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Weather & Climate in San Mariano, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Mariano has a warm climate with an average annual temperature of 80°F (27°C). Winters average 78°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 164 sunny days per year, below the national average of 205. Annual precipitation totals 110.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 184 feet.
Temperature
78°F Jan (26°C)
80°F Jul (27°C)
| Annual Average | 79.9°F |
| 48% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 164 days/yr |
Geography
| Elevation | 184 ft (56 m) |
| Area | 4,000.1 sq mi (10,360.3 km²) |
| Population Density | 1/sq mi |
| Coordinates | 12.6414°N, 121.4379°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
589 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 | 110 km | 18 km |
| Nov 14, 1994 | 10 km E of Sabang, Philippines | M7.1 | 106 km | 32 km |
| Jul 23, 2021 | 15 km S of Hukay, Philippines | M6.7 | 141 km | 110 km |
| Jun 15, 2023 | Mindoro, Philippines | M6.2 | 147 km | 112 km |
| Aug 13, 2021 | 10 km WNW of Tingloy, Philippines | M5.9 | 138 km | 121 km |
| Mar 29, 1993 | Mindoro, Philippines | M5.9 | 133 km | 58 km |
| Oct 21, 2000 | 15 km W of Tingloy, Philippines | M5.9 | 139 km | 152 km |
| Apr 8, 2017 | 1 km NNW of Mabini, Philippines | M5.9 | 137 km | 14 km |
| Feb 20, 1994 | 9 km WNW of Tingloy, Philippines | M5.9 | 136 km | 207 km |
| Sep 18, 2009 | 41 km WSW of Batasan, Philippines | M5.9 | 110 km | 12 km |
| Sep 1, 2003 | 30 km SE of Tugdan, Philippines | M5.8 | 110 km | 21 km |
| Jul 23, 2021 | 6 km SE of Hukay, Philippines | M5.8 | 149 km | 121 km |
| May 12, 2021 | 10 km SSW of Tingloy, Philippines | M5.8 | 122 km | 113 km |
| Sep 3, 2002 | 8 km N of Wawa, Philippines | M5.8 | 124 km | 10 km |
| Mar 1, 2006 | 7 km NE of Paluan, Philippines | M5.8 | 135 km | 22 km |
| Oct 18, 2009 | 14 km S of Calatagan, Philippines | M5.7 | 145 km | 156 km |
| May 4, 2019 | 8 km SW of San Agustin, Philippines | M5.7 | 63 km | 10 km |
| May 22, 2011 | 14 km WSW of Tingloy, Philippines | M5.7 | 129 km | 149 km |
| May 10, 1994 | 12 km NNW of Cabacao, Philippines | M5.7 | 126 km | 70 km |
| Jul 7, 1990 | 41 km SW of Adela, Philippines | M5.7 | 97 km | 27 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
58 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kalmaegi | Category 1 | — | 237 km |
| 2024 | Ewiniar | Category 1 | 75 mph | 223 km |
| 2022 | Noru | Category 5 | 109 mph | 280 km |
| 2021 | Rai | Category 4 | 109 mph | 284 km |
| 2021 | Conson | Category 1 | — | 100 km |
| 2020 | Goni | Category 4 | 115 mph | 141 km |
| 2020 | Vamco | Category 3 | 86 mph | 261 km |
| 2020 | Molave | Category 2 | 81 mph | 57 km |
| 2020 | Vongfong | Category 1 | 75 mph | 155 km |
| 2019 | Kammuri | Category 4 | 104 mph | 65 km |
| 2019 | Phanfone | Category 3 | 92 mph | 51 km |
| 2016 | Nock-ten | Category 4 | 115 mph | 96 km |
| 2016 | Tokage | Category 1 | 58 mph | 234 km |
| 2015 | Melor | Category 4 | 98 mph | 51 km |
| 2014 | Rammasun | Category 4 | 98 mph | 163 km |
| 2014 | Hagupit | Category 2 | 98 mph | 183 km |
| 2013 | Haiyan | Category 5 | 104 mph | 116 km |
| 2010 | Conson | Category 1 | 75 mph | 289 km |
| 2009 | Mirinae | Category 2 | 69 mph | 236 km |
| 2008 | Fengshen | Category 3 | 104 mph | 58 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 7.3 m (24 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1994 | PHILIPPINE ISLANDS | Earthquake | 7.3 m | 81 | 106 km |
| 1889 | MINDORO ISLAND | Earthquake | 0.1 m | — | 107 km |
| 1928 | SULU SEA | Earthquake | — | — | 64 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Taal (159 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Taal | Caldera | 311 m (1,020 ft) | 2020 | 159 km |
| Banahaw | Complex | 2,158 m (7,080 ft) | Unknown | 159 km |
| San Pablo Volcanic Field | Stratovolcano | 1,090 m (3,576 ft) | 1350 | 165 km |
| Laguna Caldera | Caldera | 743 m (2,438 ft) | Unknown | 199 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 2.2 in | Coldest |
| February | 78°F (26°C) | 1.8 in | |
| March | 80°F (27°C) | 1.0 in | Driest |
| April | 82°F (28°C) | 2.2 in | |
| May | 82°F (28°C) | 7.8 in | Warmest |
| June | 81°F (27°C) | 13.6 in | |
| July | 80°F (27°C) | 20.8 in | Wettest |
| August | 80°F (27°C) | 16.5 in | |
| September | 80°F (26°C) | 14.5 in | |
| October | 80°F (27°C) | 13.2 in | |
| November | 79°F (26°C) | 10.0 in | |
| December | 78°F (26°C) | 6.4 in |
San Mariano has a seasonal temperature swing of 4°F / from 78°F in January to 82°F in May. Total annual precipitation is 110.1 inches, with July being the wettest month (20.8") and March the driest (1.0").