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Weather & Climate in Okoppe, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Okoppe has a cool climate with an average annual temperature of 41°F (5°C). Winters average 17°F in January while summers reach 62°F in July. The area gets 269 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 37.1 inches. The area receives 11.7 inches of snow annually. The city sits at an elevation of 26 feet.
Temperature
17°F Jan (-8°C)
62°F Jul (17°C)
| Annual Average | 41.1°F |
| 24% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 604.4 sq mi (1,565.5 km²) |
| Population Density | 7/sq mi |
| Coordinates | 44.4694°N, 143.1200°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
220 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.6.
| Jan 15, 1993 | 52 km NE of Otofuke, Japan | M7.6 | 138 km | 102 km |
| Oct 21, 2011 | 16 km NE of Asahikawa, Japan | M6.1 | 82 km | 187 km |
| Feb 19, 2003 | 26 km NNE of Rumoi, Japan | M5.9 | 111 km | 214 km |
| May 23, 1995 | Hokkaido, Japan region | M5.6 | 143 km | 17 km |
| Jun 23, 2023 | 94 km NE of Hamatonbetsu, Japan | M5.6 | 149 km | 314 km |
| Jun 20, 2021 | 29 km NE of Shimo-furano, Japan | M5.3 | 109 km | 152 km |
| Aug 15, 1990 | 43 km ESE of Kamikawa, Japan | M5.3 | 81 km | 162 km |
| Nov 10, 1990 | 23 km W of Nayoro, Japan | M5.1 | 77 km | 16 km |
| Jul 5, 2024 | 10 km WNW of Nayoro, Japan | M5.1 | 64 km | 232 km |
| Aug 10, 2022 | 51 km SSE of Makubetsu, Japan | M5.1 | 97 km | 10 km |
| Aug 13, 2013 | 35 km WSW of Kitami, Japan | M5.1 | 88 km | 178 km |
| May 21, 2013 | 83 km ESE of Makubetsu, Japan | M5.1 | 77 km | 273 km |
| Feb 21, 1990 | 27 km SSW of Nayoro, Japan | M5.1 | 76 km | 33 km |
| Jul 20, 1993 | 33 km W of Nayoro, Japan | M5.0 | 87 km | 18 km |
| Oct 4, 1994 | 29 km E of Makubetsu, Japan | M5.0 | 129 km | 33 km |
| Nov 21, 2009 | 55 km NE of Makubetsu, Japan | M5.0 | 146 km | 305 km |
| Feb 7, 2012 | 37 km ENE of Makubetsu, Japan | M5.0 | 140 km | 315 km |
| May 10, 2005 | 35 km E of Kamikawa, Japan | M5.0 | 77 km | 161 km |
| Sep 22, 1999 | 69 km ENE of Makubetsu, Japan | M5.0 | 128 km | 292 km |
| May 18, 1990 | 4 km ENE of Rumoi, Japan | M4.9 | 128 km | 201 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 0.9 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1938 | E. HOKKAIDO ISLAND | Earthquake | 0.9 m | 1 | 135 km |
| 1956 | NE. HOKKAIDO ISLAND | Earthquake | 0.4 m | — | 80 km |
| 1863 | NW. HOKKAIDO ISLAND | Earthquake | — | — | 129 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Taisetsuzan (92 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Taisetsuzan | Stratovolcano(es) | 2,291 m (7,516 ft) | 1739 | 92 km |
| Maruyama | Stratovolcano(es) | 2,013 m (6,604 ft) | 1898 | 117 km |
| Tokachidake | Stratovolcano(es) | 2,077 m (6,814 ft) | 2004 | 122 km |
| Akan | Caldera | 1,499 m (4,918 ft) | 2008 | 140 km |
| Kussharo | Caldera | 574 m (1,883 ft) | 1320 | 141 km |
| Mashu | Caldera | 857 m (2,812 ft) | 1080 | 152 km |
| Shiretoko-Iozan | Stratovolcano | 1,562 m (5,125 ft) | 1936 | 167 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 2.3 in | |
| February | 17°F (-8°C) | 1.6 in | Coldest, Driest |
| March | 25°F (-4°C) | 2.2 in | |
| April | 38°F (4°C) | 2.2 in | |
| May | 48°F (9°C) | 2.7 in | |
| June | 54°F (12°C) | 2.8 in | |
| July | 62°F (17°C) | 3.7 in | |
| August | 66°F (19°C) | 5.1 in | Warmest, Wettest |
| September | 59°F (15°C) | 5.0 in | |
| October | 48°F (9°C) | 3.8 in | |
| November | 35°F (2°C) | 3.1 in | |
| December | 24°F (-5°C) | 2.5 in |
Okoppe has a seasonal temperature swing of 49°F / from 17°F in February to 66°F in August. Total annual precipitation is 37.1 inches, with August being the wettest month (5.1") and February the driest (1.6").