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Diadi, Philippines

Cagayan Valley · Philippines

Diadi is a small city in Cagayan Valley, Philippines with a population of 15,567. Elevation: 906 ft (276 m). Average temperature: 79°F (26°C).

15,567 Population 223/sq mi density
906 ft Elevation 276 meters
79°F Avg Temperature 26°C
79.4 in Annual Rain
Asia / Manila Timezone

Discover Diadi, Philippines

Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
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Full City Profile

About Diadi

Diadi

Diadi, officially the Municipality of Diadi, is a municipality in the province of Nueva Vizcaya, Philippines. According to the 2024 census, it has a population of 20,438 people.

People

Population15,567
Density223/mi²

Climate

Avg Temp79°F (26°C)
Rain79.4 in/yr
Sunny Days192/yr
Elevation906 ft (276 m)
Population15,567
Population Density223 / sq mi
Elevation906 ft (276 m)
Coordinates16.7262°, 121.3589°
TimezoneAsia/Manila
Country🇵🇭 Philippines
State / ProvinceCagayan Valley
Average Temperature79°F (26°C)
January Average74°F (23°C)
July Average81°F (27°C)
Annual Precipitation79.4 inches (2,016 mm)
Annual Snowfall0.0 inches (0 cm)

About Diadi

Diadi is a small city in Philippines (Cagayan Valley) with a population of 15,567. The city sits at an elevation of 906 feet (276 meters) above sea level. The average annual temperature is 79°F (26°C). Temperatures range from 74°F in January to 81°F in July. Annual precipitation averages 79.4 inches. The timezone is Asia/Manila.

Climate in Diadi

Diadi has an average annual temperature of 22.7°C (73°F). The hottest month is May (25°C), the coldest is Jan (19.5°C). Average annual precipitation is 3204 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 19.5°C / 67°F 12.9° / 27.2° 133.7
Feb 20.1°C / 68°F 13.4° / 28.8° 79.8
Mar 22.2°C / 72°F 15.1° / 31.7° 100.3
Apr 24°C / 75°F 17° / 33.7° 105.9
May 25°C / 77°F 19.2° / 34.6° 252.7
Jun 24.5°C / 76°F 19.8° / 32.3° 264.9
Jul 24°C / 75°F 19.5° / 30.8° 396.5
Aug 23.8°C / 75°F 19.5° / 30.9° 365.8
Sep 23.7°C / 75°F 18.6° / 31.3° 375.9
Oct 22.9°C / 73°F 17.9° / 29.3° 411.6
Nov 22.2°C / 72°F 16.7° / 28.9° 319.6
Dec 20.9°C / 70°F 15.1° / 27.7° 397.2
Diadi has a warm climate with an average annual temperature of 79°F (26°C). Winters average 74°F in January while summers reach 81°F in July / relatively mild seasonal variation. The area gets 192 sunny days per year. Annual precipitation totals 79.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 906 feet.

Temperature

74°F Jan (23°C) 81°F Jul (27°C)
Annual Average78.8°F
46% above Philippines avg
January Average74°F (23°C)
July Average81°F (27°C)
Sunny Days192 days/yr

Geography

Elevation906 ft (276 m)
Area70.0 sq mi (181.2 km²)
Population Density223/sq mi
Coordinates16.7262°N, 121.3589°W
TimezoneAsia/Manila

Precipitation & Snow

Annual Rainfall 79.4"
109% above Philippines avg
Snowfall 0.0"
Wettest Month (Sep) 11.14"
Driest Month (Jan) 2.17"

Air Quality

Earthquake History

575 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.7. Most recent: M4.2 on May 31, 2025.

