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San Alfonso, Philippines
Full City Profile
3,386
Population
16/sq mi density
95 ft
Elevation
29 meters
79°F
Avg Temperature
26°C
San Alfonso has a warm climate with an average annual temperature of 79°F (26°C). Winters average 77°F in January while summers reach 80°F in July. The area gets 140 sunny days per year. Annual precipitation totals 120.3 inches. The area receives 0.0 inches of snow annually.
Temperature
77°F Jan (25°C)
80°F Jul (27°C)
| Annual Average | 79.3°F |
| 47% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 140 days/yr |
Geography
| Elevation | 95 ft (29 m) |
| Area | 210.6 sq mi (545.6 km²) |
| Population Density | 16/sq mi |
| Coordinates | 7.7803°N, 126.4203°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Tsunami History
7 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 | — | 76 km |
| 1929 | E. MINDANAO ISLAND | Earthquake | 2.0 m | — | 102 km |
| 2023 | E. MINDANAO ISLAND | Earthquake | 0.3 m | 3 | 83 km |
| 2025 | MINDANAO ISLAND, PHILIPPINES | Earthquake | 0.3 m | 10 | 62 km |
| 1970 | PHILIPPINE TRENCH | Earthquake | 0.1 m | — | 113 km |
| 1924 | E. MINDANAO ISLAND | Eruption + Earthquake | — | — | 143 km |
| 1921 | PHILIPPINE TRENCH | Earthquake | — | — | 68 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Leonard Range (60 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Leonard Range | Stratovolcano | 1,080 m (3,543 ft) | 120 | 60 km |
| Apo | Stratovolcano | 2,938 m (9,639 ft) | Unknown | 155 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 20.6 in | Coldest, Wettest |
| February | 77°F (25°C) | 14.7 in | |
| March | 78°F (26°C) | 12.1 in | |
| April | 80°F (27°C) | 9.2 in | |
| May | 81°F (27°C) | 8.2 in | Warmest |
| June | 80°F (27°C) | 6.9 in | |
| July | 80°F (27°C) | 5.6 in | |
| August | 80°F (27°C) | 5.0 in | Driest |
| September | 80°F (27°C) | 5.8 in | |
| October | 80°F (27°C) | 7.9 in | |
| November | 79°F (26°C) | 9.3 in | |
| December | 78°F (26°C) | 15.1 in |
San Alfonso has a seasonal temperature swing of 3°F / from 77°F in January to 81°F in May. Total annual precipitation is 120.3 inches, with January being the wettest month (20.6") and August the driest (5.0").