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Weather & Climate in Sison, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sison has a warm climate with an average annual temperature of 80°F (27°C). Winters average 78°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 126 sunny days per year, below the national average of 205. Annual precipitation totals 150.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 121 feet.
Temperature
78°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 80.3°F |
| 49% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 126 days/yr |
Geography
| Elevation | 121 ft (37 m) |
| Area | 21.1 sq mi (54.7 km²) |
| Population Density | 150/sq mi |
| Coordinates | 9.6603°N, 125.5286°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
2,400 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.0.
| Feb 18, 1991 | 18 km E of Aras-asan, Philippines | M7.0 | 137 km | 24 km |
| Feb 8, 1990 | 13 km E of Bacong, Philippines | M6.8 | 92 km | 26 km |
| Sep 20, 1996 | 22 km NNE of Cortes, Philippines | M6.6 | 86 km | 33 km |
| Feb 8, 1990 | 6 km ESE of Bacong, Philippines | M6.6 | 99 km | 30 km |
| Sep 20, 1996 | 24 km NE of Cortes, Philippines | M6.6 | 91 km | 33 km |
| Oct 6, 1997 | 18 km E of Talisay, Philippines | M6.5 | 31 km | 106 km |
| Feb 10, 2017 | 11 km N of Mabua, Philippines | M6.5 | 29 km | 15 km |
| Sep 20, 1996 | 26 km SE of Union, Philippines | M6.4 | 84 km | 33 km |
| Apr 24, 1991 | 50 km ENE of Aras-asan, Philippines | M6.3 | 150 km | 14 km |
| Sep 28, 1996 | 22 km E of San Francisco, Philippines | M6.3 | 46 km | 235 km |
| Jun 15, 1991 | 21 km WNW of Santa Monica, Philippines | M6.1 | 60 km | 71 km |
| Sep 20, 1996 | 42 km ENE of Cortes, Philippines | M6.1 | 114 km | 33 km |
| Nov 7, 1996 | 25 km E of Union, Philippines | M6.1 | 90 km | 33 km |
| Nov 2, 2012 | 2 km NW of Tigao, Philippines | M6.1 | 85 km | 37 km |
| Jul 3, 2015 | 23 km NW of Santa Monica, Philippines | M6.1 | 69 km | 32 km |
| Nov 5, 1996 | 27 km E of Union, Philippines | M6.0 | 92 km | 33 km |
| Mar 8, 2019 | 40 km N of Santa Monica, Philippines | M6.0 | 96 km | 30 km |
| Jan 27, 1996 | 26 km E of Tigao, Philippines | M6.0 | 111 km | 33 km |
| Nov 4, 1996 | 16 km ENE of Union, Philippines | M5.9 | 81 km | 33 km |
| Mar 26, 1990 | 5 km ENE of Jagupit, Philippines | M5.9 | 46 km | 39 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
29 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kalmaegi | Category 2 | — | 134 km |
| 2021 | Rai | Category 5 | 121 mph | 60 km |
| 2020 | Vongfong | Category 3 | 98 mph | 273 km |
| 2019 | Phanfone | Category 3 | 92 mph | 172 km |
| 2015 | Mekkhala | Category 1 | 69 mph | 232 km |
| 2014 | Hagupit | Category 4 | 115 mph | 249 km |
| 2013 | Haiyan | Category 5 | 144 mph | 133 km |
| 2012 | Bopha | Category 5 | 115 mph | 172 km |
| 2008 | Fengshen | Category 3 | 92 mph | 190 km |
| 2006 | Utor | Category 1 | 75 mph | 182 km |
| 2006 | Chanchu | Category 1 | 63 mph | 252 km |
| 2005 | Roke | Category 1 | 63 mph | 169 km |
| 2004 | Nida | Category 4 | 104 mph | 247 km |
| 1998 | Faith | Category 1 | 75 mph | 239 km |
| 1995 | Zack | Category 2 | 63 mph | 95 km |
| 1995 | Sibyl | Category 1 | 46 mph | 253 km |
| 1994 | Axel | Category 4 | 98 mph | 127 km |
| 1994 | Owen | Category 1 | 69 mph | 67 km |
| 1993 | Nell | Category 1 | 69 mph | 9 km |
| 1990 | Mike | Category 4 | 109 mph | 74 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 12.0 m (39 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2022 | ABUYOG, LEYTE | Meteorological | 12.0 m | 170 | 129 km |
| 1990 | PHILIPPINES | Earthquake | 2.1 m | 6 | 92 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Cabalían (77 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Cabalían | Stratovolcano | 912 m (2,992 ft) | 1820 | 77 km |
| Camiguin | Stratovolcano(es) | 1,552 m (5,092 ft) | 1953 | 107 km |
| Mahagnao | Stratovolcano | 860 m (2,822 ft) | Unknown | 153 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 25.6 in | Coldest, Wettest |
| February | 78°F (26°C) | 18.9 in | |
| March | 79°F (26°C) | 15.1 in | |
| April | 81°F (27°C) | 10.0 in | |
| May | 82°F (28°C) | 7.2 in | Warmest |
| June | 82°F (28°C) | 6.9 in | |
| July | 82°F (28°C) | 7.0 in | |
| August | 82°F (28°C) | 5.9 in | Driest |
| September | 81°F (27°C) | 5.9 in | |
| October | 81°F (27°C) | 9.6 in | |
| November | 80°F (27°C) | 16.0 in | |
| December | 79°F (26°C) | 22.0 in |
Sison has a seasonal temperature swing of 4°F / from 78°F in January to 82°F in May. Total annual precipitation is 150.1 inches, with January being the wettest month (25.6") and August the driest (5.9").