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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 79°F (26°C). Winters average 76°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 314 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 113.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,266 feet.
Temperature
76°F Jan (25°C)
80°F Jul (26°C)
| Annual Average | 78.9°F |
| 46% above US avg | |
| January Average | 76°F (25°C) |
| July Average | 80°F (26°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 1,266 ft (386 m) |
| Area | 422.1 sq mi (1,093.3 km²) |
| Population Density | 10/sq mi |
| Coordinates | 8.2583°N, 124.5931°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
274 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| May 23, 1998 | 6 km WNW of Tabid, Philippines | M6.0 | 96 km | 658 km |
| May 20, 2017 | 25 km S of Alburquerque, Philippines | M6.0 | 143 km | 533 km |
| Jul 1, 2019 | 48 km S of Valencia, Philippines | M5.9 | 111 km | 533 km |
| Apr 11, 2017 | 8 km N of Osias, Philippines | M5.8 | 69 km | 8 km |
| Jul 23, 2010 | 29 km W of Litayan, Philippines | M5.8 | 139 km | 602 km |
| Sep 4, 2016 | 7 km SE of Causwagan, Philippines | M5.8 | 143 km | 16 km |
| Feb 10, 2024 | 8 km W of Esperanza, Philippines | M5.8 | 117 km | 32 km |
| Jun 14, 2021 | 5 km NW of Don Carlos, Philippines | M5.7 | 74 km | 6 km |
| Sep 23, 2017 | 3 km E of Malinao, Philippines | M5.7 | 79 km | 8 km |
| Sep 3, 2012 | 5 km W of NIA Valencia, Philippines | M5.7 | 63 km | 10 km |
| Jun 7, 1999 | 1 km ESE of Aurora, Philippines | M5.7 | 143 km | 33 km |
| Jun 14, 2002 | 5 km W of Malabang, Philippines | M5.6 | 97 km | 33 km |
| Jun 1, 2013 | 13 km NNE of Banawa, Philippines | M5.6 | 114 km | 10 km |
| Apr 12, 2017 | 9 km S of Adtugan, Philippines | M5.5 | 67 km | 10 km |
| Jun 9, 1999 | 3 km E of Aurora, Philippines | M5.5 | 145 km | 33 km |
| Dec 18, 1991 | 39 km SSE of Alburquerque, Philippines | M5.5 | 126 km | 519 km |
| Jun 2, 2013 | 13 km NNW of Linao, Philippines | M5.5 | 115 km | 10 km |
| Feb 26, 2004 | 9 km NNW of Josefina, Philippines | M5.5 | 119 km | 12 km |
| Feb 10, 2024 | 1 km NNW of Salvacion, Philippines | M5.4 | 130 km | 50 km |
| Apr 28, 1992 | 50 km NW of Matangad, Philippines | M5.4 | 93 km | 568 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
9 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 | 202 km |
| 2012 | Bopha | Category 5 | 115 mph | 45 km |
| 1995 | Zack | Category 2 | 63 mph | 263 km |
| 1994 | Owen | Category 1 | 69 mph | 226 km |
| 1993 | Nell | Category 1 | 69 mph | 195 km |
| 1990 | Mike | Category 4 | 104 mph | 241 km |
| 1986 | Marge | Category 1 | 98 mph | 183 km |
| 1984 | Ike | Category 4 | 104 mph | 175 km |
| 1982 | Nelson | Category 3 | 115 mph | 238 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Camiguin (105 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Camiguin | Stratovolcano(es) | 1,552 m (5,092 ft) | 1953 | 105 km |
| Apo | Stratovolcano | 2,938 m (9,639 ft) | Unknown | 160 km |
| Leonard Range | Stratovolcano | 1,080 m (3,543 ft) | 120 | 188 km |
| Cuernos de Negros | Complex | 1,862 m (6,109 ft) | Unknown | 191 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (25°C) | 4.0 in | Coldest |
| February | 76°F (25°C) | 3.4 in | Driest |
| March | 78°F (25°C) | 3.9 in | |
| April | 80°F (27°C) | 4.1 in | |
| May | 80°F (27°C) | 9.1 in | Warmest |
| June | 79°F (26°C) | 12.3 in | |
| July | 80°F (26°C) | 11.9 in | |
| August | 79°F (26°C) | 11.1 in | |
| September | 79°F (26°C) | 13.2 in | Wettest |
| October | 78°F (26°C) | 11.6 in | |
| November | 78°F (25°C) | 7.8 in | |
| December | 77°F (25°C) | 6.1 in |
San Isidro has a seasonal temperature swing of 4°F / from 76°F in January to 80°F in May. Total annual precipitation is 98.5 inches, with September being the wettest month (13.2") and February the driest (3.4").