# Si-O Subdistrict, Kumphawapi, Udon Thani Province – Villages > Source: https://wherepedia.org/thailand/udon-thani/kumphawapi/si-o/ Subdistrict · Kumphawapi # Si-O Si-O is a subdistrict (tambon) of Thailand in Kumphawapi, Udon Thani Province. It covers **34.6 km²**. 8 named villages and localities are recorded here, and 5 mapped services such as hospitals, banks and schools. - 34.6km² - 5mapped services - 180 mtypical elevation ## Where is Si-O? Si-O lies in [Kumphawapi](https://wherepedia.org/thailand/udon-thani/kumphawapi/), [Udon Thani Province](https://wherepedia.org/thailand/udon-thani/), [Thailand](https://wherepedia.org/thailand/). It borders 5 other subdistricts: [Ban Prong](https://wherepedia.org/thailand/udon-thani/si-that/ban-prong/), [Bung Kaeo](https://wherepedia.org/thailand/udon-thani/non-sa-at/bung-kaeo/), [Nong Wa](https://wherepedia.org/thailand/udon-thani/kumphawapi/nong-wa/), [Tat Thong](https://wherepedia.org/thailand/udon-thani/si-that/tat-thong/) and [Tha Li](https://wherepedia.org/thailand/udon-thani/kumphawapi/tha-li/). By area it is the 4595th largest of 7,425 subdistricts in Thailand. It covers 5.1% of [Kumphawapi](https://wherepedia.org/thailand/udon-thani/kumphawapi/). The centre of Si-O is about 452 km in a straight line from Bangkok, the capital. It is about 13 km from Kumphawapi, the main town of Kumphawapi. The centre point is at 16.9960° N, 103.0454° E. Local names: สีออ . 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-O Open gazetteers list **8 villages, towns and localities** in Si-O. Settlements here lie between about 177 m and 186 m above sea level (median 180 m). - Ban Khok Sawang - Ban Non Khwao - Ban Nong Daeng - Ban Nong Hoi - Ban Nong Kwang - Ban Nong Udom - Ban Si O - Ban Si Sawang Watthana 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). ## Weather in Si-O and the best time to visit Using the climate of Kumphawapi, 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 Si-O Need Nearest mapped Distance Hospital โรงพยาบาลส่งเสริมสุขภาพตำบลสีออ · Si-O 0.9 km [Map](https://www.openstreetmap.org/?mlat=16.99784&mlon=103.05334#map=17/16.99784/103.05334) Bank ธนาคารกสิกรไทย สาขากุมภวาปี · Kumphawapi 13 km [Map](https://www.openstreetmap.org/?mlat=17.11000&mlon=103.01749#map=17/17.11000/103.01749) ATM Bank for Agriculture and Agricultural Cooperatives (BAAC) · Tum Tai 14 km [Map](https://www.openstreetmap.org/?mlat=17.11471&mlon=102.99807#map=17/17.11471/102.99807) Petrol pump Fuel Station · Tat Thong 8.7 km [Map](https://www.openstreetmap.org/?mlat=17.04039&mlon=103.11306#map=17/17.04039/103.11306) Hotel Udon Country Hill & Farm · Nong Wa 5.3 km [Map](https://www.openstreetmap.org/?mlat=17.02150&mlon=103.00384#map=17/17.02150/103.00384) Mall ร้านไอนาย ก๊อปี้เซ็นเตอร์ · Kumphawapi 13 km [Map](https://www.openstreetmap.org/?mlat=17.11298&mlon=103.01800#map=17/17.11298/103.01800) School โรงเรียนบ้านป่าหวาย · Tat Thong 5.9 km [Map](https://www.openstreetmap.org/?mlat=17.02561&mlon=103.09150#map=17/17.02561/103.09150) College โรงเรียนอนุบาลโนนสะอาด · Tha Li 3.8 km [Map](https://www.openstreetmap.org/?mlat=16.97025&mlon=103.06869#map=17/16.97025/103.06869) Police station สถานีตำรวจภูธรทรกุมภวาปี · Kumphawapi 14 km [Map](https://www.openstreetmap.org/?mlat=17.11529&mlon=103.01741#map=17/17.11529/103.01741) 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-O Places mapped inside Si-O in open map data, by type. - Hospitals1 - Restaurants4 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 Kumphawapi - Chae Lae - Chiang Wae - Huai Koeng - Kumphawapi - Nong Wa - Pakho - Pha Suk - Phan Don - Soe Phloe - Tha Li - Tum Tai - Wiang Kham ## Quick answers - Where is Si-O?In Kumphawapi, Udon Thani Province, Thailand - What borders Si-O?Ban Prong, Bung Kaeo, Nong Wa, Tat Thong and Tha Li - How many villages are in Si-O?8 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Si-O?Settlements lie between 177 m and 186 m - What is the best time to visit Si-O?October to February - Where is the nearest hospital to Si-O?โรงพยาบาลส่งเสริมสุขภาพตำบลสีออ, about 0.9 km from the centre - Where is the nearest bank to Si-O?ธนาคารกสิกรไทย สาขากุมภวาปี, about 13 km from the centre - Where is the nearest ATM to Si-O?Bank for Agriculture and Agricultural Cooperatives (BAAC), about 14 km from the centre - Where is the nearest petrol pump to Si-O?Fuel Station, about 8.7 km from the centre - How many hospitals are in Si-O?1 mapped - What is the P-code of Si-O?TH410410 (OCHA common operational dataset)