# Don Yai Subdistrict, Si Mueang Mai, Ubon Ratchathani Province > Source: https://wherepedia.org/thailand/ubon-ratchathani/si-mueang-mai/don-yai/ Subdistrict · Si Mueang Mai # Don Yai Don Yai is a subdistrict (tambon) of Thailand in Si Mueang Mai, Ubon Ratchathani Province. It covers **35.3 km²**. 8 named villages and localities are recorded here, and 5 mapped services such as hospitals, banks and schools. - 35.3km² - 5mapped services - 133 mtypical elevation ## Where is Don Yai? Don Yai lies in [Si Mueang Mai](https://wherepedia.org/thailand/ubon-ratchathani/si-mueang-mai/), [Ubon Ratchathani Province](https://wherepedia.org/thailand/ubon-ratchathani/), [Thailand](https://wherepedia.org/thailand/). It borders 3 other subdistricts: [Kham Lai](https://wherepedia.org/thailand/ubon-ratchathani/si-mueang-mai/kham-lai/), [Na Kham](https://wherepedia.org/thailand/ubon-ratchathani/si-mueang-mai/na-kham/) and [Warin](https://wherepedia.org/thailand/ubon-ratchathani/si-mueang-mai/warin/). By area it is the 4544th largest of 7,425 subdistricts in Thailand. It covers 3.5% of [Si Mueang Mai](https://wherepedia.org/thailand/ubon-ratchathani/si-mueang-mai/). The centre of Don Yai is about 551 km in a straight line from Bangkok, the capital. It is about 6.5 km from Si Mueang Mai, the main town of Si Mueang Mai. The centre point is at 15.4473° N, 105.3143° E. Local names: ดอนใหญ่ . 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 Don Yai Open gazetteers list **8 villages, towns and localities** in Don Yai. Settlements here lie between about 120 m and 157 m above sea level (median 133 m). - Ban Burapha - Ban Don Yai - Ban Don Yai Tai - Ban Khok Sawang - Ban Kok Swang - Ban Kud Sum Boon - Ban Non Nong Bua - Ban Thung Khun 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 Don Yai Named natural and historic features inside Don Yai, from the GeoNames gazetteer. ### Water 1 river or stream. - Huai Chan 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 Don Yai and the best time to visit Using the climate of Si Mueang Mai, the warmest month is Apr (average 30 °C) and the coolest is Dec (24 °C). About 1,412 mm of rain falls in a year; the wettest month is Aug (297 mm) and the driest Jan (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 24 5 Feb 27 5 Mar 29 31 Apr 30 61 May 29 146 Jun 27 173 Jul 26 293 Aug 26 297 Sep 26 262 Oct 25 104 Nov 25 23 Dec 24 12 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Don Yai Need Nearest mapped Distance Hospital รพ.สต.ดอนใหญ่ · Don Yai 2.4 km [Map](https://www.openstreetmap.org/?mlat=15.44566&mlon=105.29168#map=17/15.44566/105.29168) Bank ธกส. สาขาศรีเมืองใหม่ · Na Kham 6.6 km [Map](https://www.openstreetmap.org/?mlat=15.49380&mlon=105.27654#map=17/15.49380/105.27654) ATM ธนาคารออมสิน · Khong Chiam 24 km [Map](https://www.openstreetmap.org/?mlat=15.31804&mlon=105.49306#map=17/15.31804/105.49306) Petrol pump PT · Don Yai 1.8 km [Map](https://www.openstreetmap.org/?mlat=15.44359&mlon=105.29760#map=17/15.44359/105.29760) Hotel ที่พักสงฆ์ป่าโคกสว่าง · Don Yai 3.5 km [Map](https://www.openstreetmap.org/?mlat=15.47232&mlon=105.33390#map=17/15.47232/105.33390) Mall เซเว่น ปตท.ศรีเมืองใหม่ · Na Kham 5.9 km [Map](https://www.openstreetmap.org/?mlat=15.48723&mlon=105.27746#map=17/15.48723/105.27746) School โรงเรียนชุมชนบ้านดอนใหญ่-บูรพา · Don Yai 1.7 km [Map](https://www.openstreetmap.org/?mlat=15.44513&mlon=105.29822#map=17/15.44513/105.29822) College มหาวิทยาลัยราชภัฏอุบลราชธานี · Kaeng Kok 7.2 km [Map](https://www.openstreetmap.org/?mlat=15.48225&mlon=105.25748#map=17/15.48225/105.25748) Police station สถานีตำรวจภูธรศรีเมืองใหม่ · Na Kham 7.0 km [Map](https://www.openstreetmap.org/?mlat=15.50526&mlon=105.28992#map=17/15.50526/105.28992) 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 Don Yai Places mapped inside Don Yai in open map data, by type. - Hospitals1 - Petrol pumps1 - Hotels1 - Schools2 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 Si Mueang Mai - Kaeng Kok - Kham Lai - Lat Khwai - Na Kham - Na Loen - Nam Thaeng - Song Yang - Tabai - Ueat Yai - Warin ## Quick answers - Where is Don Yai?In Si Mueang Mai, Ubon Ratchathani Province, Thailand - What borders Don Yai?Kham Lai, Na Kham and Warin - How many villages are in Don Yai?8 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Don Yai?Settlements lie between 120 m and 157 m - What is the best time to visit Don Yai?October to February - Where is the nearest hospital to Don Yai?รพ.สต.ดอนใหญ่, about 2.4 km from the centre - Where is the nearest bank to Don Yai?ธกส. สาขาศรีเมืองใหม่, about 6.6 km from the centre - Where is the nearest ATM to Don Yai?ธนาคารออมสิน, about 24 km from the centre - Where is the nearest petrol pump to Don Yai?PT, about 1.8 km from the centre - How many hospitals are in Don Yai?1 mapped - How many petrol pumps are in Don Yai?1 mapped - What is the P-code of Don Yai?TH340211 (OCHA common operational dataset)