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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 79°F (26°C). Winters average 73°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 179 sunny days per year. Annual precipitation totals 93.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 243 feet.
Temperature
73°F Jan (23°C)
82°F Jul (28°C)
| Annual Average | 78.9°F |
| 46% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 179 days/yr |
Geography
| Elevation | 243 ft (74 m) |
| Area | 567.4 sq mi (1,469.5 km²) |
| Population Density | 22/sq mi |
| Coordinates | 16.9827°N, 122.0140°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
381 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.0.
| Jul 27, 2022 | 11 km NE of Bantay, Philippines | M7.0 | 140 km | 34 km |
| Jul 17, 1990 | 14 km NNW of Salinas, Philippines | M6.5 | 123 km | 23 km |
| Mar 19, 1992 | 7 km NNW of Besao, Philippines | M6.3 | 128 km | 15 km |
| Jul 17, 1990 | 10 km ESE of Ambuclao, Philippines | M6.1 | 139 km | 18 km |
| Jul 20, 1990 | 8 km WNW of Salinas, Philippines | M5.8 | 132 km | 17 km |
| Mar 2, 2010 | Luzon, Philippines | M5.8 | 140 km | 17 km |
| Jul 21, 1990 | 11 km WNW of Salinas, Philippines | M5.7 | 133 km | 26 km |
| Jan 13, 2008 | 4 km SSE of Bontoc, Philippines | M5.7 | 109 km | 10 km |
| Jul 18, 1990 | 13 km WNW of Busilak, Philippines | M5.6 | 119 km | 14 km |
| Jul 16, 1990 | 19 km NNW of Salinas, Philippines | M5.6 | 126 km | 16 km |
| Jan 12, 2001 | 19 km SE of Bantay, Philippines | M5.5 | 124 km | 33 km |
| May 4, 2023 | Luzon, Philippines | M5.4 | 65 km | 19 km |
| Jun 21, 1990 | 52 km E of Awallan, Philippines | M5.4 | 108 km | 33 km |
| Jun 9, 2016 | 5 km WNW of Uddiawan, Philippines | M5.4 | 108 km | 8 km |
| Jul 22, 1990 | 7 km WSW of Busilak, Philippines | M5.4 | 118 km | 13 km |
| Jul 17, 1990 | 1 km WNW of Bone South, Philippines | M5.4 | 137 km | 13 km |
| Dec 21, 2009 | 2 km NE of Paracelis, Philippines | M5.3 | 65 km | 10 km |
| Jul 16, 1990 | 14 km WSW of Salinas, Philippines | M5.3 | 140 km | 23 km |
| Jul 22, 1990 | 10 km NW of Busilak, Philippines | M5.3 | 115 km | 33 km |
| May 13, 2008 | 39 km SE of Dicamay, Philippines | M5.3 | 61 km | 54 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
113 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Ragasa | Category 5 | — | 259 km |
| 2025 | Fung-wong | Category 4 | — | 101 km |
| 2025 | Co-may | Category 1 | — | 285 km |
| 2025 | Matmo | Category 1 | — | 39 km |
| 2024 | Yinxing | Category 4 | 115 mph | 174 km |
| 2024 | Man-yi | Category 4 | 115 mph | 124 km |
| 2024 | Usagi | Category 4 | 109 mph | 85 km |
| 2024 | Ewiniar | Category 2 | 86 mph | 156 km |
| 2024 | Toraji | Category 1 | 81 mph | 54 km |
| 2023 | Saola | Category 5 | 109 mph | 94 km |
| 2023 | Doksuri | Category 4 | 115 mph | 223 km |
| 2022 | Noru | Category 5 | 109 mph | 209 km |
| 2022 | Ma-on | Category 1 | — | 61 km |
| 2021 | Chanthu | Category 5 | 132 mph | 182 km |
| 2020 | Vamco | Category 3 | 86 mph | 223 km |
| 2019 | Kalmaegi | Category 2 | 81 mph | 169 km |
| 2018 | Mangkhut | Category 5 | 127 mph | 117 km |
| 2018 | Yutu | Category 4 | 92 mph | 37 km |
| 2016 | Sarika | Category 4 | 109 mph | 144 km |
| 2016 | Haima | Category 4 | 132 mph | 71 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 4.3 m (14 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1970 | PHILIPPINE SEA | Earthquake | 4.3 m | 15 | 138 km |
| 1968 | E. LUZON ISLAND | Earthquake | 0.2 m | 270 | 57 km |
| 2022 | N. LUZON ISLAND | Earthquake | 0.1 m | 11 | 140 km |
| 1880 | E. LUZON ISLAND | Eruption + Earthquake | — | 20 | 111 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Ambalatungan Group (104 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ambalatungan Group | Compound | 2,329 m (7,641 ft) | Unknown | 104 km |
| Cagua | Stratovolcano | 1,133 m (3,717 ft) | 1860 | 138 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 4.5 in | Coldest |
| February | 75°F (24°C) | 3.0 in | Driest |
| March | 78°F (26°C) | 3.2 in | |
| April | 81°F (27°C) | 3.4 in | |
| May | 83°F (28°C) | 5.9 in | |
| June | 83°F (28°C) | 6.9 in | Warmest |
| July | 82°F (28°C) | 7.2 in | |
| August | 82°F (28°C) | 7.5 in | |
| September | 81°F (27°C) | 8.5 in | |
| October | 79°F (26°C) | 15.8 in | |
| November | 77°F (25°C) | 16.8 in | Wettest |
| December | 74°F (23°C) | 11.4 in |
San Mariano has a seasonal temperature swing of 10°F / from 73°F in January to 83°F in June. Total annual precipitation is 93.9 inches, with November being the wettest month (16.8") and February the driest (3.0").