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Weather & Climate in San Dionisio, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Dionisio has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 170 sunny days per year. Annual precipitation totals 91.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
79°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 81.0°F |
| 50% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 170 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 49.1 sq mi (127.1 km²) |
| Population Density | 64/sq mi |
| Coordinates | 11.2710°N, 123.0964°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
234 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Jun 14, 1990 | 0 km ESE of Union, Philippines | M7.1 | 141 km | 18 km |
| Feb 6, 2012 | 2 km NNE of Jimalalud, Philippines | M6.7 | 142 km | 11 km |
| Feb 15, 2003 | 11 km SSW of San Vicente, Philippines | M6.3 | 146 km | 10 km |
| Feb 15, 2023 | 9 km NNE of Miaga, Philippines | M6.1 | 142 km | 8 km |
| Jun 26, 2003 | 4 km ENE of Miaga, Philippines | M6.0 | 137 km | 10 km |
| Feb 15, 2003 | 2 km N of Palanas, Philippines | M5.8 | 134 km | 10 km |
| Sep 1, 2003 | 30 km SE of Tugdan, Philippines | M5.8 | 130 km | 21 km |
| Feb 22, 2005 | 17 km W of Tigbao, Philippines | M5.8 | 146 km | 18 km |
| Jun 14, 1990 | 19 km SSW of Union, Philippines | M5.6 | 145 km | 18 km |
| Mar 5, 2012 | 5 km ENE of Mobo, Philippines | M5.6 | 137 km | 37 km |
| Jul 23, 1990 | 7 km W of Da-an Sur, Philippines | M5.6 | 82 km | 16 km |
| May 23, 2003 | 5 km ENE of Limbuhan, Philippines | M5.6 | 130 km | 30 km |
| Sep 29, 2000 | 34 km SW of Taclobo, Philippines | M5.6 | 118 km | 33 km |
| Feb 6, 2012 | 3 km WNW of McKinley, Philippines | M5.6 | 132 km | 10 km |
| Jun 14, 1990 | 8 km SSW of Manika, Philippines | M5.5 | 92 km | 23 km |
| May 23, 2003 | 10 km NNE of Limbuhan, Philippines | M5.4 | 134 km | 25 km |
| Aug 15, 1999 | 23 km ESE of Limbuhan, Philippines | M5.4 | 140 km | 33 km |
| May 2, 2003 | 14 km NE of Limbuhan, Philippines | M5.4 | 138 km | 33 km |
| May 21, 1992 | 2 km NNW of Ponong, Philippines | M5.4 | 55 km | 33 km |
| Aug 15, 2016 | 21 km SE of Bugasong, Philippines | M5.4 | 107 km | 29 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
47 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kalmaegi | Category 2 | — | 76 km |
| 2021 | Rai | Category 4 | 109 mph | 132 km |
| 2021 | Conson | Category 1 | — | 291 km |
| 2020 | Goni | Category 5 | 138 mph | 254 km |
| 2020 | Vongfong | Category 3 | 98 mph | 158 km |
| 2020 | Molave | Category 1 | 81 mph | 224 km |
| 2019 | Kammuri | Category 4 | 104 mph | 206 km |
| 2019 | Phanfone | Category 3 | 92 mph | 58 km |
| 2016 | Nock-ten | Category 5 | 115 mph | 250 km |
| 2015 | Melor | Category 4 | 109 mph | 176 km |
| 2014 | Rammasun | Category 4 | 98 mph | 239 km |
| 2014 | Hagupit | Category 3 | 104 mph | 147 km |
| 2013 | Haiyan | Category 5 | 127 mph | 56 km |
| 2012 | Bopha | Category 3 | 81 mph | 229 km |
| 2008 | Fengshen | Category 3 | 104 mph | 59 km |
| 2006 | Durian | Category 4 | 115 mph | 243 km |
| 2006 | Xangsane | Category 4 | 98 mph | 221 km |
| 2006 | Utor | Category 3 | 86 mph | 63 km |
| 2006 | Chanchu | Category 2 | 63 mph | 168 km |
| 2005 | Roke | Category 1 | 52 mph | 87 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2012 | TANON STRAIT | Earthquake | 5.0 m | 51 | 142 km |
| 2003 | SAMAR SEA | Eruption + Earthquake | 1.0 m | — | 146 km |
| 1948 | SULU SEA | Earthquake | — | 74 | 113 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Silay (58 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Silay | Stratovolcano | 1,510 m (4,954 ft) | Unknown | 58 km |
| Mandalagan | Complex | 1,885 m (6,184 ft) | Unknown | 71 km |
| Kanlaon | Stratovolcano | 2,435 m (7,989 ft) | 2017 | 96 km |
| Biliran | Compound | 1,301 m (4,268 ft) | 1939 | 159 km |
| Bulusan | Stratovolcano(es) | 1,535 m (5,036 ft) | 2017 | 197 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 6.2 in | Coldest |
| February | 79°F (26°C) | 3.6 in | |
| March | 80°F (27°C) | 3.0 in | |
| April | 82°F (28°C) | 2.8 in | Driest |
| May | 84°F (29°C) | 6.9 in | Warmest |
| June | 82°F (28°C) | 9.3 in | |
| July | 82°F (28°C) | 10.3 in | |
| August | 82°F (28°C) | 8.5 in | |
| September | 82°F (28°C) | 9.1 in | |
| October | 81°F (27°C) | 11.8 in | Wettest |
| November | 81°F (27°C) | 10.9 in | |
| December | 80°F (26°C) | 9.2 in |
San Dionisio has a seasonal temperature swing of 5°F / from 79°F in January to 84°F in May. Total annual precipitation is 91.5 inches, with October being the wettest month (11.8") and April the driest (2.8").