Jul 16, 1990 4 km E of Macapsing, Philippines M7.7 118 km
Jul 27, 2022 11 km NE of Bantay, Philippines M7.0 105 km
Jul 17, 1990 14 km NNW of Salinas, Philippines M6.5 48 km
Mar 19, 1992 7 km NNW of Besao, Philippines M6.3 74 km
Jul 17, 1990 10 km ESE of Ambuclao, Philippines M6.1 64 km
Nov 20, 1996 3 km ENE of Taloy, Philippines M5.9 98 km
Jul 20, 1990 8 km WNW of Salinas, Philippines M5.8 59 km
Jul 16, 1990 2 km NNE of Caronoan West, Philippines M5.7 108 km
Jul 18, 2000 15 km ESE of Espiritu, Philippines M5.7 145 km
Jan 13, 2008 4 km SSE of Bontoc, Philippines M5.7 53 km
Jun 19, 2000 4 km WNW of Santa Maria, Philippines M5.7 105 km
Jul 21, 1990 11 km WNW of Salinas, Philippines M5.7 59 km
Jun 14, 2000 24 km W of Tamorong, Philippines M5.7 140 km
Jul 16, 1990 19 km NNW of Salinas, Philippines M5.6 51 km
Jul 16, 1990 2 km N of Halog West, Philippines M5.6 108 km
Jul 23, 1990 6 km S of Loacan, Philippines M5.6 79 km
Jul 18, 1990 13 km WNW of Busilak, Philippines M5.6 45 km
May 2, 1996 4 km SE of Labayug, Philippines M5.5 105 km
Jan 12, 2001 19 km SE of Bantay, Philippines M5.5 83 km
Feb 6, 2019 1 km NNE of Guiling, Philippines M5.5 125 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

107 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5.

Year Name Category Closest
2025 Ragasa Category 5 288 km
2025 Fung-wong Category 4 61 km
2025 Co-may Category 1 210 km
2025 Matmo Category 1 47 km
2024 Yinxing Category 4 209 km
2024 Man-yi Category 4 70 km
2024 Usagi Category 4 152 km
2024 Ewiniar Category 2 175 km
2024 Toraji Category 1 39 km
2023 Doksuri Category 4 242 km
2023 Saola Category 4 164 km
2022 Noru Category 4 170 km
2022 Ma-on Category 1 124 km
2021 Chanthu Category 5 257 km
2020 Vamco Category 3 181 km
2019 Kalmaegi Category 2 216 km
2018 Mangkhut Category 5 142 km
2018 Yutu Category 4 26 km
2016 Sarika Category 4 100 km
2016 Haima Category 4 122 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 4.3 m (14 ft).

Year Location Cause Max Wave Deaths Distance
1970 PHILIPPINE SEA Earthquake 4.3 m 15 112 km
1990 W. LUZON ISLAND Earthquake 2.0 m 2,412 118 km
1968 E. LUZON ISLAND Earthquake 0.2 m 270 93 km
2022 N. LUZON ISLAND Earthquake 0.1 m 11 105 km
1880 E. LUZON ISLAND Eruption + Earthquake 20 96 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Ambalatungan Group (72 km).

Name Type Elevation Last Eruption Distance
Ambalatungan Group Compound 2,329 m (7,641 ft) Unknown 72 km
Arayat Stratovolcano 1,026 m (3,366 ft) Unknown 182 km
Cagua Stratovolcano 1,133 m (3,717 ft) 1860 185 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 74°F (23°C) 2.2 in Coldest, Driest
February 75°F (24°C) 3.4 in
March 79°F (26°C) 2.6 in
April 81°F (27°C) 3.7 in
May 83°F (28°C) 6.5 in Warmest
June 83°F (28°C) 6.6 in
July 81°F (27°C) 8.0 in
August 81°F (27°C) 8.9 in
September 80°F (27°C) 11.1 in Wettest
October 79°F (26°C) 10.1 in
November 77°F (25°C) 9.5 in
December 74°F (24°C) 6.9 in

Diadi has a seasonal temperature swing of 9°F / from 74°F in January to 83°F in May. Total annual precipitation is 79.4 inches, with September being the wettest month (11.1") and January the driest (2.2").

View full weather details →

Schools in Diadi

17 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
Balete Elementary School
Arwas Elementary School
Langka Primary School
San Pablo Elementary School
Pinya Elementary School
Escoting Elementary School
Duruarog Elementary School
Butao Elementary School
Bugnay Elementary School
Diadi National High School
Maguitawa Elementary School
Namamparan Elementary School
Diadi Central School
Dulao Elementary School
Halag Primary School – Halag 1 – Annex
Diadi National High School Annex
Taliktik Integrated School
View full schools details →

Radio Stations near Diadi

5 stations within ~55 km.

