Subdistrict · Sai Noi
# Khun Si

Khun Si is a subdistrict (tambon) of Thailand in Sai Noi, Nonthaburi Province. It covers 24.6 km². 8 named villages and localities are recorded here, and 16 mapped services such as hospitals, banks and schools.
- 24.6 km²
- 16 mapped services
- 5 m typical elevation

## Where is Khun Si?

Khun Si lies in Sai Noi, Nonthaburi Province, Thailand. It borders 7 other subdistricts: Bang Phasi, Khlong Khwang, Nara Phirom, Rat Niyom, Sai Noi, Sai Yai and Thawi Watthana. By area it is the 5515th largest of 7,425 subdistricts in Thailand. It covers 12.3% of Sai Noi. The centre of Khun Si is about 37 km in a straight line from Bangkok, the capital. It is about 4.5 km from Sai Noi, the main town of Sai Noi. The centre point is at 14.0043° N, 100.2789° E. Local names: ขุนศรี.

Source: Royal Thai Survey Department via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO).

## Things to see in and around Khun Si

### Nearby, outside Khun Si
- วัดไทรใหญ่ · attraction, Sai Noi 4.5 km
- วัดเวฬุวนาราม · attraction, Lam Phaya 6.7 km
- Rattiya City · attraction, Khlong Nok Krathung 8.8 km
- DUBUA CAFE - ดูบัว คาเฟ่ ฟาร์ม · attraction, Bang Kaeo Fa 13 km
- Fathers of Three Armed Forces Memorial · monument, Bang Rakam 13 km
- สเต็กลุงเชิด ใกล้ วัดมะเกลือ · attraction, Nong Phrao Ngai 13 km
- Red Lotus Floating Market · attraction, Bang Len 13 km
- ตลาดระแหง · attraction, Rahaeng 16 km
- Woodland Museum & Resort · museum, Don Faek 18 km
- Windchill Ltd.'s Factory · castle or fort, Lahan 18 km

Source: © OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements.

Named attractions, museums, viewpoints, historic sites and natural features mapped in OpenStreetMap. Places of worship are not listed.

## Know before you go: Khun Si
- Time zone UTC+7, no daylight saving · Asia/Bangkok
- Currency Baht (THB)
- Country calling code +66
- Languages Thai, English
- Plug types Type A, B, C, F · 220 V
- Driving side Left
- Postcode format 5 digits (#####)

### Nearest airports
- Don Mueang International Airport (DMK) · Bangkok 37 km
- Suvarnabhumi Airport (BKK) · Bangkok 62 km

### Nearest railway station

Khlong Maha Sawat (Mahasawat), about 22 km from the centre.

### Daylight

Days are longest in Jun (about 12.9 hours, sunrise around 05:50) and shortest in Dec (about 11.3 hours, sunrise around 06:34, sunset around 17:53).

Source: GeoNames country and time-zone files (CC BY 4.0); Wikidata (CC0) — plug types, mains voltage, driving side; retrieved 2026-11-03; OurAirports (public domain).

Airports with scheduled passenger flights; straight-line distances. Daylight is calculated for the 15th of each month in local standard time. Check entry and visa rules with official government sources before travelling.

## Villages and localities in Khun Si

Open gazetteers list 8 villages, towns and localities in Khun Si. Settlements here lie between about 3 m and 9 m above sea level (median 5 m).
- Ban Khlong Khun Si
- Ban Khlong Lat Si Nuan
- Ban Khlong Phra Phimon Racha
- Ban Khlong Sip Sok
- Ban Khlong To Nui
- Ban Pak Khlong Chao
- Ban Wat Samoson
- Ban Wat Yot Phra Phimon

Source: GeoNames (CC BY 4.0) — settlements, natural and historic features; © OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements.

## Weather in Khun Si and the best time to visit

Using the climate of Sai Noi, the warmest month is Apr (average 31 °C) and the coolest is Dec (25 °C). About 1,195 mm of rain falls in a year; the wettest month is Sep (235 mm) and the driest Dec (9 mm). The most comfortable months for a visit are November to January.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
| Month | Average °C | Rain mm |
| Jan | 26 | 15 |
| Feb | 29 | 11 |
| Mar | 30 | 45 |
| Apr | 31 | 65 |
| May | 30 | 148 |
| Jun | 29 | 134 |
| Jul | 28 | 138 |
| Aug | 28 | 138 |
| Sep | 27 | 235 |
| Oct | 27 | 212 |
| Nov | 26 | 46 |
| Dec | 25 | 9 |

Source: NASA POWER climatology, retrieved 2026-10-29.

