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Weather & Climate in Guanshan, Taiwan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Guanshan enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 54°F in January while summers reach 71°F in July / relatively mild seasonal variation. The area gets 186 sunny days per year. Annual precipitation totals 89.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 745 feet.
Temperature
54°F Jan (12°C)
71°F Jul (22°C)
| Annual Average | 63.8°F |
| 18% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 186 days/yr |
Geography
| Elevation | 745 ft (227 m) |
| Area | 37.4 sq mi (96.8 km²) |
| Population Density | 218/sq mi |
| Coordinates | 23.0478°N, 121.1628°W |
| Timezone | Asia/Taipei |
Precipitation & Snow
Air Quality
Earthquake History
2,427 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.7.
| Sep 20, 1999 | 21 km S of Puli, Taiwan | M7.7 | 83 km | 33 km |
| Apr 2, 2024 | 15 km S of Hualien City, Taiwan | M7.4 | 98 km | 40 km |
| Sep 18, 2022 | 90 km E of Yujing, Taiwan | M6.9 | 21 km | 10 km |
| Sep 5, 1996 | 78 km E of Hengchun, Taiwan | M6.8 | 132 km | 20 km |
| Mar 22, 2022 | 65 km S of Hualien City, Taiwan | M6.7 | 59 km | 24 km |
| Dec 13, 1990 | 28 km S of Hualien City, Taiwan | M6.7 | 89 km | 10 km |
| Sep 17, 2022 | 96 km SE of Lugu, Taiwan | M6.5 | 27 km | 10 km |
| Sep 25, 1999 | 31 km SE of Puli, Taiwan | M6.5 | 77 km | 17 km |
| Sep 22, 1999 | 33 km SE of Puli, Taiwan | M6.4 | 76 km | 26 km |
| Sep 20, 1999 | 44 km SSE of Lugu, Taiwan | M6.4 | 43 km | 33 km |
| Jun 10, 2000 | 29 km ESE of Puli, Taiwan | M6.4 | 89 km | 33 km |
| Dec 19, 2009 | 20 km S of Hualien City, Taiwan | M6.4 | 95 km | 43 km |
| Apr 3, 2024 | 15 km NNE of Hualien City, Taiwan | M6.4 | 129 km | 14 km |
| Feb 5, 2016 | 25 km SE of Yujing, Taiwan | M6.4 | 59 km | 23 km |
| Feb 6, 2018 | 18 km NNE of Hualien City, Taiwan | M6.4 | 131 km | 17 km |
| Dec 13, 1990 | 7 km SSE of Hualien City, Taiwan | M6.3 | 108 km | 12 km |
| Sep 20, 1999 | 54 km SW of Hualien City, Taiwan | M6.3 | 60 km | 33 km |
| Nov 1, 1999 | 66 km S of Hualien City, Taiwan | M6.3 | 52 km | 33 km |
| Oct 31, 2013 | 46 km SSW of Hualien City, Taiwan | M6.3 | 67 km | 10 km |
| Mar 4, 2010 | 41 km SE of Yujing, Taiwan | M6.3 | 40 km | 21 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
97 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Podul | Category 2 | — | 60 km |
| 2025 | Danas | Category 2 | — | 108 km |
| 2024 | Kong-rey | Category 4 | 104 mph | 15 km |
| 2024 | Krathon | Category 4 | 121 mph | 93 km |
| 2024 | Gaemi | Category 4 | 104 mph | 82 km |
| 2023 | Koinu | Category 4 | 104 mph | 122 km |
| 2023 | Saola | Category 4 | 121 mph | 298 km |
| 2023 | Haikui | Category 3 | 98 mph | 38 km |
| 2023 | Doksuri | Category 3 | 92 mph | 223 km |
| 2021 | Chanthu | Category 5 | 127 mph | 90 km |
| 2019 | Mitag | Category 2 | 86 mph | 180 km |
| 2017 | Nesat | Category 2 | 92 mph | 162 km |
| 2016 | Meranti | Category 5 | 138 mph | 146 km |
| 2016 | Nepartak | Category 5 | 127 mph | 61 km |
| 2016 | Megi | Category 4 | 98 mph | 107 km |
| 2016 | Malakas | Category 4 | 109 mph | 194 km |
| 2015 | Dujuan | Category 4 | 127 mph | 128 km |
| 2015 | Goni | Category 3 | 109 mph | 219 km |
| 2015 | Soudelor | Category 3 | 104 mph | 107 km |
| 2015 | Noul | Category 3 | 104 mph | 190 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
9 tsunamis recorded within 500 km. Highest wave on record: 30.0 m (98 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1781 | KAOHSIUNG | Unknown | 30.0 m | 1 | 107 km |
| 2024 | E. TAIWAN-RYUKYU ISLANDS | Earthquake | 1.0 m | 20 | 95 km |
| 1917 | TAIWAN | Earthquake | 0.5 m | — | 48 km |
| 1986 | TAIWAN | Earthquake | 0.3 m | 15 | 104 km |
| 1951 | TAIWAN | Earthquake | 0.3 m | 68 | 100 km |
| 1996 | TAIWAN REGION | Earthquake | 0.1 m | — | 132 km |
| 1978 | TAIWAN | Earthquake | 0.1 m | — | 92 km |
| 1972 | E. TAIWAN | Earthquake | 0.1 m | 1 | 132 km |
| 1990 | TAIWAN | Earthquake | 0.0 m | — | 89 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 1.9 in | Coldest, Driest |
| February | 56°F (13°C) | 2.6 in | |
| March | 60°F (16°C) | 3.2 in | |
| April | 64°F (18°C) | 4.2 in | |
| May | 68°F (20°C) | 10.2 in | |
| June | 70°F (21°C) | 10.0 in | |
| July | 71°F (22°C) | 17.7 in | Warmest, Wettest |
| August | 70°F (21°C) | 14.3 in | |
| September | 69°F (20°C) | 12.8 in | |
| October | 66°F (19°C) | 7.4 in | |
| November | 61°F (16°C) | 2.6 in | |
| December | 56°F (14°C) | 2.3 in |
Guanshan has a seasonal temperature swing of 17°F / from 54°F in January to 71°F in July. Total annual precipitation is 89.2 inches, with July being the wettest month (17.7") and January the driest (1.9").