Station Genre Quality
Star FM Baguio AAC
Love Radio Santiago MP3 64 kbps
Radyo Natin Santiago AAC 64 kbps
Love Radio Santiago (M3U) MP3 64 kbps
Radyo Natin Candon AAC 64 kbps

Museums in Diadi

NameTypeAddressPhoneAnnual Revenue
Balay ti Santiago
People's Museum

Libraries in Diadi

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
Florentina’s Library0.0
Jubilee Library0.0
Municipal Library0.0
People's Library0.0
Quirino Provincial Library0.0
Rita’s Reading corner0.0

Farmers Markets in Diadi

NameAddressSeasonHoursOrganicWebsite
Aglipay Public Market
Bagabag Public Market
Bayombong Public Market
Cabarroguis Public Market
Cordon Public Market
Diadi Public Market
Lagawe Public Market
Lamut Public Market
Mayoyao Public Market
Public Market
Ramon Isabela Public Market
Saguday Public Market
San Mateo Public Market
Solano Public Market
Solano Public Market
Villaverde Public Market

Clinics in Diadi

1 clinics within city radius — OpenStreetMap data

Diadi Municipal Health Station

Gas Stations in Diadi

2 gas stations within city radius — OpenStreetMap data

Petron
Shell

Airports Near Diadi

6 airports within the area.

AirportIATAType
Cauayan AirportCYZMedium Airport
Loakan AirportBAGMedium Airport
Bagabag AirportSmall Airport
Casiguran AirportCGGSmall Airport
Cordon AirportSmall Airport
Lepanto Mines AirstripSmall Airport

Churches & Religious Organizations in Diadi

1 religious organizations (IRS tax-exempt data).

NameAddress
Iglesia ni Cristo - Lokal ng Diadi

Quick Facts

Timezone
Asia/Manila
Elevation
320 m (1,050 ft)
Area
181.2 km² (69.9 mi²)
Postal Code
3712
Website
diadi-nvizcaya.gov.ph/

🇵🇭 About Philippines

Capital Manila
Population 106,651,922
Area 300,000 km²
GDP (USD) $437,055,627,244
GDP per capita $3,804
HDI 0.710
Life expectancy 69.8 years
Internet users 83.8%
Urban population 55.1%
Currency PHP (Peso)
Languages English, Filipino
Calling code +63
TLD .ph
Driving side right

Public Holidays in Philippines

18 public holidays this year

Date Holiday Local Name
Jan 1 New Year's Day Bagong Taon
Feb 17 Chinese New Year Chinese New Year
Apr 2 Maundy Thursday Huwebes Santo
Apr 3 Good Friday Biyernes Santo
Apr 4 Holy Saturday Sabado de Gloria
Apr 9 Day of Valor Araw ng Kagitingan
May 1 Labour Day Araw ng Paggawa
Jun 12 Independence Day Araw ng Kalayaan
Aug 21 Ninoy Aquino Day Araw ng Kamatayan ni Senador Benigno Simeon "Ninoy" Aquino Jr.
Aug 31 National Heroes Day Araw ng mga Bayani
Oct 31 All Saints' Day Eve All Saints' Day Eve
Nov 1 All Saints' Day Araw ng mga Santo
Nov 30 Bonifacio Day Araw ni Gat Andres Bonifacio
Dec 8 Feast of the Immaculate Conception of Mary Kapistahan ng Immaculada Concepcion
Dec 24 Christmas Eve Christmas Eve
Dec 25 Christmas Day Araw ng Pasko
Dec 30 Rizal Day Araw ng Kamatayan ni Dr. Jose Rizal
Dec 31 Last Day of The Year Huling Araw ng Taon

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Frequently Asked Questions About Diadi

What is the population of Diadi?

Diadi has a population of 15,567 residents and is located in Philippines. The population density is 223 people per square mile, spread across 70.0 square miles.

What is the weather like in Diadi?

Diadi has a warm climate with an average annual temperature of 79°F (26°C). Winter temperatures average 74°F in January, while summers reach an average of 81°F in July. The area receives 192 sunny days per year. Annual rainfall totals 79.4 inches.

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