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Iwaki, Japan
Full City Profile
4.1
/5.0
A
Great
357,309
Population
361/sq mi density
30 ft
Elevation
9 meters
55°F
Avg Temperature
13°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.1 / 5.0
$28,300 median income, 2.7% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent
Iwaki experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 37°F in January while summers reach 71°F in July. The area gets 243 sunny days per year. Annual precipitation totals 51.3 inches. The area receives 0.0 inches of snow annually.
Temperature
37°F Jan (3°C)
71°F Jul (22°C)
| Annual Average | 54.9°F |
| 2% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 243 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 990.8 sq mi (2,566.3 km²) |
| Population Density | 361/sq mi |
| Coordinates | 37.0500°N, 140.8833°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
20 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1835 | SANRIKU | Earthquake | 5.0 m | — | 130 km |
| 2016 | E. COAST HONSHU ISLAND | Earthquake | 1.4 m | — | 59 km |
| 1938 | OFF FUKUSHIMA PREFECTURE | Earthquake | 1.3 m | — | 95 km |
| 1938 | OFF FUKUSHIMA PREFECTURE | Earthquake | 1.3 m | — | 73 km |
| 1897 | SANRIKU | Earthquake | 1.0 m | — | 147 km |
| 1938 | JAPAN TRENCH | Earthquake | 0.8 m | — | 60 km |
| 1959 | SANRIKU | Earthquake | 0.8 m | — | 127 km |
| 1938 | SANRIKU | Earthquake | 0.8 m | — | 55 km |
| 1938 | SANRIKU | Earthquake | 0.6 m | 1 | 73 km |
| 1938 | SANRIKU | Earthquake | 0.6 m | — | 74 km |
| 1982 | IBARAKI, JAPAN | Earthquake | 0.4 m | — | 120 km |
| 1961 | KASHIMA, JAPAN | Earthquake | 0.4 m | — | 131 km |
| 1961 | KASHIMA, JAPAN | Earthquake | 0.4 m | — | 148 km |
| 2022 | OFF FUKUSHIMA PREFECTURE | Earthquake | 0.3 m | 4 | 96 km |
| 1938 | SANRIKU | Earthquake | 0.3 m | — | 115 km |
| 1896 | KASHIMA, JAPAN | Earthquake | 0.3 m | — | 62 km |
| 2014 | SANRIKU | Earthquake | 0.2 m | — | 139 km |
| 2008 | OFF EAST COAST OF HONSHU ISLAND | Earthquake | 0.2 m | — | 130 km |
| 1938 | SANRIKU | Earthquake | 0.2 m | — | 117 km |
| 1935 | JAPAN | Earthquake | 0.2 m | — | 68 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
14 volcanoes within 200 km. Closest: Nasudake (82 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 82 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 85 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 94 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 95 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 100 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 125 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 126 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 128 km |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 128 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 137 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 142 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 160 km |
| Naruko | Caldera | 470 m (1,542 ft) | 837 | 187 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 1.5 in | Coldest, Driest |
| February | 38°F (3°C) | 2.2 in | |
| March | 42°F (6°C) | 3.5 in | |
| April | 51°F (11°C) | 4.7 in | |
| May | 59°F (15°C) | 5.2 in | |
| June | 65°F (18°C) | 6.1 in | |
| July | 71°F (22°C) | 4.8 in | |
| August | 75°F (24°C) | 5.4 in | Warmest |
| September | 69°F (21°C) | 7.1 in | Wettest |
| October | 60°F (16°C) | 6.3 in | |
| November | 51°F (10°C) | 3.1 in | |
| December | 42°F (6°C) | 1.5 in |
Iwaki has a seasonal temperature swing of 37°F / from 37°F in January to 75°F in August. Total annual precipitation is 51.3 inches, with September being the wettest month (7.1") and January the driest (1.5").