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Weather & Climate in San Isidro, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Isidro has a warm climate with an average annual temperature of 81°F (27°C). Winters average 78°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 319 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 132.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 23 feet.
Temperature
78°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 81.1°F |
| 50% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 319 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 16.2 sq mi (42.0 km²) |
| Population Density | 296/sq mi |
| Coordinates | 9.9369°N, 126.0886°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
2,833 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.6.
| Aug 31, 2012 | 89 km E of Sulangan, Philippines | M7.6 | 114 km | 28 km |
| Feb 18, 1991 | 18 km E of Aras-asan, Philippines | M7.0 | 126 km | 24 km |
| Sep 20, 1996 | 24 km NE of Cortes, Philippines | M6.6 | 60 km | 33 km |
| Sep 20, 1996 | 22 km NNE of Cortes, Philippines | M6.6 | 57 km | 33 km |
| Oct 6, 1997 | 18 km E of Talisay, Philippines | M6.5 | 38 km | 106 km |
| Feb 10, 2017 | 11 km N of Mabua, Philippines | M6.5 | 70 km | 15 km |
| Sep 20, 1996 | 26 km SE of Union, Philippines | M6.4 | 44 km | 33 km |
| Apr 24, 1991 | 50 km ENE of Aras-asan, Philippines | M6.3 | 123 km | 14 km |
| Sep 28, 1996 | 22 km E of San Francisco, Philippines | M6.3 | 80 km | 235 km |
| Nov 2, 2012 | 2 km NW of Tigao, Philippines | M6.1 | 80 km | 37 km |
| Jun 15, 1991 | 21 km WNW of Santa Monica, Philippines | M6.1 | 31 km | 71 km |
| Jul 3, 2015 | 23 km NW of Santa Monica, Philippines | M6.1 | 34 km | 32 km |
| Sep 20, 1996 | 42 km ENE of Cortes, Philippines | M6.1 | 74 km | 33 km |
| Nov 7, 1996 | 25 km E of Union, Philippines | M6.1 | 32 km | 33 km |
| Mar 8, 2019 | 40 km N of Santa Monica, Philippines | M6.0 | 51 km | 30 km |
| Nov 5, 1996 | 27 km E of Union, Philippines | M6.0 | 36 km | 33 km |
| Jan 27, 1996 | 26 km E of Tigao, Philippines | M6.0 | 91 km | 33 km |
| Feb 8, 2019 | 52 km E of Union, Philippines | M5.9 | 55 km | 20 km |
| Apr 13, 2000 | 61 km ENE of Santa Monica, Philippines | M5.9 | 62 km | 33 km |
| Mar 26, 1990 | 5 km ENE of Jagupit, Philippines | M5.9 | 93 km | 39 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
37 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kalmaegi | Category 2 | — | 77 km |
| 2024 | Man-yi | Category 5 | 121 mph | 289 km |
| 2021 | Rai | Category 5 | 121 mph | 12 km |
| 2020 | Vongfong | Category 3 | 98 mph | 241 km |
| 2019 | Phanfone | Category 2 | 92 mph | 123 km |
| 2015 | Melor | Category 4 | 109 mph | 287 km |
| 2015 | Mekkhala | Category 1 | 69 mph | 176 km |
| 2014 | Hagupit | Category 4 | 127 mph | 225 km |
| 2013 | Haiyan | Category 5 | 144 mph | 98 km |
| 2012 | Bopha | Category 5 | 115 mph | 227 km |
| 2008 | Fengshen | Category 2 | 92 mph | 141 km |
| 2006 | Xangsane | Category 2 | 86 mph | 263 km |
| 2006 | Utor | Category 1 | 75 mph | 141 km |
| 2006 | Chanchu | Category 1 | 63 mph | 195 km |
| 2005 | Roke | Category 1 | 63 mph | 157 km |
| 2004 | Nida | Category 5 | 109 mph | 186 km |
| 2000 | Xangsane | Category 1 | 63 mph | 275 km |
| 1998 | Babs | Category 4 | 98 mph | 272 km |
| 1998 | Faith | Category 1 | 75 mph | 224 km |
| 1995 | Zack | Category 2 | 63 mph | 56 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 12.0 m (39 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2022 | ABUYOG, LEYTE | Meteorological | 12.0 m | 170 | 144 km |
| 1952 | E. OF MINDANO, PHILIPPINES | Earthquake | 0.3 m | — | 136 km |
| 2012 | PHILIPPINE ISLANDS | Earthquake | 0.2 m | 1 | 114 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Cabalían (103 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Cabalían | Stratovolcano | 912 m (2,992 ft) | 1820 | 103 km |
| Mahagnao | Stratovolcano | 860 m (2,822 ft) | Unknown | 168 km |
| Camiguin | Stratovolcano(es) | 1,552 m (5,092 ft) | 1953 | 175 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 28.6 in | Coldest, Wettest |
| February | 79°F (26°C) | 22.2 in | |
| March | 80°F (27°C) | 17.2 in | |
| April | 81°F (27°C) | 12.1 in | |
| May | 83°F (28°C) | 8.0 in | Warmest |
| June | 83°F (28°C) | 7.3 in | |
| July | 82°F (28°C) | 6.4 in | |
| August | 83°F (28°C) | 5.1 in | Driest |
| September | 82°F (28°C) | 6.0 in | |
| October | 82°F (28°C) | 9.8 in | |
| November | 81°F (27°C) | 18.6 in | |
| December | 80°F (27°C) | 24.6 in |
San Isidro has a seasonal temperature swing of 4°F / from 78°F in January to 83°F in May. Total annual precipitation is 165.9 inches, with January being the wettest month (28.6") and August the driest (5.1").