# Si Don Chai Subdistrict, Chiang Khong, Chiang Rai Province > Source: https://wherepedia.org/thailand/chiang-rai/chiang-khong/si-don-chai/ Subdistrict · Chiang Khong # Si Don Chai Si Don Chai is a subdistrict (tambon) of Thailand in Chiang Khong, Chiang Rai Province. It covers **127.6 km²**. 19 named villages and localities are recorded here, and 24 mapped services such as hospitals, banks and schools. - 128km² - 24mapped services - 360 mtypical elevation ## Where is Si Don Chai? Si Don Chai lies in [Chiang Khong](https://wherepedia.org/thailand/chiang-rai/chiang-khong/), [Chiang Rai Province](https://wherepedia.org/thailand/chiang-rai/), [Thailand](https://wherepedia.org/thailand/). It borders 6 other subdistricts: [Chok Chai](https://wherepedia.org/thailand/chiang-rai/doi-luang/chok-chai/), [Huai So](https://wherepedia.org/thailand/chiang-rai/chiang-khong/huai-so/), [Khrueng](https://wherepedia.org/thailand/chiang-rai/chiang-khong/khrueng/), [Lai Ngao](https://wherepedia.org/thailand/chiang-rai/wiang-kaen/lai-ngao/), [Sathan](https://wherepedia.org/thailand/chiang-rai/chiang-khong/sathan/) and [Wiang](https://wherepedia.org/thailand/chiang-rai/chiang-khong/wiang/). By area it is the 865th largest of 7,425 subdistricts in Thailand. It covers 16.7% of [Chiang Khong](https://wherepedia.org/thailand/chiang-rai/chiang-khong/). The centre of Si Don Chai is about 710 km in a straight line from Bangkok, the capital. It is about 14 km from Chiang Khong, the main town of Chiang Khong. The centre point is at 20.1409° N, 100.3726° E. Local names: ศรีดอนชัย . 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 Si Don Chai Open gazetteers list **19 villages, towns and localities** in Si Don Chai. Settlements here lie between about 351 m and 390 m above sea level (median 360 m). - Ban Don Luang - Ban Dong Luang - Ban Khia - Ban Lung - Ban Mai Chedi - Ban Mai Don Mun - Ban Muang Chet Ton - Ban Mueang Ched Ton - Ban Pak Ing - Ban Pak Ing Tai (2) - Ban Rong Ha - Ban Si Chai Mongkhon - Ban Si Don Chai - Ban Si Mongkhon - Ban Tha Charoen - Ban Thung Sang - Ban Wai - Ban Wiang Doem - Ban Wiang Nuea 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 Si Don Chai Named natural and historic features inside Si Don Chai, from the GeoNames gazetteer. ### Water 6 rivers and streams; 5 reservoirs and tanks. - Ang Kep Nam Ban Khia - Ang Kep Nam Huai Khrai - Ang Kep Nam Huai Lao - Ang Kep Nam Huai Sang Nuea - Ang Kep Nam Huai Wai - Huai Khia - Huai Pong Ngae - Huai Rong Pueng - Huai Wai - Nam Lung - Nam Pung ### Hills and mountains 8 mountains. - Doi Khum Din · 789 m - Doi Mai Chek Wek · 764 m - Doi Ton · 754 m - Doi Huai Khai · 744 m - Doi Huai Khoi · 710 m - Doi Pha Tup · 666 m - Doi Mok · 591 m - Doi That · 455 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 Si Don Chai and the best time to visit Using the climate of Chiang Khong, the warmest month is Apr (average 27 °C) and the coolest is Dec (19 °C). About 1,127 mm of rain falls in a year; the wettest month is Aug (251 mm) and the driest Feb (5 mm). The most comfortable months for a visit are **October to April**. - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec Month Average °C Rain mm Jan 19 18 Feb 22 5 Mar 25 25 Apr 27 64 May 27 143 Jun 26 123 Jul 25 221 Aug 25 251 Sep 25 164 Oct 24 75 Nov 22 26 Dec 19 13 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Si Don Chai Need Nearest mapped Distance Hospital สถานีอนามัยบ้านเขียะ · Si Don Chai 2.3 km [Map](https://www.openstreetmap.org/?mlat=20.15072&mlon=100.35299#map=17/20.15072/100.35299) Bank สหกรณ์เครดิตยูเนี่ยนเชียงของ · Sathan 8.5 km [Map](https://www.openstreetmap.org/?mlat=20.21193&mlon=100.40260#map=17/20.21193/100.40260) ATM Atm ธนาคารไทยพาณิชย์ · Wiang 14 km [Map](https://www.openstreetmap.org/?mlat=20.26056&mlon=100.40696#map=17/20.26056/100.40696) Petrol pump PT · Si Don Chai 4.4 km [Map](https://www.openstreetmap.org/?mlat=20.14534&mlon=100.41419#map=17/20.14534/100.41419) Hotel บ้านไม้หอมโฮมสเตย์ เชียงของ · Si Don Chai 2.5 km [Map](https://www.openstreetmap.org/?mlat=20.13622&mlon=100.39641#map=17/20.13622/100.39641) Mall เทสโก้โลตัส สาขาเชียงของ · Wiang 12 km [Map](https://www.openstreetmap.org/?mlat=20.24361&mlon=100.41027#map=17/20.24361/100.41027) School โรงเรียนบ้านเขียะ · Si Don Chai 2.3 km [Map](https://www.openstreetmap.org/?mlat=20.14851&mlon=100.35231#map=17/20.14851/100.35231) College โรงเรียนบ้านหก · Bunrueang 16 km [Map](https://www.openstreetmap.org/?mlat=20.00240&mlon=100.34084#map=17/20.00240/100.34084) Police station Thacharoen police box · Si Don Chai 5.1 km [Map](https://www.openstreetmap.org/?mlat=20.13626&mlon=100.42137#map=17/20.13626/100.42137) 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 Si Don Chai Places mapped inside Si Don Chai in open map data, by type. - Hospitals3 - Petrol pumps2 - Hotels2 - Schools9 - Restaurants7 - Police stations1 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 Chiang Khong - Bunrueang - Huai So - Khrueng - Rim Khong - Sathan - Wiang ## Quick answers - Where is Si Don Chai?In Chiang Khong, Chiang Rai Province, Thailand - What borders Si Don Chai?Chok Chai, Huai So, Khrueng, Lai Ngao, Sathan and Wiang - How many villages are in Si Don Chai?19 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Si Don Chai?Settlements lie between 351 m and 390 m - How many reservoirs and tanks are in Si Don Chai?5 named in GeoNames - What is the highest point in Si Don Chai?Doi Khum Din (789 m, GeoNames elevation model) - What is the best time to visit Si Don Chai?October to April - Where is the nearest hospital to Si Don Chai?สถานีอนามัยบ้านเขียะ, about 2.3 km from the centre - Where is the nearest bank to Si Don Chai?สหกรณ์เครดิตยูเนี่ยนเชียงของ, about 8.5 km from the centre - Where is the nearest ATM to Si Don Chai?Atm ธนาคารไทยพาณิชย์, about 14 km from the centre - Where is the nearest petrol pump to Si Don Chai?PT, about 4.4 km from the centre - How many hospitals are in Si Don Chai?3 mapped - How many petrol pumps are in Si Don Chai?2 mapped - What is the P-code of Si Don Chai?TH570308 (OCHA common operational dataset)