Preah Ko Archaeological Site

Early Khmer temple complex with stone carved deities

Preah Ko, in the Roluos group east of Siem Reap, dates to the late 9th century; its brick towers and dedicatory inscriptions mark early Khmer state formation.

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Preah Ko at a Glance#

Address: Roluos Group (Preah Ko), near Bakong, Siem Reap Province, Cambodia (within Angkor Archaeological Park)

Website: https://www.angkor.com

Hours: Daily 5:00am-6:00pm (Angkor Park hours)

Admission: Included with Angkor Archaeological Park pass (1‑day US$37, 3‑day US$62, 7‑day US$72)

About Preah Ko#

Preah Ko is an 9th-century Khmer temple in the Roluos group, east of Siem Reap, Cambodia. It was consecrated in 879 AD and is one of the earliest major temple complexes of the Angkor period.

The complex contains six brick towers set on a raised sandstone platform and arranged in two rows. The towers retain carved sandstone lintels and pediments with Hindu iconography that are the main visual highlights for visitors. The site is compact - most visitors complete a visit in 30-60 minutes - and is often paired with nearby Roluos group temples.

Construction was initiated by King Indravarman I; the monument was dedicated to members of the royal family and to Hindu deities. Over the centuries the brick towers suffered weathering and partial collapse and have undergone multiple conservation efforts to stabilise masonry and preserve carvings.

The temple sits in the village area of Roluos, roughly 13 km east of Siem Reap town, on flat agricultural land near other early Angkor temples. Access is by road from Siem Reap and it is typically visited as part of a short circuit of the Roluos group.

  • Best time: Early morning light and fewer visitors make details on the lintels and pediments easier to photograph.
  • How to combine: Commonly visited together with Bakong and Lolei - all three form the Roluos group about 13 km east of Siem Reap.

How to Get to Preah Ko#

Preah Ko is part of the Roluos group east of Siem Reap and lies about 12-15 km from Siem Reap town centre. It’s usually reached by tuk‑tuk or car (about 30-45 minutes depending on traffic) along the main road east out of Siem Reap; many visitors also cycle there (a longer ride).

There is a short on‑site walk from the roadside/parking area to the temple; most tourist transport providers in Siem Reap include a stop at the Roluos group.

Tips for Visiting Preah Ko#

  • Visit Preah Ko and Bakong together in the same morning-both are part of the Roluos group and are within a short drive of each other, so combining them avoids returning later when central Angkor crowds build.
  • Go early for the best light on Preah Ko's brick towers and fewer tour groups; the site is compact and quiet, which makes it easier to study the carved faces and inscriptions that many visitors miss in a cursory walk-through.

Best Time to Visit Preah Ko#

Visit in the dry season (Nov-Feb) and go early in the day to avoid heat and the largest tour groups.

Dry season
Nov-Feb · 20-30°C
Most comfortable time to explore the ruins with lower humidity and pleasant mornings-sunrise visits are quieter.
Hot season
Mar-May · 28-38°C
Intense heat and stronger sun make mid-day visits uncomfortable; plan early starts and shade breaks.
Wet season
May-Oct · 24-32°C
Heavy rains can limit time on-site and make ground conditions muddy, though there are far fewer visitors.

Weather & Climate near Preah Ko#

Climate

Preah Ko's climate is classified as Tropical Savanna - Tropical Savanna climate with very hot summers (peaking in April) and warm winters (coldest in December). Temperatures range from 19°C to 35°C. Abundant rainfall (1345 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 76 Moderate
Best Time to Visit
FebruaryJanuaryDecember
Temperature & Rainfall
Temperature Range
43°
Warmest Month
13°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 19° - 31° 25° 1 mm some cloud 57% 1.3 m/s 1.7 very high 11.3h
February Ideal 21° - 33° 28° 7 mm mostly sunny 53% 1.5 m/s 1.8 very high 11.6h
March Excellent 24° - 35° 31° 24 mm partly cloudy 57% 1.7 m/s 2.0 very high 11.9h
April Very Good 25° - 35° 34° 59 mm partly cloudy 65% 1.6 m/s 2.2 extreme 12.3h
May Acceptable 25° - 34° 35° 142 mm overcast 75% 1.5 m/s 2.2 extreme 12.6h
June Acceptable 25° - 33° 34° 172 mm overcast 82% 1.7 m/s 2.1 extreme 12.8h
July Acceptable 24° - 32° 33° 190 mm overcast 85% 1.7 m/s 2.1 extreme 12.7h
August Acceptable 24° - 32° 33° 191 mm overcast 86% 1.6 m/s 2.1 extreme 12.4h
September Acceptable 24° - 31° 32° 271 mm overcast 87% 1.1 m/s 2.0 very high 12.1h
October Very Good 24° - 31° 30° 198 mm partly cloudy 84% 1.1 m/s 1.8 very high 11.7h
November Excellent 22° - 31° 26° 78 mm partly cloudy 78% 1.4 m/s 1.7 very high 11.4h
December Ideal 20° - 30° 25° 12 mm some cloud 65% 1.6 m/s 1.7 very high 11.2h

Nearby Attractions to Preah Ko#