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Irosin, Philippines
Bicol Region · Philippines
Irosin is a small city in Bicol Region, Philippines with a population of 20,716. Elevation: 108 ft (33 m). Average temperature: 79°F (26°C).
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About Irosin
Irosin, officially the Municipality of Irosin, is a municipality in the province of Sorsogon, Philippines. According to the 2024 census, it has a population of 59,540 people.
People
Climate
| Population | 20,716 |
| Population Density | 358 / sq mi |
| Elevation | 108 ft (33 m) |
| Coordinates | 12.7001°, 124.0322° |
| Timezone | Asia/Manila |
| Country | 🇵🇭 Philippines |
| State / Province | Bicol Region |
| Average Temperature | 79°F (26°C) |
| January Average | 76°F (24°C) |
| July Average | 80°F (27°C) |
| Annual Precipitation | 122.2 inches (3,104 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
About Irosin
Irosin is a small city in Philippines (Bicol Region) with a population of 20,716. The city sits at an elevation of 108 feet (33 meters) above sea level. The average annual temperature is 79°F (26°C). Temperatures range from 76°F in January to 80°F in July. Annual precipitation averages 122.2 inches. The timezone is Asia/Manila.
Climate in Irosin
Irosin has an average annual temperature of 27.6°C (82°F). The hottest month is May (28.9°C), the coldest is Feb (25.8°C). Average annual precipitation is 2883 mm.
Temperature
| Annual Average | 78.7°F |
| 46% above Philippines avg | |
| January Average | 76°F (24°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 134 days/yr |
Geography
| Elevation | 108 ft (33 m) |
| Area | 57.9 sq mi (149.9 km²) |
| Population Density | 358/sq mi |
| Coordinates | 12.7001°N, 124.0322°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 1.0 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2003 | SAMAR SEA | Eruption + Earthquake | 1.0 m | — | 59 km |
| 1925 | PHILIPPINE SEA | Earthquake | — | — | 110 km |
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Bulusan (8 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Bulusan | Stratovolcano(es) | 1,535 m (5,036 ft) | 2017 | 8 km |
| Pocdol Mountains | Compound | 1,102 m (3,615 ft) | Unknown | 40 km |
| Isarog | Stratovolcano | 1,966 m (6,450 ft) | -3500 | 128 km |
| Biliran | Compound | 1,301 m (4,268 ft) | 1939 | 142 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 76°F (24°C) | 13.7 in | Coldest |
| February | 76°F (24°C) | 8.1 in | |
| March | 77°F (25°C) | 6.8 in | |
| April | 79°F (26°C) | 5.3 in | Driest |
| May | 81°F (27°C) | 6.1 in | Warmest |
| June | 81°F (27°C) | 7.4 in | |
| July | 80°F (27°C) | 9.2 in | |
| August | 80°F (27°C) | 8.0 in | |
| September | 80°F (27°C) | 9.5 in | |
| October | 79°F (26°C) | 13.9 in | |
| November | 78°F (26°C) | 16.3 in | |
| December | 77°F (25°C) | 18.0 in | Wettest |
Irosin has a seasonal temperature swing of 5°F / from 76°F in January to 81°F in May. Total annual precipitation is 122.2 inches, with December being the wettest month (18.0") and April the driest (5.3").
Schools in Irosin
23 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| Bacolod Elementary School | — | — | — | — |
| Holy Academy of Irosin | — | — | — | — |
| Santa Teresita Elementary School | — | — | — | — |
| Salvacion Elementary School | — | — | — | — |
| Sisigon Elementary School | — | — | — | — |
| Hidhid Elementary School | — | — | — | — |
| Carriedo Elementary School | — | — | — | — |
| San Isidro Elementary School | — | — | — | — |
| Macawayan Elementary School | — | — | — | — |
| Laboy Elementary School | — | — | — | — |
| Liang Elementary School | — | — | — | — |
| San Agustin Primary School | — | — | — | — |
| Sisigon Elementary School | — | — | — | — |
| Pangi Elementary School | — | — | — | — |
| Casini Elementary School | — | — | — | — |
| Batang Elementary School | — | — | — | — |
| Mapaso Elementary School | — | — | — | — |
| Patag Elementary School | — | — | — | — |
| Santo Domingo Elementary School | — | — | — | — |
| Tabon-tabon Elementary School | — | — | — | — |
| Irosin Central School | — | — | — | — |
| Buenavista Elementary School | — | — | — | — |
| Gallanosa National High School | — | — | — | — |
Radio Stations near Irosin
3 stations within ~55 km.
| Station | Genre | Quality | |
|---|---|---|---|
| Bespren Radio | pop | AAC+ 128 kbps | |
| Love Radio Legazpi | — | MP3 96 kbps | |
| OK-FM Sorsogon | — | MP3 73 kbps |
Libraries in Irosin
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Bulusan Public Library | 0.0 |
Farmers Markets in Irosin
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| Bulan Public Market | |||||
| Bulusan Public Market | |||||
| Casiguran Public Market | |||||
| Gubat Public Market | |||||
| Matnog Wet Market | |||||
| Poblacion Castilla Local Market | |||||
| Public Market | |||||
| Santa Magdalena Public Market |
Restaurants in Irosin
2 restaurants within city radius — OpenStreetMap data
Cafes in Irosin
1 cafes within city radius — OpenStreetMap data
Gas Stations in Irosin
2 gas stations within city radius — OpenStreetMap data
Banks in Irosin
2 banks within city radius — OpenStreetMap data
Airports Near Irosin
10 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Bicol International Airport | DRP | Large Airport |
| Calbayog Airport | CYP | Medium Airport |
| Catarman National Airport | CRM | Medium Airport |
| Moises R. Espinosa Airport | MBT | Medium Airport |
| Amoroy Airport | — | Small Airport |
| Bacon Community Airport | — | Small Airport |
| Bulan Airport | — | Small Airport |
| Calanay Airport | — | Small Airport |
| Manato Airport | — | Small Airport |
| San Antonio Airport | — | Small Airport |
Churches & Religious Organizations in Irosin
4 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Iglesia ni Cristo - Lokal ng Irosin | |
| Iglesia ni Cristo - Lokal ng Sisigon | |
| Kingdom Hall of Jehovah's Witnesses | |
| St. Michael the Archangel Parish |
Quick Facts
🇵🇭 About Philippines
Public Holidays in Philippines
18 public holidays this year
Frequently Asked Questions About Irosin
What is the population of Irosin?
Irosin has a population of 20,716 residents and is located in Philippines. The population density is 358 people per square mile, spread across 57.9 square miles.
What is the weather like in Irosin?
Irosin has a warm climate with an average annual temperature of 79°F (26°C). Winter temperatures average 76°F in January, while summers reach an average of 80°F in July. The area receives 134 sunny days per year, below the national average of 205. Annual rainfall totals 122.2 inches.