# Na Sai Subdistrict, Phibun Rak, Udon Thani Province – Villages > Source: https://wherepedia.org/thailand/udon-thani/phibun-rak/na-sai/ Subdistrict · Phibun Rak # Na Sai Na Sai is a subdistrict (tambon) of Thailand in Phibun Rak, Udon Thani Province. It covers **65.6 km²**. 9 named villages and localities are recorded here, and 5 mapped services such as hospitals, banks and schools. - 65.6km² - 5mapped services - 175 mtypical elevation ## Where is Na Sai? Na Sai lies in [Phibun Rak](https://wherepedia.org/thailand/udon-thani/phibun-rak/), [Udon Thani Province](https://wherepedia.org/thailand/udon-thani/), [Thailand](https://wherepedia.org/thailand/). It borders 9 other subdistricts: [Ban Chai](https://wherepedia.org/thailand/udon-thani/ban-dung/ban-chai/), [Ban Daeng](https://wherepedia.org/thailand/udon-thani/phibun-rak/ban-daeng/), [Na Chum Saeng](https://wherepedia.org/thailand/udon-thani/thung-fon/na-chum-saeng/), [Na Kham](https://wherepedia.org/thailand/udon-thani/ban-dung/na-kham/), [Na Thom](https://wherepedia.org/thailand/udon-thani/thung-fon/na-thom/), [Sabaeng](https://wherepedia.org/thailand/udon-thani/nong-han/sabaeng/), [Sum Sao](https://wherepedia.org/thailand/udon-thani/phen/sum-sao/), [Tao Hai](https://wherepedia.org/thailand/udon-thani/phen/tao-hai/) and [Thung Yai](https://wherepedia.org/thailand/udon-thani/thung-fon/thung-yai/). By area it is the 2441st largest of 7,425 subdistricts in Thailand. It covers 33.5% of [Phibun Rak](https://wherepedia.org/thailand/udon-thani/phibun-rak/). The centre of Na Sai is about 508 km in a straight line from Bangkok, the capital. It is about 6.5 km from Phibun Rak, the main town of Phibun Rak. The centre point is at 17.5607° N, 103.1184° E. Local names: นาทราย . 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 Na Sai Open gazetteers list **9 villages, towns and localities** in Na Sai. Settlements here lie between about 169 m and 190 m above sea level (median 175 m). - Ban Don Muang - Ban Michai Phatthana - Ban Na Nok Hong - Ban Na Sai - Ban Na Sai Si Wilai - Ban Nam Rot - Ban Nong Phai - Ban Seri Phatthana - Ban Thon Na Phloen 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 Na Sai Named natural and historic features inside Na Sai, from the GeoNames gazetteer. ### Water 2 rivers and streams. - Huai Ban - Huai Wang Chang 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 Na Sai and the best time to visit Using the climate of Phibun Rak, the warmest month is Apr (average 31 °C) and the coolest is Dec (20 °C). About 1,478 mm of rain falls in a year; the wettest month is Aug (306 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 25 18 Mar 28 44 Apr 31 74 May 29 199 Jun 28 211 Jul 27 264 Aug 26 306 Sep 26 238 Oct 25 96 Nov 23 16 Dec 20 5 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Na Sai Need Nearest mapped Distance Hospital โรงพยาบาลส่งเสริมสุขภาพตำบลบ้านนาทราย · Na Sai 3.6 km [Map](https://www.openstreetmap.org/?mlat=17.52807&mlon=103.11697#map=17/17.52807/103.11697) Bank ธกส พิบูลย์รักษ์ · Ban Daeng 6.7 km [Map](https://www.openstreetmap.org/?mlat=17.55307&mlon=103.05602#map=17/17.55307/103.05602) ATM Kasikornbank · Si Suttho 19 km [Map](https://www.openstreetmap.org/?mlat=17.67499&mlon=103.25320#map=17/17.67499/103.25320) Petrol pump PTT · Sum Sao 14 km [Map](https://www.openstreetmap.org/?mlat=17.58190&mlon=102.98794#map=17/17.58190/102.98794) Hotel โนนสวรรค์ ทุ่งฝน อุดรธานี · Na Thom 7.7 km [Map](https://www.openstreetmap.org/?mlat=17.53548&mlon=103.18630#map=17/17.53548/103.18630) Mall เซเว่น สาขาพิบูลย์รักษ์ · Ban Daeng 6.8 km [Map](https://www.openstreetmap.org/?mlat=17.55299&mlon=103.05502#map=17/17.55299/103.05502) School โรงเรียนบ้านหนองบัวบาน · Sum Sao 4.9 km [Map](https://www.openstreetmap.org/?mlat=17.58904&mlon=103.08298#map=17/17.58904/103.08298) College โรงเรียนบ้านดงศรีสำราญ · Ban Lao 16 km [Map](https://www.openstreetmap.org/?mlat=17.70089&mlon=103.06934#map=17/17.70089/103.06934) Police station สภ.พิบูลย์รักษ์ · Ban Daeng 6.6 km [Map](https://www.openstreetmap.org/?mlat=17.54705&mlon=103.05737#map=17/17.54705/103.05737) 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 Na Sai Places mapped inside Na Sai 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 Phibun Rak - Ban Daeng - Don Kloi ## Quick answers - Where is Na Sai?In Phibun Rak, Udon Thani Province, Thailand - What borders Na Sai?Ban Chai, Ban Daeng, Na Chum Saeng, Na Kham, Na Thom, Sabaeng, Sum Sao, Tao Hai and Thung Yai - How many villages are in Na Sai?9 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Na Sai?Settlements lie between 169 m and 190 m - What is the best time to visit Na Sai?October to February - Where is the nearest hospital to Na Sai?โรงพยาบาลส่งเสริมสุขภาพตำบลบ้านนาทราย, about 3.6 km from the centre - Where is the nearest bank to Na Sai?ธกส พิบูลย์รักษ์, about 6.7 km from the centre - Where is the nearest ATM to Na Sai?Kasikornbank, about 19 km from the centre - Where is the nearest petrol pump to Na Sai?PTT, about 14 km from the centre - How many hospitals are in Na Sai?3 mapped - What is the P-code of Na Sai?TH412302 (OCHA common operational dataset)