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Weather & Climate in San Antonio, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Antonio has a warm climate with an average annual temperature of 77°F (25°C). Winters average 73°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 311 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 128.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 138 feet.
Temperature
73°F Jan (23°C)
78°F Jul (26°C)
| Annual Average | 77.2°F |
| 43% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 138 ft (42 m) |
| Area | 309.8 sq mi (802.3 km²) |
| Population Density | 14/sq mi |
| Coordinates | 13.3710°N, 123.4202°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
317 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.4.
| Oct 12, 1994 | 15 km E of Gigmoto, Philippines | M6.4 | 128 km | 16 km |
| Jun 9, 1994 | 18 km ENE of Rapu-Rapu, Philippines | M6.2 | 94 km | 76 km |
| Feb 15, 2023 | 9 km NNE of Miaga, Philippines | M6.1 | 127 km | 8 km |
| May 5, 2018 | 64 km NNW of Pandan, Philippines | M6.1 | 144 km | 18 km |
| Jun 26, 2003 | 4 km ENE of Miaga, Philippines | M6.0 | 133 km | 10 km |
| Oct 12, 1994 | 16 km E of Gigmoto, Philippines | M5.9 | 129 km | 27 km |
| Feb 15, 2003 | 2 km N of Palanas, Philippines | M5.8 | 144 km | 10 km |
| Feb 22, 2005 | 17 km W of Tigbao, Philippines | M5.8 | 92 km | 18 km |
| Jul 7, 1993 | 2 km SSE of Maagnas, Philippines | M5.7 | 45 km | 40 km |
| Mar 5, 2012 | 5 km ENE of Mobo, Philippines | M5.6 | 117 km | 37 km |
| Feb 3, 1993 | 3 km NNW of Pamplona, Philippines | M5.6 | 47 km | 18 km |
| Dec 12, 1993 | 3 km SSW of Mambulo, Philippines | M5.6 | 55 km | 22 km |
| Aug 19, 2004 | 15 km NW of Manamrag, Philippines | M5.5 | 80 km | 44 km |
| Jul 30, 2001 | 6 km NE of Tigbao, Philippines | M5.4 | 86 km | 33 km |
| Jan 13, 2004 | 52 km ESE of Bato, Philippines | M5.4 | 146 km | 32 km |
| Oct 12, 1994 | 19 km ESE of Gigmoto, Philippines | M5.4 | 127 km | 21 km |
| Feb 2, 2015 | 29 km NE of Gigmoto, Philippines | M5.4 | 142 km | 17 km |
| Jun 28, 2004 | 26 km WSW of Osmeña, Philippines | M5.4 | 88 km | 17 km |
| Jun 3, 2007 | 2 km E of Catabangan, Philippines | M5.3 | 97 km | 30 km |
| Aug 19, 1993 | 15 km NNE of Rapu-Rapu, Philippines | M5.3 | 80 km | 71 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
83 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 | — | 130 km |
| 2025 | Kalmaegi | Category 2 | — | 274 km |
| 2024 | Man-yi | Category 5 | 121 mph | 111 km |
| 2024 | Ewiniar | Category 2 | 86 mph | 214 km |
| 2024 | Toraji | Category 1 | 81 mph | 259 km |
| 2023 | Saola | Category 3 | 98 mph | 292 km |
| 2022 | Noru | Category 5 | 109 mph | 182 km |
| 2021 | Conson | Category 1 | — | 187 km |
| 2020 | Goni | Category 5 | 138 mph | 24 km |
| 2020 | Vamco | Category 3 | 86 mph | 126 km |
| 2020 | Vongfong | Category 3 | 98 mph | 63 km |
| 2020 | Molave | Category 1 | 81 mph | 25 km |
| 2019 | Kammuri | Category 4 | 104 mph | 31 km |
| 2019 | Phanfone | Category 3 | 92 mph | 184 km |
| 2016 | Nock-ten | Category 5 | 121 mph | 15 km |
| 2016 | Sarika | Category 4 | 109 mph | 151 km |
| 2015 | Melor | Category 4 | 109 mph | 64 km |
| 2015 | Koppu | Category 4 | 115 mph | 273 km |
| 2015 | Noul | Category 4 | 104 mph | 256 km |
| 2014 | Rammasun | Category 4 | 98 mph | 4 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.3 m (4 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1973 | QUEZON | Earthquake | 1.3 m | 15 | 67 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Isarog (32 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Isarog | Stratovolcano | 1,966 m (6,450 ft) | -3500 | 32 km |
| Pocdol Mountains | Compound | 1,102 m (3,615 ft) | Unknown | 68 km |
| Bulusan | Stratovolcano(es) | 1,535 m (5,036 ft) | 2017 | 96 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 7.1 in | Coldest |
| February | 78°F (25°C) | 4.1 in | |
| March | 79°F (26°C) | 3.9 in | |
| April | 81°F (27°C) | 3.8 in | Driest |
| May | 82°F (28°C) | 6.3 in | Warmest |
| June | 82°F (28°C) | 8.9 in | |
| July | 78°F (26°C) | 10.5 in | |
| August | 82°F (28°C) | 10.2 in | |
| September | 81°F (27°C) | 10.7 in | |
| October | 81°F (27°C) | 12.9 in | |
| November | 80°F (27°C) | 15.2 in | Wettest |
| December | 78°F (26°C) | 14.1 in |
San Antonio has a seasonal temperature swing of 9°F / from 73°F in January to 82°F in May. Total annual precipitation is 107.6 inches, with November being the wettest month (15.2") and April the driest (3.8").