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Weather & Climate in Oshidomari, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Oshidomari has a cool climate with an average annual temperature of 40°F (5°C). Winters average 18°F in January while summers reach 61°F in July. The area gets 254 sunny days per year, above the national average. Annual precipitation totals 45.4 inches. The area receives 18.1 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 144 feet.
Temperature
18°F Jan (-8°C)
61°F Jul (16°C)
| Annual Average | 40.4°F |
| 25% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 254 days/yr |
Geography
| Elevation | 144 ft (44 m) |
| Area | 29.5 sq mi (76.5 km²) |
| Population Density | 83/sq mi |
| Coordinates | 45.2419°N, 141.2108°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
228 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.2.
| Jan 11, 2016 | 74 km NW of Rumoi, Japan | M6.2 | 86 km | 239 km |
| Jun 16, 1992 | 50 km NE of Makubetsu, Japan | M6.0 | 97 km | 317 km |
| Jul 2, 2022 | 58 km SSE of Shebunino, Russia | M5.9 | 99 km | 309 km |
| Feb 19, 2003 | 26 km NNE of Rumoi, Japan | M5.9 | 130 km | 214 km |
| Aug 20, 1990 | 42 km SE of Shebunino, Russia | M5.7 | 135 km | 309 km |
| Feb 9, 1993 | 38 km NNE of Makubetsu, Japan | M5.6 | 77 km | 307 km |
| Feb 9, 2002 | 61 km S of Korsakov, Russia | M5.5 | 150 km | 349 km |
| Jan 22, 2013 | 77 km SSW of Rishiri Town, Japan | M5.4 | 87 km | 235 km |
| Jan 24, 1993 | 51 km NNE of Makubetsu, Japan | M5.3 | 94 km | 306 km |
| Apr 23, 2017 | 37 km SE of Shebunino, Russia | M5.2 | 128 km | 10 km |
| Nov 25, 2013 | 51 km N of Wakkanai, Japan | M5.1 | 80 km | 20 km |
| Aug 19, 2011 | 76 km NE of Makubetsu, Japan | M5.1 | 121 km | 308 km |
| May 21, 2013 | 83 km ESE of Makubetsu, Japan | M5.1 | 128 km | 273 km |
| Sep 22, 2012 | 39 km S of Shebunino, Russia | M5.1 | 108 km | 319 km |
| Nov 10, 1990 | 23 km W of Nayoro, Japan | M5.1 | 123 km | 16 km |
| Aug 10, 2022 | 51 km SSE of Makubetsu, Japan | M5.1 | 77 km | 10 km |
| Jul 5, 2024 | 10 km WNW of Nayoro, Japan | M5.1 | 131 km | 232 km |
| Feb 21, 1990 | 27 km SSW of Nayoro, Japan | M5.1 | 149 km | 33 km |
| Sep 22, 1999 | 69 km ENE of Makubetsu, Japan | M5.0 | 119 km | 292 km |
| Apr 23, 2015 | 44 km NNE of Makubetsu, Japan | M5.0 | 88 km | 310 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1971 | TATAR STRAIT | Earthquake | 2.0 m | — | 143 km |
| 1971 | TATAR STRAIT | Earthquake | 0.1 m | — | 129 km |
| 1971 | TATAR STRAIT | Earthquake | 0.1 m | — | 120 km |
| 1971 | TATAR STRAIT | Earthquake | 0.0 m | — | 129 km |
| 1863 | NW. HOKKAIDO ISLAND | Earthquake | — | — | 75 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 3.7 in | Coldest |
| February | 19°F (-7°C) | 2.6 in | |
| March | 25°F (-4°C) | 2.4 in | |
| April | 36°F (2°C) | 2.3 in | Driest |
| May | 45°F (7°C) | 2.8 in | |
| June | 53°F (12°C) | 2.7 in | |
| July | 61°F (16°C) | 3.9 in | |
| August | 64°F (18°C) | 5.0 in | Warmest |
| September | 58°F (14°C) | 5.3 in | |
| October | 48°F (9°C) | 5.3 in | Wettest |
| November | 34°F (1°C) | 5.0 in | |
| December | 25°F (-4°C) | 4.5 in |
Oshidomari has a seasonal temperature swing of 46°F / from 18°F in January to 64°F in August. Total annual precipitation is 45.4 inches, with October being the wettest month (5.3") and April the driest (2.3").