# Bayao Subdistrict, Wang Sam Mo, Udon Thani Province – Villages > Source: https://wherepedia.org/thailand/udon-thani/wang-sam-mo/bayao/ Subdistrict · Wang Sam Mo # Bayao Bayao is a subdistrict (tambon) of Thailand in Wang Sam Mo, Udon Thani Province. It covers **202.7 km²**. 14 named villages and localities are recorded here, and 7 mapped services such as hospitals, banks and schools. - 203km² - 7mapped services - 246 mtypical elevation ## Where is Bayao? Bayao lies in [Wang Sam Mo](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/), [Udon Thani Province](https://wherepedia.org/thailand/udon-thani/), [Thailand](https://wherepedia.org/thailand/). It borders 7 other subdistricts: [Hua Na Kham](https://wherepedia.org/thailand/udon-thani/si-that/hua-na-kham/), [Kham Lo](https://wherepedia.org/thailand/udon-thani/chai-wan/kham-lo/), [Nong Kung Thap Ma](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/nong-kung-thap-ma/), [Nong Nok Khian](https://wherepedia.org/thailand/udon-thani/si-that/nong-nok-khian/), [Nong Ya Sai](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/nong-ya-sai/), [Pha Suk](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/pha-suk/) and [Wang Sam Mo](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/wang-sam-mo/). By area it is the 393rd largest of 7,425 subdistricts in Thailand. It covers 27.1% of [Wang Sam Mo](https://wherepedia.org/thailand/udon-thani/wang-sam-mo/). The centre of Bayao is about 484 km in a straight line from Bangkok, the capital. It is about 14 km from Wang Sam Mo, the main town of Wang Sam Mo. The centre point is at 17.0809° N, 103.4207° E. Local names: บะยาว . Source: [Royal Thai Survey Department via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-tha). ## Villages and localities in Bayao Open gazetteers list **14 villages, towns and localities** in Bayao. Settlements here lie between about 197 m and 311 m above sea level (median 246 m). - Ban Ba Yao - Ban Dong Ngam Noi - Ban Khok Lao - Ban Khok Sawang - Ban Na Chumphon - Ban Na Kae - Ban Na Nok Chum - Ban Na Prong - Ban Na Tat - Ban Noi Phatthana - Ban Nong Chang - Ban Pa Oi - Ban Phu Din - Ban Saphan Luean Lam Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/); [© OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements](https://www.openstreetmap.org/copyright). ## Landscape and landmarks of Bayao Named natural and historic features inside Bayao, from the GeoNames gazetteer. ### Water 3 reservoirs and tanks. - Ang Kep Nam Huai Bong - Ang Kep Nam Huai Klang - Ang Kep Nam Kham Mak Yang ### Hills and mountains 5 hills; 1 mountain. - Phu Phloen · 326 m - Phu Mai Po · 288 m - Phu Hin Liam · 270 m - Phu Ya Nang · 265 m - Phu Noi · 250 m - Phu Sanam · 197 m Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/). Places of worship are not listed. Elevations are from the GeoNames terrain model and are approximate. ## Weather in Bayao and the best time to visit Using the climate of Wang Sam Mo, the warmest month is Apr (average 31 °C) and the coolest is Dec (21 °C). About 1,434 mm of rain falls in a year; the wettest month is Aug (287 mm) and the driest Dec (5 mm). The most comfortable months for a visit are **October to February**. - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec Month Average °C Rain mm Jan 22 7 Feb 26 18 Mar 29 44 Apr 31 80 May 29 191 Jun 27 197 Jul 27 245 Aug 26 287 Sep 26 244 Oct 25 100 Nov 23 17 Dec 21 5 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Bayao Need Nearest mapped Distance Hospital สถานีอนามัยบ้านนาตาด · Bayao 0.5 km [Map](https://www.openstreetmap.org/?mlat=17.07597&mlon=103.42036#map=17/17.07597/103.42036) Bank ธนาคารออมสิน สาขาวังสามหมอ · Wang Sam Mo 15 km [Map](https://www.openstreetmap.org/?mlat=16.94960&mlon=103.43536#map=17/16.94960/103.43536) ATM ธกส.ศรีธาตุ · Si That 25 km [Map](https://www.openstreetmap.org/?mlat=16.97462&mlon=103.21034#map=17/16.97462/103.21034) Petrol pump Caltex · Wang Sam Mo 13 km [Map](https://www.openstreetmap.org/?mlat=16.96301&mlon=103.43574#map=17/16.96301/103.43574) Hotel บ้านสวนครูแอ๋ว · Nong Kung Thap Ma 5.2 km [Map](https://www.openstreetmap.org/?mlat=17.04340&mlon=103.44982#map=17/17.04340/103.44982) Mall ร้านฟีฟ่าโมบาย · Tha Sila 19 km [Map](https://www.openstreetmap.org/?mlat=17.24632&mlon=103.36749#map=17/17.24632/103.36749) School โรงเรียนบ้านนาตาดนาโปร่ง · Bayao 0.9 km [Map](https://www.openstreetmap.org/?mlat=17.08091&mlon=103.42876#map=17/17.08091/103.42876) College ห้องประชุมวังไม้ กศน.อำเภอวังสามหมอ · Wang Sam Mo 15 km [Map](https://www.openstreetmap.org/?mlat=16.94978&mlon=103.43027#map=17/16.94978/103.43027) Police station สภอ.วังสามหมอ · Wang Sam Mo 15 km [Map](https://www.openstreetmap.org/?mlat=16.94976&mlon=103.42754#map=17/16.94976/103.42754) Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/). Straight-line distance from the centre of the division, within 40 km. ## Hospitals, banks and other services in Bayao Places mapped inside Bayao in open map data, by type. - Hospitals5 - Schools1 - Restaurants1 Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/). Coverage depends on what has been mapped; contact details are not shown. ## Other subdistricts in Wang Sam Mo - Kham Khok Sung - Nong Kung Thap Ma - Nong Ya Sai - Pha Suk - Wang Sam Mo ## Quick answers - Where is Bayao?In Wang Sam Mo, Udon Thani Province, Thailand - What borders Bayao?Hua Na Kham, Kham Lo, Nong Kung Thap Ma, Nong Nok Khian, Nong Ya Sai, Pha Suk and Wang Sam Mo - How many villages are in Bayao?14 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Bayao?Settlements lie between 197 m and 311 m - How many reservoirs and tanks are in Bayao?3 named in GeoNames - What is the highest point in Bayao?Phu Phloen (326 m, GeoNames elevation model) - What is the best time to visit Bayao?October to February - Where is the nearest hospital to Bayao?สถานีอนามัยบ้านนาตาด, about 0.5 km from the centre - Where is the nearest bank to Bayao?ธนาคารออมสิน สาขาวังสามหมอ, about 15 km from the centre - Where is the nearest ATM to Bayao?ธกส.ศรีธาตุ, about 25 km from the centre - Where is the nearest petrol pump to Bayao?Caltex, about 13 km from the centre - How many hospitals are in Bayao?5 mapped - What is the P-code of Bayao?TH411003 (OCHA common operational dataset)