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Weather & Climate in Santo Tomas, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Santo Tomas has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 172 sunny days per year. Annual precipitation totals 90.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 138 feet.
Temperature
79°F Jan (26°C)
81°F Jul (27°C)
| Annual Average | 80.6°F |
| 49% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 172 days/yr |
Geography
| Elevation | 138 ft (42 m) |
| Area | 80.5 sq mi (208.5 km²) |
| Population Density | 0/sq mi |
| Coordinates | 7.5336°N, 125.6233°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
1,172 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.5.
| Jan 1, 2001 | 21 km SE of Lukatan, Philippines | M7.5 | 127 km | 33 km |
| May 17, 1992 | 23 km ESE of Santiago, Philippines | M7.3 | 131 km | 33 km |
| May 17, 1992 | 9 km SE of Santiago, Philippines | M7.1 | 117 km | 33 km |
| May 11, 1993 | 3 km E of Manay, Philippines | M7.0 | 110 km | 59 km |
| Nov 13, 1991 | 4 km ESE of Hinatuan, Philippines | M6.8 | 124 km | 36 km |
| Aug 2, 2024 | 20 km E of Barcelona, Philippines | M6.8 | 131 km | 32 km |
| Oct 25, 1990 | 13 km E of Tidman, Philippines | M6.5 | 126 km | 44 km |
| Jan 1, 2002 | 3 km S of Lais, Philippines | M6.3 | 137 km | 138 km |
| Sep 23, 2016 | 36 km SE of Tamisan, Philippines | M6.3 | 144 km | 65 km |
| Sep 15, 1997 | 23 km ESE of Barcelona, Philippines | M6.2 | 129 km | 51 km |
| Apr 19, 2022 | 41 km E of Santiago, Philippines | M6.1 | 149 km | 19 km |
| Feb 7, 2021 | 9 km W of Magsaysay, Philippines | M6.0 | 103 km | 16 km |
| Apr 5, 2018 | 43 km ESE of Tarragona, Philippines | M6.0 | 149 km | 34 km |
| Feb 1, 2023 | 1 km NW of Babag, Philippines | M6.0 | 53 km | 19 km |
| Aug 19, 1993 | 27 km ESE of Santiago, Philippines | M5.9 | 136 km | 31 km |
| Mar 7, 2023 | 6 km SE of Manat, Philippines | M5.9 | 48 km | 16 km |
| Nov 21, 1996 | 27 km SE of Tamisan, Philippines | M5.9 | 134 km | 53 km |
| May 15, 1993 | 9 km SE of Santiago, Philippines | M5.8 | 117 km | 31 km |
| Apr 11, 2017 | 8 km N of Osias, Philippines | M5.8 | 91 km | 8 km |
| Sep 20, 1994 | 18 km E of Baculin, Philippines | M5.8 | 125 km | 51 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
6 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2021 | Rai | Category 5 | 121 mph | 277 km |
| 2012 | Bopha | Category 5 | 115 mph | 43 km |
| 1994 | Owen | Category 1 | 69 mph | 297 km |
| 1993 | Nell | Category 1 | 69 mph | 217 km |
| 1986 | Marge | Category 2 | 98 mph | 228 km |
| 1984 | Ike | Category 4 | 104 mph | 228 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1992 | PHILIPPINES | Earthquake | 6.0 m | — | 131 km |
| 2023 | E. MINDANAO ISLAND | Earthquake | 0.3 m | 3 | 143 km |
| 2025 | MINDANAO ISLAND, PHILIPPINES | Earthquake | 0.3 m | 10 | 121 km |
| 1970 | PHILIPPINE TRENCH | Earthquake | 0.1 m | — | 144 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Leonard Range (50 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Leonard Range | Stratovolcano | 1,080 m (3,543 ft) | 120 | 50 km |
| Apo | Stratovolcano | 2,938 m (9,639 ft) | Unknown | 72 km |
| Matutum | Stratovolcano | 2,286 m (7,500 ft) | 1290 | 143 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 8.9 in | Coldest, Wettest |
| February | 79°F (26°C) | 7.4 in | |
| March | 80°F (27°C) | 5.8 in | Driest |
| April | 82°F (28°C) | 7.0 in | |
| May | 82°F (28°C) | 8.9 in | Warmest |
| June | 81°F (27°C) | 8.2 in | |
| July | 81°F (27°C) | 6.6 in | |
| August | 81°F (27°C) | 7.1 in | |
| September | 81°F (27°C) | 7.5 in | |
| October | 81°F (27°C) | 8.2 in | |
| November | 81°F (27°C) | 7.6 in | |
| December | 80°F (27°C) | 7.5 in |
Santo Tomas has a seasonal temperature swing of 3°F / from 79°F in January to 82°F in May. Total annual precipitation is 90.7 inches, with January being the wettest month (8.9") and March the driest (5.8").