2 inches, with June being the wettest month (12.4") and January the driest (2.2").