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Iwai, Japan
Full City Profile
4.1
/5.0
A
Great
10,799
Population
43/sq mi density
79 ft
Elevation
24 meters
56°F
Avg Temperature
13°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$27,600 median income, 2.0% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent
Iwai enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 37°F in January while summers reach 76°F in July. The area gets 202 sunny days per year. Annual precipitation totals 74.0 inches. The area receives 0.0 inches of snow annually.
Temperature
37°F Jan (3°C)
76°F Jul (25°C)
| Annual Average | 56.2°F |
| 4% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 202 days/yr |
Geography
| Elevation | 79 ft (24 m) |
| Area | 251.4 sq mi (651.0 km²) |
| Population Density | 43/sq mi |
| Coordinates | 35.5552°N, 134.3631°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
6 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 | 67 km |
| 1711 | SEIONAIKAI, JAPAN | Earthquake | 2.0 m | 1,000 | 143 km |
| 1510 | OSAKA BAY | Earthquake | 2.0 m | — | 142 km |
| 1995 | KOBE, JAPAN | Earthquake | 0.3 m | 6,434 | 125 km |
| 745 | OSAKA BAY, JAPAN | Earthquake | — | — | 136 km |
| 701 | SEA OF JAPAN | Earthquake | — | — | 95 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Oki-Dogo (116 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Oki-Dogo | Shield | 151 m (495 ft) | Unknown | 116 km |
| Sanbesan | Stratovolcano | 1,126 m (3,694 ft) | 650 | 165 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 7.0 in | |
| February | 37°F (3°C) | 6.1 in | Coldest |
| March | 42°F (6°C) | 5.0 in | |
| April | 53°F (12°C) | 4.7 in | Driest |
| May | 61°F (16°C) | 5.0 in | |
| June | 68°F (20°C) | 6.8 in | |
| July | 76°F (25°C) | 7.7 in | |
| August | 78°F (26°C) | 5.0 in | Warmest |
| September | 70°F (21°C) | 9.3 in | Wettest |
| October | 60°F (15°C) | 5.6 in | |
| November | 51°F (10°C) | 5.7 in | |
| December | 42°F (6°C) | 6.1 in |
Iwai has a seasonal temperature swing of 41°F / from 37°F in February to 78°F in August. Total annual precipitation is 74.0 inches, with September being the wettest month (9.3") and April the driest (4.7").