# Si Mongkhon Subdistrict, Sai Yok, Kanchanaburi Province > Source: https://wherepedia.org/thailand/kanchanaburi/sai-yok/si-mongkhon/ Subdistrict · Sai Yok # Si Mongkhon Si Mongkhon is a subdistrict (tambon) of Thailand in Sai Yok, Kanchanaburi Province. It covers **292.1 km²**. 31 named villages and localities are recorded here, and 15 mapped services such as hospitals, banks and schools. - 292km² - 15mapped services - 74 mtypical elevation ## Where is Si Mongkhon? Si Mongkhon lies in [Sai Yok](https://wherepedia.org/thailand/kanchanaburi/sai-yok/), [Kanchanaburi Province](https://wherepedia.org/thailand/kanchanaburi/), [Thailand](https://wherepedia.org/thailand/). It borders 4 other subdistricts: [Ban Kao](https://wherepedia.org/thailand/kanchanaburi/mueang-kanchanaburi/ban-kao/), [Bong Ti](https://wherepedia.org/thailand/kanchanaburi/sai-yok/bong-ti/), [Lum Sum](https://wherepedia.org/thailand/kanchanaburi/sai-yok/lum-sum/) and [Sing](https://wherepedia.org/thailand/kanchanaburi/sai-yok/sing/). By area it is the 198th largest of 7,425 subdistricts in Thailand. It covers 11.3% of [Sai Yok](https://wherepedia.org/thailand/kanchanaburi/sai-yok/). The centre of Si Mongkhon is about 150 km in a straight line from Bangkok, the capital. It is about 13 km from Sai Yok, the main town of Sai Yok. The centre point is at 13.9998° N, 99.1377° E. Local names: ศรีมงคล . 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 Mongkhon Open gazetteers list **31 villages, towns and localities** in Si Mongkhon. Settlements here lie between about 44 m and 155 m above sea level (median 74 m). - Ban Hin Dat - Ban Huai Katha Thong - Ban Huai Katha Tong - Ban Huai Mae Kraban - Ban Khao Chong Pratu - Ban Khao Nom Phatthana - Ban Khao Pom - Ban Na Khao Kloi - Ban Nong Chaeng - Ban Nong Chik - Ban Nong Hoi - Ban Nong Pla Sio - Ban Nong Pladuk - Ban Nong Plalai - Ban Nong Prue - Ban Nong Ya Plong - Ban Phu I Rueang - Ban Phu Rak Mai - Ban Phu Rung Rueang - Ban Phu Tha Krathum - Ban Sam Lin - Ban Si Mongkhon - Ban Tha Kham Sut - Ban Tha Maduea - Ban Tha O - Ban Thung Chang - Ban Thung Ruea Klon - Ban Thung Yao - Ban Tung Ruen Klon - Ban Wang Nam Khiao - Ban Yang Thon 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 Mongkhon Named natural and historic features inside Si Mongkhon, from the GeoNames gazetteer. ### Water 2 reservoirs and tanks; 1 river or stream. - Ang Kep Nam Huai Katha Taek - Ang Kep Nam Si Mong Khon - Huai Mae Kraban ### Hills and mountains 6 hills; 5 mountains. - Khao Takhaeng · 366 m - Khao Pom · 360 m - Khao Thalu · 327 m - Khao Pong Chang Phueak · 311 m - Khao Thon · 240 m - Khao Sam Phraya · 194 m - Khao Kloi · 165 m - Khao Chum Phu Fa Pha · 123 m - Khao Chong Pratu · 104 m - Khao Tha Phra · 90 m - Khao Noi · 80 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 Mongkhon and the best time to visit Using the climate of Sai Yok, the warmest month is Apr (average 27 °C) and the coolest is Dec (22 °C). About 1,270 mm of rain falls in a year; the wettest month is Sep (229 mm) and the driest Dec (7 mm). The most comfortable months for a visit are **November to April**. - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec Month Average °C Rain mm Jan 23 11 Feb 25 11 Mar 26 46 Apr 27 64 May 26 152 Jun 25 153 Jul 24 181 Aug 24 170 Sep 24 229 Oct 24 205 Nov 23 42 Dec 22 7 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Si Mongkhon Need Nearest mapped Distance Hospital โรงพยาบาลส่งเสริมสุขภาพตำบลบ้านทุ่งเรือโกลน · Si Mongkhon 5.9 km [Map](https://www.openstreetmap.org/?mlat=14.02183&mlon=99.18736#map=17/14.02183/99.18736) Bank ATM · Ban Kao 10.0 km [Map](https://www.openstreetmap.org/?mlat=13.92702&mlon=99.08332#map=17/13.92702/99.08332) ATM ซ.8เจ้าขุนเณร · Lat Ya 34 km [Map](https://www.openstreetmap.org/?mlat=14.11389&mlon=99.43148#map=17/14.11389/99.43148) Petrol pump ปั๊มบางจาก · Wang Dong 18 km [Map](https://www.openstreetmap.org/?mlat=14.08945&mlon=99.28023#map=17/14.08945/99.28023) Hotel ค่ายสมพล โตรักษา · Si Mongkhon 4.0 km [Map](https://www.openstreetmap.org/?mlat=14.03109&mlon=99.11845#map=17/14.03109/99.11845) Mall CJ Express สาขามณีกาญจน์ มหานครวังโพธิ์ · Lum Sum 13 km [Map](https://www.openstreetmap.org/?mlat=14.11858&mlon=99.14287#map=17/14.11858/99.14287) School Ban Huai Katha Tong School · Si Mongkhon 4.0 km [Map](https://www.openstreetmap.org/?mlat=14.03151&mlon=99.11976#map=17/14.03151/99.11976) College ศูนย์พัฒนาและฝึกอบรมวิมานดิน มหาวิทยาลัยมหิดล กาญจนบุรี · Lum Sum 13 km [Map](https://www.openstreetmap.org/?mlat=14.11797&mlon=99.15379#map=17/14.11797/99.15379) Police station Border Patrol Police · Ban Kao 10 km [Map](https://www.openstreetmap.org/?mlat=13.97475&mlon=99.04846#map=17/13.97475/99.04846) 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 Mongkhon Places mapped inside Si Mongkhon in open map data, by type. - Hospitals3 - Hotels5 - Schools5 - Restaurants2 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 Sai Yok - Bong Ti - Lum Sum - Sai Yok - Sing - Tha Sao - Wang Krachae ## Quick answers - Where is Si Mongkhon?In Sai Yok, Kanchanaburi Province, Thailand - What borders Si Mongkhon?Ban Kao, Bong Ti, Lum Sum and Sing - How many villages are in Si Mongkhon?31 named settlements (GeoNames, OpenStreetMap) - What is the elevation of Si Mongkhon?Settlements lie between 44 m and 155 m - How many reservoirs and tanks are in Si Mongkhon?2 named in GeoNames - What is the highest point in Si Mongkhon?Khao Takhaeng (366 m, GeoNames elevation model) - What is the best time to visit Si Mongkhon?November to April - Where is the nearest hospital to Si Mongkhon?โรงพยาบาลส่งเสริมสุขภาพตำบลบ้านทุ่งเรือโกลน, about 5.9 km from the centre - Where is the nearest bank to Si Mongkhon?ATM, about 10.0 km from the centre - Where is the nearest ATM to Si Mongkhon?ซ.8เจ้าขุนเณร, about 34 km from the centre - Where is the nearest petrol pump to Si Mongkhon?ปั๊มบางจาก, about 18 km from the centre - How many hospitals are in Si Mongkhon?3 mapped - What is the P-code of Si Mongkhon?TH710206 (OCHA common operational dataset)