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Weather & Climate in Irasan, Philippines
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Irasan has a warm climate with an average annual temperature of 82°F (28°C). Winters average 80°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 171 sunny days per year. Annual precipitation totals 90.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 16 feet.
Temperature
80°F Jan (27°C)
82°F Jul (28°C)
| Annual Average | 81.5°F |
| 51% above US avg | |
| January Average | 80°F (27°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 171 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 95.1 sq mi (246.4 km²) |
| Population Density | 23/sq mi |
| Coordinates | 8.5260°N, 123.2060°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Earthquake History
256 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| May 20, 2017 | 25 km S of Alburquerque, Philippines | M6.0 | 126 km | 533 km |
| May 23, 1998 | 6 km WNW of Tabid, Philippines | M6.0 | 72 km | 658 km |
| May 13, 1994 | 6 km SW of Balagon, Philippines | M5.9 | 62 km | 33 km |
| Jul 1, 2019 | 48 km S of Valencia, Philippines | M5.9 | 130 km | 533 km |
| Oct 16, 1993 | 2 km NE of Malim, Philippines | M5.8 | 120 km | 31 km |
| Jul 23, 2010 | 29 km W of Litayan, Philippines | M5.8 | 148 km | 602 km |
| Feb 6, 2012 | 6 km WNW of Tiguib, Philippines | M5.8 | 145 km | 15 km |
| Feb 23, 1991 | 44 km WNW of Kalawit, Philippines | M5.7 | 125 km | 54 km |
| Jun 14, 2002 | 5 km W of Malabang, Philippines | M5.6 | 137 km | 33 km |
| Oct 18, 1991 | 12 km N of Siocon, Philippines | M5.6 | 143 km | 36 km |
| Feb 26, 2004 | 9 km NNW of Josefina, Philippines | M5.5 | 43 km | 12 km |
| Dec 18, 1991 | 39 km SSE of Alburquerque, Philippines | M5.5 | 127 km | 519 km |
| Nov 15, 2001 | 10 km SSE of Candoni, Philippines | M5.4 | 148 km | 33 km |
| Apr 28, 1992 | 50 km NW of Matangad, Philippines | M5.4 | 105 km | 568 km |
| Jan 23, 2025 | 8 km E of Siocon, Philippines | M5.4 | 143 km | 62 km |
| Jun 1, 2018 | 32 km ESE of Malim, Philippines | M5.3 | 146 km | 575 km |
| Jun 27, 1998 | 31 km S of Valencia, Philippines | M5.3 | 141 km | 540 km |
| Oct 2, 2012 | 15 km NNW of Dumingag, Philippines | M5.3 | 27 km | 52 km |
| Oct 1, 2011 | 30 km ESE of Malim, Philippines | M5.3 | 140 km | 615 km |
| Feb 6, 2012 | 2 km W of Tampocon, Philippines | M5.3 | 148 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
11 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Kalmaegi | Category 2 | — | 222 km |
| 2021 | Rai | Category 4 | 109 mph | 175 km |
| 2012 | Bopha | Category 4 | 98 mph | 54 km |
| 2005 | Roke | Category 1 | 52 mph | 272 km |
| 1995 | Zack | Category 2 | 63 mph | 254 km |
| 1994 | Owen | Category 1 | 69 mph | 222 km |
| 1993 | Nell | Category 1 | 69 mph | 231 km |
| 1990 | Mike | Category 4 | 98 mph | 231 km |
| 1986 | Marge | Category 1 | 69 mph | 224 km |
| 1984 | Ike | Category 4 | 104 mph | 180 km |
| 1982 | Nelson | Category 3 | 104 mph | 246 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.0 m (0 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1978 | MINDANAO ISLAND, PHILIPPINES | Earthquake | 0.0 m | — | 94 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Cuernos de Negros (81 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Cuernos de Negros | Complex | 1,862 m (6,109 ft) | Unknown | 81 km |
| Camiguin | Stratovolcano(es) | 1,552 m (5,092 ft) | 1953 | 178 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 80°F (27°C) | 4.7 in | Coldest |
| February | 80°F (27°C) | 3.1 in | |
| March | 82°F (28°C) | 3.0 in | Driest |
| April | 83°F (28°C) | 3.5 in | |
| May | 83°F (29°C) | 6.5 in | Warmest |
| June | 82°F (28°C) | 10.4 in | |
| July | 82°F (28°C) | 9.3 in | |
| August | 82°F (28°C) | 9.2 in | |
| September | 81°F (27°C) | 9.5 in | |
| October | 81°F (27°C) | 11.8 in | |
| November | 81°F (27°C) | 12.2 in | Wettest |
| December | 81°F (27°C) | 7.8 in |
Irasan has a seasonal temperature swing of 3°F / from 80°F in January to 83°F in May. Total annual precipitation is 90.9 inches, with November being the wettest month (12.2") and March the driest (3.0").