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San Juan, Philippines
Cagayan Valley · Philippines
San Juan is a small town in Cagayan Valley, Philippines with a population of 2,517. Elevation: 112 ft (34 m). Average temperature: 81°F (27°C).
Data updated June 2026
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About San Juan
Santo Tomas, officially the Municipality of Santo Tomas, is a municipality in the province of Isabela, Philippines. According to the 2024 census, it has a population of 25,997 people.
People
Climate
| Population | 2,517 |
| Population Density | 15 / sq mi |
| Elevation | 112 ft (34 m) |
| Coordinates | 17.4056°, 121.7475° |
| Timezone | Asia/Manila |
| Country | 🇵🇭 Philippines |
| State / Province | Cagayan Valley |
| Average Temperature | 81°F (27°C) |
| January Average | 75°F (24°C) |
| July Average | 84°F (29°C) |
| Annual Precipitation | 69.7 inches (1,769 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
About San Juan
San Juan is a small town in Philippines (Cagayan Valley) with a population of 2,517. The city sits at an elevation of 112 feet (34 meters) above sea level. The average annual temperature is 81°F (27°C). Temperatures range from 75°F in January to 84°F in July. Annual precipitation averages 69.7 inches. The timezone is Asia/Manila.
Climate in San Juan
San Juan has an average annual temperature of 27.1°C (81°F). The hottest month is Jun (29.8°C), the coldest is Jan (23.4°C). Average annual precipitation is 1804 mm.
Temperature
| Annual Average | 80.6°F |
| 49% above Philippines avg | |
| January Average | 75°F (24°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 210 days/yr |
Geography
| Elevation | 112 ft (34 m) |
| Area | 166.2 sq mi (430.4 km²) |
| Population Density | 15/sq mi |
| Coordinates | 17.4056°N, 121.7475°W |
| Timezone | Asia/Manila |
Precipitation & Snow
Air Quality
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 0.2 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1968 | E. LUZON ISLAND | Earthquake | 0.2 m | 270 | 112 km |
| 2022 | N. LUZON ISLAND | Earthquake | 0.1 m | 11 | 99 km |
| 1983 | LUZON ISLAND | Earthquake | — | 16 | 131 km |
| 1627 | W. LUZON ISLAND | Earthquake | — | — | 144 km |
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Ambalatungan Group (69 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ambalatungan Group | Compound | 2,329 m (7,641 ft) | Unknown | 69 km |
| Cagua | Stratovolcano | 1,133 m (3,717 ft) | 1860 | 99 km |
| Camiguin de Babuyanes | Stratovolcano | 712 m (2,336 ft) | 1857 | 159 km |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 75°F (24°C) | 1.6 in | Coldest |
| February | 77°F (25°C) | 1.1 in | Driest |
| March | 81°F (27°C) | 1.3 in | |
| April | 84°F (29°C) | 2.1 in | |
| May | 85°F (29°C) | 5.2 in | Warmest |
| June | 85°F (29°C) | 6.0 in | |
| July | 84°F (29°C) | 7.0 in | |
| August | 83°F (28°C) | 8.7 in | |
| September | 82°F (28°C) | 8.4 in | |
| October | 80°F (27°C) | 12.3 in | Wettest |
| November | 78°F (26°C) | 10.9 in | |
| December | 75°F (24°C) | 5.2 in |
San Juan has a seasonal temperature swing of 10°F / from 75°F in January to 85°F in May. Total annual precipitation is 69.7 inches, with October being the wettest month (12.3") and February the driest (1.1").
Schools in San Juan
7 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| San Juan Elementary School | — | — | — | — |
| Biwag Elementary School | — | — | — | — |
| Saui Primary School | — | — | — | — |
| Delfin Albano High School – San Juan Annex | — | — | — | — |
| Candanum Elementary School | — | — | — | — |
| Biga Integrated School | — | — | — | — |
| Aggub Elementary School | — | — | — | — |
Radio Stations near San Juan
4 stations within ~55 km.
| Station | Genre | Quality | |
|---|---|---|---|
| Star FM Baguio | — | AAC | |
| Love Radio Santiago | — | MP3 64 kbps | |
| Love Radio Santiago (M3U) | — | MP3 64 kbps | |
| Radyo Natin Candon | — | AAC 64 kbps |
Museums in San Juan
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Cagayan Museum and Historical Research Center |
Libraries in San Juan
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Cagayan Provincial Library | 0.0 | |||||
| CSU Library | 0.0 | |||||
| Isabela State University Library | 0.0 | |||||
| Municipal Library | 0.0 | |||||
| Public Library | 0.0 |
Farmers Markets in San Juan
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| Cabagan Public Market | |||||
| Delfin Albano Public Market | |||||
| Don Domingo Public Market | |||||
| Mallig Public Market | |||||
| Meat & Vegetables | |||||
| Penablanca Public Market | |||||
| Public Market | |||||
| Solana Public Market | |||||
| Sta Maria Public Market | |||||
| Tuguegarao City New Public Market | |||||
| Tuguegarao New Public Market | |||||
| Tumauini Public Market, San Pedro Tumauni, Isabela |
Airports Near San Juan
9 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Cauayan Airport | CYZ | Medium Airport |
| Tuguegarao Airport | TUG | Medium Airport |
| Bicobian Bay Airstrip | — | Small Airport |
| Cordon Airport | — | Small Airport |
| Dibagat Airstrip | — | Small Airport |
| Lal-lo Airstrip | — | Small Airport |
| Maconacon Airstrip | — | Small Airport |
| Palanan Community Airport | — | Small Airport |
| Salolwan Airstrip | — | Small Airport |
Quick Facts
🇵🇭 About Philippines
Public Holidays in Philippines
18 public holidays this year
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Get ReportFrequently Asked Questions About San Juan
What is the population of San Juan?
San Juan has a population of 2,517 residents and is located in Philippines. The population density is 15 people per square mile, spread across 166.2 square miles.
What is the weather like in San Juan?
San Juan has a warm climate with an average annual temperature of 81°F (27°C). Winter temperatures average 75°F in January, while summers reach an average of 84°F in July. The area receives 210 sunny days per year. Annual rainfall totals 69.7 inches.