## Nearest hospital, bank and fuel from Khun Si
| Need | Nearest mapped | Distance | |
| Hospital | โรงพยาบาลส่งเสริมสุขภาพตำบลวัดยอดพระพิมล · Khun Si | 0.4 km | Map |
| Bank | ธนาคารออมสิน สาขาไทรน้อย · Khlong Khwang | 4.5 km | Map |
| ATM | ตู้ Atm Cdm Pum ทีเอ็มบีธนชาต สาขาบางเลน · Bang Len | 12 km | Map |
| Petrol pump | ปั๊มก๊าซไทรน้อย · Khun Si | 2.3 km | Map |
| Hotel | เดอะเบสท์ ไทรน้อย · Khlong Khwang | 3.9 km | Map |
| Mall | ตลาดน้ำทุ่งบัวแดง ณ บางเลน · Khlong Khwang | 4.3 km | Map |
| School | โรงเรียนวัดยอดพระพิมล · Khun Si | 0.7 km | Map |
| College | โรงเรียนบ้านคลองพระพิมล · Khun Si | 2.5 km | Map |
| Police station | ศูนย์ปฏิบัติการสืบสวน สภ.ไทรน้อย · Sai Noi | 5.3 km | Map |

Source: Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL).

Straight-line distance from the centre of the division, within 40 km.

## Hospitals, banks and other services in Khun Si

Places mapped inside Khun Si in open map data, by type.
- Hospitals 3
- Petrol pumps 1
- Schools 4
- Colleges and universities 1
- Pharmacies 1
- Restaurants 6

Source: Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL).

Coverage depends on what has been mapped; contact details are not shown.

## Other subdistricts in Sai Noi
- Khlong Khwang
- Nong Phrao Ngai
- Rat Niyom
- Sai Noi
- Sai Yai
- Thawi Watthana

## Quick answers
- Where is Khun Si? In Sai Noi, Nonthaburi Province, Thailand
- What borders Khun Si? Bang Phasi, Khlong Khwang, Nara Phirom, Rat Niyom, Sai Noi, Sai Yai and Thawi Watthana
- What is there to see in Khun Si? วัดไทรใหญ่, วัดเวฬุวนาราม, Rattiya City, DUBUA CAFE - ดูบัว คาเฟ่ ฟาร์ม
- What time zone is Khun Si in? UTC+7
- What currency is used in Khun Si? Baht (THB)
- What language is spoken in Khun Si? Thai, English (main languages nationally)
- How many villages are in Khun Si? 8 named settlements (GeoNames, OpenStreetMap)
- What is the elevation of Khun Si? Settlements lie between 3 m and 9 m
- What is the best time to visit Khun Si? November to January
- Where is the nearest hospital to Khun Si? โรงพยาบาลส่งเสริมสุขภาพตำบลวัดยอดพระพิมล, about 0.4 km from the centre
- Where is the nearest bank to Khun Si? ธนาคารออมสิน สาขาไทรน้อย, about 4.5 km from the centre
- Where is the nearest ATM to Khun Si? ตู้ Atm Cdm Pum ทีเอ็มบีธนชาต สาขาบางเลน, about 12 km from the centre
- Where is the nearest petrol pump to Khun Si? ปั๊มก๊าซไทรน้อย, about 2.3 km from the centre
- How many hospitals are in Khun Si? 3 mapped
- How many petrol pumps are in Khun Si? 1 mapped
- What is the P-code of Khun Si? TH120505 (OCHA common operational dataset)

At a glance
- Type: Subdistrict
- Area: 24.6 km²
- P-code: TH120505
- District: Sai Noi

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Canonical: https://wherepedia.org/thailand/nonthaburi/sai-noi/khun-si/ · Updated 2026-11-03 · Data: national censuses and statistics offices (sources named in each section); © OpenStreetMap contributors (ODbL); Overture Maps; GeoNames; NASA POWER.