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Weather & Climate in Namioka, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Namioka experiences four distinct seasons with an average annual temperature of 49°F (10°C). Winters average 28°F in January while summers reach 70°F in July. The area gets 243 sunny days per year, above the national average. Annual precipitation totals 51.5 inches (wetter than the 38-inch national average). The area receives 16.5 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 92 feet.
Temperature
28°F Jan (-2°C)
70°F Jul (21°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 243 days/yr |
Geography
| Elevation | 92 ft (28 m) |
| Area | 51.0 sq mi (132.1 km²) |
| Population Density | 405/sq mi |
| Coordinates | 40.7107°N, 140.5905°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
630 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.0.
| Jan 6, 1995 | 63 km ESE of Hachinohe, Japan | M7.0 | 144 km | 27 km |
| Jul 23, 2008 | 29 km ENE of Morioka, Japan | M6.8 | 125 km | 108 km |
| Aug 13, 2001 | 87 km ENE of Misawa, Japan | M6.4 | 149 km | 38 km |
| Mar 17, 2011 | 57 km NNE of Miyako, Japan | M6.2 | 148 km | 29 km |
| Aug 24, 1992 | 9 km NNW of Honch?, Japan | M6.2 | 141 km | 121 km |
| Mar 11, 2011 | 88 km WNW of Noshiro, Japan | M6.2 | 132 km | 10 km |
| Jul 12, 1992 | 70 km ENE of Mutsu, Japan | M6.2 | 147 km | 64 km |
| Aug 10, 2014 | 78 km E of Mutsu, Japan | M6.1 | 139 km | 41 km |
| Oct 14, 2002 | 87 km E of Mutsu, Japan | M6.1 | 149 km | 61 km |
| Sep 3, 1998 | 19 km W of Shizukuishi, Japan | M5.9 | 112 km | 38 km |
| Apr 1, 2024 | 7 km SW of Kuji, Japan | M5.9 | 113 km | 73 km |
| May 5, 2023 | 68 km ENE of Mutsu, Japan | M5.9 | 147 km | 59 km |
| May 23, 2012 | 72 km E of Mutsu, Japan | M5.9 | 143 km | 46 km |
| Mar 11, 2011 | 18 km E of Misawa, Japan | M5.8 | 86 km | 45 km |
| Apr 29, 2008 | 70 km ENE of Mutsu, Japan | M5.8 | 146 km | 47 km |
| Jan 30, 1998 | 70 km ENE of Mutsu, Japan | M5.8 | 146 km | 33 km |
| Sep 13, 2010 | 68 km ENE of Mutsu, Japan | M5.8 | 146 km | 45 km |
| Mar 11, 2011 | 31 km N of T?no, Japan | M5.8 | 149 km | 35 km |
| Jul 26, 1999 | 26 km ENE of Misawa, Japan | M5.7 | 92 km | 104 km |
| Mar 7, 2017 | 62 km ENE of Mutsu, Japan | M5.7 | 142 km | 56 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
5 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2019 | Hagibis | Category 1 | 69 mph | 298 km |
| 2002 | Higos | Category 1 | 75 mph | 72 km |
| 2000 | Kirogi | Category 1 | 63 mph | 260 km |
| 1998 | Vicki | Category 1 | 58 mph | 103 km |
| 1995 | Ryan | Category 1 | 40 mph | 234 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
18 tsunamis recorded within 500 km. Highest wave on record: 90.0 m (295 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1741 | W. HOKKAIDO ISLAND | Explosion | 90.0 m | 2,000 | 135 km |
| 1983 | NOSHIRO, JAPAN | Earthquake | 14.9 m | 104 | 129 km |
| 1763 | SANRIKU | Earthquake | 5.0 m | — | 119 km |
| 1793 | W. OFF AOMORI | Earthquake | 1.8 m | 12 | 56 km |
| 1939 | NW. HONSHU ISLAND | Earthquake | 1.2 m | 27 | 115 km |
| 1983 | N. HONSHU ISLAND | Earthquake | 1.0 m | — | 144 km |
| 1810 | NW. HONSHU ISLAND | Earthquake | 1.0 m | 57 | 108 km |
| 2025 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.7 m | — | 137 km |
| 1983 | NOSHIRO, JAPAN | Earthquake | 0.6 m | — | 148 km |
| 1964 | NW. HONSHU ISLAND | Earthquake | 0.6 m | — | 142 km |
| 1912 | SANRIKU | Earthquake | 0.5 m | — | 121 km |
| 1945 | SANRIKU | Earthquake | 0.4 m | 2 | 129 km |
| 1901 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.3 m | 18 | 145 km |
| 1964 | NW. HONSHU ISLAND | Earthquake | 0.1 m | — | 147 km |
| 1964 | NW. HONSHU ISLAND | Earthquake | — | — | 139 km |
| 1766 | SANRIKU | Earthquake | — | 1,700 | 23 km |
| 1763 | SANRIKU, HACHIONHE | Earthquake | — | — | 119 km |
| 1341 | JUSANKO, TSUGARU AOMORI PREFECTURE | Earthquake | — | 2,600 | 97 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
14 volcanoes within 200 km. Closest: Hakkodasan (25 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hakkodasan | Stratovolcano(es) | 1,585 m (5,200 ft) | 1550 | 25 km |
| Iwakisan | Stratovolcano | 1,625 m (5,331 ft) | 1863 | 25 km |
| Towada | Caldera | 1,011 m (3,317 ft) | 915 | 33 km |
| Osorezan | Stratovolcano | 878 m (2,881 ft) | 1787 | 77 km |
| Akita-Yakeyama | Stratovolcano | 1,366 m (4,482 ft) | 1997 | 84 km |
| Hachimantai | Stratovolcano | 1,613 m (5,292 ft) | -5350 | 87 km |
| Iwatesan | Complex | 2,038 m (6,686 ft) | 1919 | 102 km |
| Akita-Komagatake | Stratovolcano(es) | 1,637 m (5,371 ft) | 1971 | 107 km |
| Megata | Maar(s) | 291 m (955 ft) | -2050 | 112 km |
| Esan | Lava dome(s) | 618 m (2,028 ft) | 1874 | 131 km |
| Oshima-Oshima | Stratovolcano | 732 m (2,402 ft) | 1790 | 136 km |
| Hokkaido-Komagatake | Stratovolcano | 1,131 m (3,711 ft) | 2000 | 151 km |
| Chokaisan | Stratovolcano(es) | 2,236 m (7,336 ft) | 1974 | 185 km |
| Kurikomayama | Stratovolcano | 1,627 m (5,338 ft) | 1950 | 195 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 4.6 in | Coldest |
| February | 29°F (-2°C) | 3.8 in | |
| March | 35°F (1°C) | 3.2 in | |
| April | 46°F (8°C) | 3.0 in | Driest |
| May | 55°F (13°C) | 3.1 in | |
| June | 62°F (17°C) | 3.5 in | |
| July | 70°F (21°C) | 4.6 in | |
| August | 73°F (23°C) | 5.6 in | Warmest |
| September | 66°F (19°C) | 5.9 in | Wettest |
| October | 54°F (12°C) | 4.7 in | |
| November | 43°F (6°C) | 4.8 in | |
| December | 33°F (0°C) | 4.9 in |
Namioka has a seasonal temperature swing of 46°F / from 28°F in January to 73°F in August. Total annual precipitation is 51.5 inches, with September being the wettest month (5.9") and April the driest (3.0").