# Muang Yai Subdistrict, Pho Sai, Ubon Ratchathani Province > Source: https://wherepedia.org/thailand/ubon-ratchathani/pho-sai/muang-yai/ Subdistrict · Pho Sai # Muang Yai Muang Yai is a subdistrict (tambon) of Thailand in Pho Sai, Ubon Ratchathani Province. It covers **38.4 km²**. 19 named villages and localities are recorded here, and 5 mapped services such as hospitals, banks and schools. - 38.4km² - 5mapped services - 147 mtypical elevation ## Where is Muang Yai? Muang Yai lies in [Pho Sai](https://wherepedia.org/thailand/ubon-ratchathani/pho-sai/), [Ubon Ratchathani Province](https://wherepedia.org/thailand/ubon-ratchathani/), [Thailand](https://wherepedia.org/thailand/). It borders 5 other subdistricts: [Chiat](https://wherepedia.org/thailand/ubon-ratchathani/khemarat/chiat/), [Na Tan](https://wherepedia.org/thailand/ubon-ratchathani/na-tan/na-tan/), [Phang Khen](https://wherepedia.org/thailand/ubon-ratchathani/na-tan/phang-khen/), [Pho Sai](https://wherepedia.org/thailand/ubon-ratchathani/pho-sai/pho-sai/) and [Song Khon](https://wherepedia.org/thailand/ubon-ratchathani/pho-sai/song-khon/). By area it is the 4273rd largest of 7,425 subdistricts in Thailand. It covers 6.9% of [Pho Sai](https://wherepedia.org/thailand/ubon-ratchathani/pho-sai/). The centre of Muang Yai is about 564 km in a straight line from Bangkok, the capital. It is about 4.8 km from Pho Sai, the main town of Pho Sai. The centre point is at 15.8677° N, 105.2731° E. Local names: ม่วงใหญ่ . 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 Muang Yai Open gazetteers list **19 villages, towns and localities** in Muang Yai. Settlements here lie between about 140 m and 158 m above sea level (median 147 m). - Ban Chong Phalai - Ban Don Chik - Ban Don Krathot - Ban Don Phra - Ban Huai Su - Ban Kaeng Tai - Ban Lumphuk - Ban Muang Som - Ban Muang Yai - Ban Na Hin - Ban Na Kratai - Ban Na Mon - Ban Na Nang Wan - Ban Na Pa Mai - Ban Non Pho Din - Ban Non Si Suk - Ban Nong Yao - Ban Sang Sabaeng - Ban Tum 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 Muang Yai Named natural and historic features inside Muang Yai, from the GeoNames gazetteer. ### Water 2 rivers and streams. - Huai Hi - Huai Khat Lai 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 Muang Yai and the best time to visit Using the climate of Pho Sai, the warmest month is Apr (average 31 °C) and the coolest is Dec (23 °C). About 1,334 mm of rain falls in a year; the wettest month is Aug (274 mm) and the driest Jan (4 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 23 4 Feb 26 9 Mar 29 35 Apr 31 58 May 29 158 Jun 27 176 Jul 27 271 Aug 26 274 Sep 26 239 Oct 25 90 Nov 24 14 Dec 23 6 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Muang Yai Need Nearest mapped Distance Hospital รพ.สต. ม่วงใหญ่ · Muang Yai 1.5 km [Map](https://www.openstreetmap.org/?mlat=15.85491&mlon=105.26846#map=17/15.85491/105.26846) Bank ธกส นาตาล · Na Tan 3.8 km [Map](https://www.openstreetmap.org/?mlat=15.90057&mlon=105.28417#map=17/15.90057/105.28417) Petrol pump ปตท. · Na Tan 3.8 km [Map](https://www.openstreetmap.org/?mlat=15.89982&mlon=105.28609#map=17/15.89982/105.28609) Hotel บ้านโนนตาล · Na Tan 4.9 km [Map](https://www.openstreetmap.org/?mlat=15.90590&mlon=105.29529#map=17/15.90590/105.29529) Mall ส.รุ่งเรืองมินิมาร์ท · Na Tan 3.9 km [Map](https://www.openstreetmap.org/?mlat=15.89803&mlon=105.29140#map=17/15.89803/105.29140) School โรงเรียนบ้านนานางวาน · Muang Yai 1.2 km [Map](https://www.openstreetmap.org/?mlat=15.86884&mlon=105.28401#map=17/15.86884/105.28401) College ศูนย์ส่งเสริมการเรียนรู้อำเภอโพธิ์ไทร จังหวัดอุบลราชธานี · Pho Sai 5.3 km [Map](https://www.openstreetmap.org/?mlat=15.82507&mlon=105.25154#map=17/15.82507/105.25154) Police station สถานีตำรวจภูธรม่วงเฒ่า · Hua Na 9.8 km [Map](https://www.openstreetmap.org/?mlat=15.90042&mlon=105.18810#map=17/15.90042/105.18810) 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 Muang Yai Places mapped inside Muang Yai in open map data, by type. - Hospitals3 - 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 Pho Sai - Lao Ngam - Pho Sai - Samrong - Saraphi - Song Khon ## Quick answers - Where is Muang Yai?In Pho Sai, Ubon Ratchathani Province, Thailand - What borders Muang Yai?Chiat, Na Tan, Phang Khen, Pho Sai and Song Khon - How many villages are in Muang Yai?19 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Muang Yai?Settlements lie between 140 m and 158 m - What is the best time to visit Muang Yai?October to February - Where is the nearest hospital to Muang Yai?รพ.สต. ม่วงใหญ่, about 1.5 km from the centre - Where is the nearest bank to Muang Yai?ธกส นาตาล, about 3.8 km from the centre - Where is the nearest petrol pump to Muang Yai?ปตท., about 3.8 km from the centre - How many hospitals are in Muang Yai?3 mapped - What is the P-code of Muang Yai?TH342102 (OCHA common operational dataset)