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Weather & Climate in Santo Rosario, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Santo Rosario has a warm climate with an average annual temperature of 81°F (27°C). Winters average 78°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 328 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 92.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 161 feet.
Temperature
78°F Jan (26°C)
81°F Jul (27°C)
| Annual Average | 80.7°F |
| 49% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 328 days/yr |
Geography
| Elevation | 161 ft (49 m) |
| Area | 47.1 sq mi (122.0 km²) |
| Population Density | 132/sq mi |
| Coordinates | 15.6447°N, 120.8612°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
666 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.7.
| Jul 16, 1990 | 4 km E of Macapsing, Philippines | M7.7 | 34 km | 25 km |
| Dec 11, 1999 | 14 km WNW of Bolitoc, Philippines | M7.3 | 121 km | 33 km |
| Jul 17, 1990 | 14 km NNW of Salinas, Philippines | M6.5 | 95 km | 23 km |
| Jul 17, 1990 | 10 km ESE of Ambuclao, Philippines | M6.1 | 88 km | 18 km |
| Apr 22, 2019 | 3 km WSW of San Francisco, Philippines | M6.1 | 85 km | 22 km |
| Aug 23, 1998 | 22 km W of Sabang, Philippines | M6.1 | 137 km | 70 km |
| Jan 6, 2003 | 25 km WSW of Bolitoc, Philippines | M6.0 | 129 km | 10 km |
| Jul 25, 2011 | Luzon, Philippines | M5.9 | 117 km | 35 km |
| Jun 16, 2012 | 37 km WSW of Bolitoc, Philippines | M5.9 | 139 km | 28 km |
| Jan 10, 2015 | 5 km NW of Mabayo, Philippines | M5.9 | 118 km | 59 km |
| Nov 20, 1996 | 3 km ENE of Taloy, Philippines | M5.9 | 86 km | 33 km |
| Jul 20, 1990 | 8 km WNW of Salinas, Philippines | M5.8 | 83 km | 17 km |
| Jul 21, 1990 | 11 km WNW of Salinas, Philippines | M5.7 | 84 km | 26 km |
| Jul 16, 1990 | 2 km NNE of Caronoan West, Philippines | M5.7 | 83 km | 13 km |
| Jun 15, 1991 | 6 km WSW of Calingcuan, Philippines | M5.7 | 52 km | 10 km |
| Jun 15, 1991 | 17 km WNW of Babo-Pangulo, Philippines | M5.6 | 80 km | 10 km |
| Jul 16, 1990 | 2 km N of Halog West, Philippines | M5.6 | 95 km | 18 km |
| Dec 22, 1997 | Luzon, Philippines | M5.6 | 130 km | 33 km |
| Jul 23, 1990 | 6 km S of Loacan, Philippines | M5.6 | 96 km | 20 km |
| Jul 16, 1990 | 19 km NNW of Salinas, Philippines | M5.6 | 98 km | 16 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
90 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Fung-wong | Category 4 | — | 74 km |
| 2025 | Matmo | Category 1 | — | 151 km |
| 2025 | Co-may | Category 1 | — | 154 km |
| 2024 | Usagi | Category 4 | 109 mph | 277 km |
| 2024 | Man-yi | Category 4 | 115 mph | 69 km |
| 2024 | Ewiniar | Category 2 | 86 mph | 161 km |
| 2024 | Toraji | Category 1 | 81 mph | 139 km |
| 2023 | Saola | Category 4 | 109 mph | 242 km |
| 2022 | Noru | Category 4 | 109 mph | 42 km |
| 2022 | Ma-on | Category 1 | — | 251 km |
| 2021 | Conson | Category 1 | — | 255 km |
| 2020 | Goni | Category 4 | 115 mph | 210 km |
| 2020 | Vamco | Category 3 | 86 mph | 57 km |
| 2020 | Molave | Category 2 | 81 mph | 285 km |
| 2019 | Kammuri | Category 4 | 104 mph | 270 km |
| 2018 | Mangkhut | Category 5 | 127 mph | 268 km |
| 2018 | Yutu | Category 4 | 92 mph | 117 km |
| 2016 | Haima | Category 4 | 115 mph | 252 km |
| 2016 | Sarika | Category 4 | 109 mph | 40 km |
| 2016 | Nock-ten | Category 3 | 98 mph | 210 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
5 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 | 92 km |
| 1990 | W. LUZON ISLAND | Earthquake | 2.0 m | 2,412 | 34 km |
| 1999 | LUZON ISLAND | Earthquake | 1.5 m | 5 | 121 km |
| 1937 | W. LUZON ISLAND | Earthquake | — | 1 | 145 km |
| 1880 | E. LUZON ISLAND | Eruption + Earthquake | — | 20 | 113 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
9 volcanoes within 200 km. Closest: Arayat (51 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Arayat | Stratovolcano | 1,026 m (3,366 ft) | Unknown | 51 km |
| Pinatubo | Stratovolcano | 1,486 m (4,875 ft) | 1993 | 79 km |
| Natib | Stratovolcano | 1,253 m (4,111 ft) | Unknown | 114 km |
| Mariveles | Stratovolcano | 1,388 m (4,554 ft) | -2050 | 131 km |
| Laguna Caldera | Caldera | 743 m (2,438 ft) | Unknown | 143 km |
| San Pablo Volcanic Field | Stratovolcano | 1,090 m (3,576 ft) | 1350 | 176 km |
| Taal | Caldera | 311 m (1,020 ft) | 2020 | 183 km |
| Banahaw | Complex | 2,158 m (7,080 ft) | Unknown | 187 km |
| Ambalatungan Group | Compound | 2,329 m (7,641 ft) | Unknown | 188 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 0.3 in | Coldest |
| February | 79°F (26°C) | 0.2 in | Driest |
| March | 81°F (27°C) | 0.8 in | |
| April | 84°F (29°C) | 1.6 in | |
| May | 85°F (29°C) | 7.2 in | Warmest |
| June | 84°F (29°C) | 9.1 in | |
| July | 81°F (27°C) | 14.2 in | |
| August | 81°F (27°C) | 15.1 in | Wettest |
| September | 82°F (28°C) | 11.1 in | |
| October | 82°F (28°C) | 8.3 in | |
| November | 81°F (27°C) | 4.2 in | |
| December | 79°F (26°C) | 1.5 in |
Santo Rosario has a seasonal temperature swing of 7°F / from 78°F in January to 85°F in May. Total annual precipitation is 73.6 inches, with August being the wettest month (15.1") and February the driest (0.2").