# Sai Mun Subdistrict, Ongkharak, Nakhon Nayok Province

> Source: https://wherepedia.org/thailand/nakhon-nayok/ongkharak/sai-mun/

Subdistrict · Ongkharak 

# Sai Mun

Sai Mun is a subdistrict (tambon) of Thailand in Ongkharak, Nakhon Nayok Province. It covers **50.9 km²**. 10 named villages and localities are recorded here, and 14 mapped services such as hospitals, banks and schools.

- 50.9km²
- 14mapped services
- 6 mtypical elevation

## Where is Sai Mun?

Sai Mun lies in [Ongkharak](https://wherepedia.org/thailand/nakhon-nayok/ongkharak/), [Nakhon Nayok Province](https://wherepedia.org/thailand/nakhon-nayok/), [Thailand](https://wherepedia.org/thailand/). It borders 7 other subdistricts: [Bang Luk Suea](https://wherepedia.org/thailand/nakhon-nayok/ongkharak/bang-luk-suea/), [Bang O](https://wherepedia.org/thailand/nakhon-nayok/ban-na/bang-o/), [Bang Pla Kot](https://wherepedia.org/thailand/nakhon-nayok/ongkharak/bang-pla-kot/), [Don Yo](https://wherepedia.org/thailand/nakhon-nayok/mueang-nakhon-nayok/don-yo/), [Khlong Yai](https://wherepedia.org/thailand/nakhon-nayok/ongkharak/khlong-yai/), [Ongkharak](https://wherepedia.org/thailand/nakhon-nayok/ongkharak/ongkharak/) and [Thong Lang](https://wherepedia.org/thailand/nakhon-nayok/ban-na/thong-lang/). By area it is the 3317th largest of 7,425 subdistricts in Thailand. It covers 9.7% of [Ongkharak](https://wherepedia.org/thailand/nakhon-nayok/ongkharak/). The centre of Sai Mun is about 70 km in a straight line from Bangkok, the capital. It is about 2.6 km from Ongkharak, the main town of Ongkharak. The centre point is at 14.1363° N, 101.0193° E. Local names: ทรายมูล .

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 Sai Mun

Open gazetteers list **10 villages, towns and localities** in Sai Mun. Settlements here lie between about 2 m and 21 m above sea level (median 6 m).

- Ban Bang I Phon
- Ban Bang Khayo
- Ban Bang Ko
- Ban Bang Nang Lek
- Ban Bang O
- Ban Bang Yai (1)
- Ban Khlong Nueng
- Ban Khlong Om
- Ban Khlong San Chao
- Ban Khlong Yi Sip Kao

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 Sai Mun and the best time to visit

Using the climate of Ongkharak, the warmest month is Apr (average 30 °C) and the coolest is Dec (24 °C). About 1,546 mm of rain falls in a year; the wettest month is Sep (318 mm) and the driest Dec (7 mm). The most comfortable months for a visit are **November to February**.

- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec

Month Average °C Rain mm 

Jan 25 15 

Feb 28 16 

Mar 30 52 

Apr 30 88 

May 29 176 

Jun 28 195 

Jul 27 220 

Aug 27 245 

Sep 27 318 

Oct 26 185 

Nov 25 30 

Dec 24 7 

Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/).

## Nearest hospital, bank and fuel from Sai Mun

Need Nearest mapped Distance 

Hospital ห้องคลอดโรงพยาบาลองครักษ์ · Ongkharak 1.7 km [Map](https://www.openstreetmap.org/?mlat=14.12567&mlon=101.00744#map=17/14.12567/101.00744) 

Bank ธนาคารออมสิน · Ongkharak 2.6 km [Map](https://www.openstreetmap.org/?mlat=14.11982&mlon=101.00233#map=17/14.11982/101.00233) 

ATM Atm กรุงไทย · Tha Chang 21 km [Map](https://www.openstreetmap.org/?mlat=14.21218&mlon=101.20176#map=17/14.21218/101.20176) 

Petrol pump PT · Ongkharak 2.5 km [Map](https://www.openstreetmap.org/?mlat=14.11753&mlon=101.00577#map=17/14.11753/101.00577) 

Hotel บังกะโล ณิก ณิก ทาวน์ 2 · Sai Mun 2.2 km [Map](https://www.openstreetmap.org/?mlat=14.12829&mlon=101.00107#map=17/14.12829/101.00107) 

Mall เซเว่นตลาดองครักษ์ · Ongkharak 2.7 km [Map](https://www.openstreetmap.org/?mlat=14.12041&mlon=101.00063#map=17/14.12041/101.00063) 

School Ongkharak School · Ongkharak 1.9 km [Map](https://www.openstreetmap.org/?mlat=14.12112&mlon=101.01163#map=17/14.12112/101.01163) 

College Srinakharinwirot University Ongkharak · Ongkharak 4.7 km [Map](https://www.openstreetmap.org/?mlat=14.10809&mlon=100.98696#map=17/14.10809/100.98696) 

Police station Ongkharak Police Station · Ongkharak 2.3 km [Map](https://www.openstreetmap.org/?mlat=14.12244&mlon=101.00392#map=17/14.12244/101.00392) 

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 Sai Mun

Places mapped inside Sai Mun in open map data, by type.

- Hospitals3
- Petrol pumps2
- Hotels1
- Schools1
- Colleges and universities1
- Restaurants6

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 Ongkharak

- Bang Luk Suea
- Bang Pla Kot
- Bang Sombun
- Bueng San
- Chumphon
- Khlong Yai
- Ongkharak
- Pho Thaen
- Phra Achan
- Sisa Krabue

## Quick answers

- Where is Sai Mun?In Ongkharak, Nakhon Nayok Province, Thailand
- What borders Sai Mun?Bang Luk Suea, Bang O, Bang Pla Kot, Don Yo, Khlong Yai, Ongkharak and Thong Lang
- How many villages are in Sai Mun?10 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Sai Mun?Settlements lie between 2 m and 21 m
- What is the best time to visit Sai Mun?November to February
- Where is the nearest hospital to Sai Mun?ห้องคลอดโรงพยาบาลองครักษ์, about 1.7 km from the centre
- Where is the nearest bank to Sai Mun?ธนาคารออมสิน, about 2.6 km from the centre
- Where is the nearest ATM to Sai Mun?Atm กรุงไทย, about 21 km from the centre
- Where is the nearest petrol pump to Sai Mun?PT, about 2.5 km from the centre
- How many hospitals are in Sai Mun?3 mapped
- How many petrol pumps are in Sai Mun?2 mapped
- What is the P-code of Sai Mun?TH260406 (OCHA common operational dataset)