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Weather & Climate in Tosashimizu, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tosashimizu enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 45°F in January while summers reach 78°F in July. The area gets 172 sunny days per year. Annual precipitation totals 91.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 217 feet.
Temperature
45°F Jan (7°C)
78°F Jul (26°C)
| Annual Average | 62.1°F |
| 15% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 172 days/yr |
Geography
| Elevation | 217 ft (66 m) |
| Area | 639.4 sq mi (1,656.0 km²) |
| Population Density | 19/sq mi |
| Coordinates | 32.7840°N, 132.9632°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
231 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Mar 24, 2001 | 16 km SSW of Kure, Japan | M6.8 | 150 km | 50 km |
| Mar 13, 2014 | 32 km SSW of Hikari, Japan | M6.3 | 146 km | 79 km |
| Jan 21, 2022 | 27 km SSE of Saiki, Japan | M6.3 | 87 km | 39 km |
| Apr 17, 2024 | 18 km W of Uwajima, Japan | M6.3 | 76 km | 32 km |
| Aug 28, 2014 | 53 km E of Takanabe, Japan | M5.8 | 114 km | 20 km |
| Apr 25, 2001 | 18 km SE of Saiki, Japan | M5.7 | 88 km | 33 km |
| May 9, 2019 | 46 km ESE of Miyazaki, Japan | M5.6 | 149 km | 22 km |
| Jul 12, 2015 | 12 km SSW of Usuki, Japan | M5.5 | 116 km | 53 km |
| Mar 27, 2006 | 45 km SSE of Saiki, Japan | M5.5 | 78 km | 35 km |
| Aug 16, 2025 | 32 km ESE of Takanabe, Japan | M5.5 | 138 km | 30 km |
| Nov 4, 2002 | Kyushu, Japan | M5.4 | 139 km | 33 km |
| Mar 2, 2017 | 39 km SSE of Saiki, Japan | M5.3 | 82 km | 44 km |
| Mar 27, 2019 | 57 km E of Takanabe, Japan | M5.3 | 107 km | 19 km |
| Jul 17, 2021 | 29 km NE of Kitsuki, Japan | M5.2 | 141 km | 64 km |
| Jan 13, 2025 | 24 km ESE of Takanabe, Japan | M5.2 | 145 km | 40 km |
| Mar 27, 2019 | 45 km E of Takanabe, Japan | M5.2 | 116 km | 17 km |
| Mar 25, 2001 | 22 km WNW of H?j?, Japan | M5.2 | 143 km | 43 km |
| Aug 25, 2015 | 22 km ESE of Takanabe, Japan | M5.2 | 140 km | 36 km |
| Jan 29, 2012 | 13 km E of Nobeoka, Japan | M5.1 | 111 km | 62 km |
| Apr 15, 2016 | 13 km SW of Saiki, Japan | M5.1 | 109 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
63 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Shanshan | Category 3 | 109 mph | 251 km |
| 2023 | Lan | Category 1 | 69 mph | 274 km |
| 2022 | Nanmadol | Category 3 | 104 mph | 238 km |
| 2020 | Chan-hom | Category 1 | 81 mph | 234 km |
| 2019 | Francisco | Category 1 | 81 mph | 148 km |
| 2018 | Jebi | Category 3 | 98 mph | 89 km |
| 2018 | Trami | Category 1 | 98 mph | 54 km |
| 2018 | Cimaron | Category 1 | 92 mph | 135 km |
| 2017 | Noru | Category 1 | 69 mph | 32 km |
| 2016 | Malakas | Category 2 | 86 mph | 50 km |
| 2015 | Goni | Category 3 | 104 mph | 240 km |
| 2015 | Nangka | Category 1 | 86 mph | 127 km |
| 2014 | Phanfone | Category 2 | 98 mph | 141 km |
| 2014 | Halong | Category 1 | 86 mph | 24 km |
| 2012 | Jelawat | Category 1 | 98 mph | 168 km |
| 2011 | Roke | Category 4 | 98 mph | 203 km |
| 2011 | Ma-on | Category 1 | 86 mph | 24 km |
| 2009 | Melor | Category 1 | 92 mph | 196 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 111 km |
| 2007 | Usagi | Category 3 | 104 mph | 130 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
17 tsunamis recorded within 500 km. Highest wave on record: 8.0 m (26 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 131 km |
| 1968 | SEIKAIDO | Earthquake | 3.1 m | 1 | 69 km |
| 684 | NANKAIDO | Earthquake | 3.0 m | — | 102 km |
| 1769 | SW. KYUSHU ISLAND | Earthquake | 2.5 m | — | 105 km |
| 1941 | SEIKAIDO | Earthquake | 1.2 m | 2 | 119 km |
| 1939 | SEIKAIDO | Earthquake | 0.8 m | 1 | 105 km |
| 1931 | SEIKAIDO | Earthquake | 0.8 m | 1 | 104 km |
| 1929 | HYUGANADA SEA | Earthquake | 0.7 m | — | 140 km |
| 1970 | SEIKAIDO | Earthquake | 0.3 m | — | 135 km |
| 1899 | SEIKAIDO | Earthquake | 0.3 m | — | 134 km |
| 1984 | KYUSHU, JAPAN | Earthquake | 0.2 m | — | 105 km |
| 1969 | RYUKYU ISLANDS | Earthquake | 0.1 m | — | 104 km |
| 1987 | KYUSHU ISLAND | Earthquake | 0.0 m | 2 | 135 km |
| 1899 | SEIKAIDO | Earthquake | — | — | 63 km |
| 1715 | SEIKAIDO | Earthquake | — | — | 131 km |
| 1698 | SEIKAIDO-NANKAIDO | Earthquake | — | — | 131 km |
| 1597 | BEPPU BAY, JAPAN | Eruption + Earthquake | — | 40 | 139 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Yufu-Tsurumi (157 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 157 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 164 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 174 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 2.4 in | Coldest, Driest |
| February | 46°F (8°C) | 4.0 in | |
| March | 51°F (11°C) | 6.3 in | |
| April | 60°F (15°C) | 9.2 in | |
| May | 66°F (19°C) | 10.4 in | |
| June | 72°F (22°C) | 13.1 in | Wettest |
| July | 78°F (26°C) | 12.4 in | |
| August | 80°F (27°C) | 5.9 in | Warmest |
| September | 75°F (24°C) | 12.4 in | |
| October | 67°F (19°C) | 7.8 in | |
| November | 58°F (14°C) | 4.3 in | |
| December | 49°F (9°C) | 2.8 in |
Tosashimizu has a seasonal temperature swing of 35°F / from 45°F in January to 80°F in August. Total annual precipitation is 91.1 inches, with June being the wettest month (13.1") and January the driest (2.4").