Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Siem Reap is from January, February, December. — consistent weather climate
⛈Hot & rainy
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| Score | 90 | 83 | 67 | 53 | 36 | 48 | 40 | 39 | 31 | 41 | 69 | 90 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Hot & dry | Hot & dry | Hot & dry | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & dry |
| Temperature | 22–31°C | 23–33°C | 25–34°C | 26–34°C | 26–33°C | 26–33°C | 25–32°C | 25–32°C | 24–31°C | 24–30°C | 23–31°C | 22–30°C |
| Feels like | 23–34°C | 25–36°C | 29–39°C | 30–40°C | 32–40°C | 31–39°C | 30–37°C | 30–37°C | 29–37°C | 28–37°C | 27–36°C | 24–33°C |
| Precipitation | 19mm 2 days | 25mm 3 days | 51mm 7 days | 107mm 10 days | 197mm 17 days | 155mm 16 days | 220mm 22 days | 214mm 21 days | 324mm 28 days | 256mm 23 days | 101mm 11 days | 25mm 4 days |
| Sunshine | 10.3h ☀︎ 90% | 10.7h ☀︎ 91% | 11.1h ☀︎ 92% | 10.8h ☀︎ 87% | 7.2h ☀︎ 57% | 6.3h ☀︎ 49% | 5.2h ☀︎ 40% | 5.3h ☀︎ 42% | 4.8h ☀︎ 39% | 6.4h ☀︎ 54% | 8.9h ☀︎ 77% | 9.9h ☀︎ 88% |
| Wind | NE · 13 km/h | E · 14 km/h | S · 13 km/h | S · 13 km/h | S · 13 km/h | SW · 15 km/h | SW · 16 km/h | SW · 15 km/h | SW · 12 km/h | NE · 11 km/h | NE · 12 km/h | NE · 13 km/h |
| Humidity (%) | 64% | 62% | 66% | 69% | 77% | 78% | 81% | 81% | 86% | 85% | 78% | 70% |
| Day length | 11.4h | 11.7h | 12.1h | 12.4h | 12.7h | 12.9h | 12.8h | 12.6h | 12.2h | 11.8h | 11.5h | 11.4h |
Runners from around the world race past the temples of Angkor in the cool, dry conditions of December, one of the most p…
This Khmer New Year celebration held within the Angkor Archaeological Park brings traditional games, folk performances,…
The dry, sun-lit winter is genuinely the only time Siem Reap feels welcoming rather than punishing, and waiting until December or January rewards you with pristine blue skies right as the ferocious November crowd surge begins to thin.
Almost no one comes to northwestern Cambodia purely for the provincial hub of Siem Reap itself, charming as its ochre French-colonial shopfronts, quiet river, and lantern-lit alleys around the Old Market may be. Travelers journey here to witness the immense stone universe left behind by the Khmer Empire. Exploring the Angkor Archaeological Park is not a passive museum experience; it demands miles of walking across open, exposed stone courtyards, climbing steep laterite staircases, and navigating humid forest paths. Because the temples act like giant stone ovens under direct sunlight, the atmosphere dictates everything about whether your days here feel like transcendent discoveries or exhausting physical endurance tests.
December and January represent the pinnacle of Siem Reap's calendar, offering weather so gentle it feels almost out of place in tropical Southeast Asia. The fierce tropical humidity recedes, leaving crisp mornings where you might actually want a light shawl during a pre-dawn tuk-tuk ride toward the temple gates. Rain is practically non-existent, the sky arches clear and cobalt, and the daytime air stays remarkably dry and manageable beneath the canopy.
This is the season when temple wandering becomes pure pleasure. You can linger for hours examining the intricate sandstone bas-reliefs of Angkor Wat or sitting quietly among the overgrown roots without drenched clothes and sun-induced vertigo. In December, runners gather from across the planet for the Angkor Wat International Half Marathon, gliding past centuries-old moats in the brisk dawn air. While December sees a steady stream of winter-holiday arrivals, January often feels noticeably calmer, offering the identical sparkling weather with just enough breathing room at the major monuments.
By February, the temperatures begin their inexorable climb upward, but the skies remain brilliantly sunny and rain showers stay rare. Evenings in the Old French Quarter come alive during these months, with street-side tables filling up under mild night breezes.
By March, the dry gentleness of winter vanishes, replaced by a brooding, heavy heat that builds week after week. The ancient sandstone slabs absorb the overhead glare all day and radiate it straight back at you. Walking the causeways between noon and mid-afternoon feels like walking into an open hearth, with apparent temperatures easily surging past forty degrees Celsius. Wise travelers wake at five in the morning, retreat to air conditioning or pool shade by eleven, and do not venture back out until the low sun casts long shadows.
April is arguably the most brutal month for raw heat, yet it holds a brief, joyous counterweight in Angkor Sangkranta. Held inside the Angkor Archaeological Park for Khmer New Year, this massive gathering fills the ancient temple plazas with traditional games, music, and multi-generational Cambodian families celebrating together. It completely reframes Angkor from an ancient open-air museum into a living, festive communal ground, though surviving it requires serious hydration and patience with the oppressive midday air.
May brings the breaking of the drought. The heat remains intense, but the atmosphere turns thick with moisture as the first violent thunderstorms begin to roll across the rice fields, clearing the air for an hour before returning the city to a steamy simmer.
From June through October, the southwest monsoon reigns over northwestern Cambodia, reaching its sopping climax in September and October. This is not a time of gentle gray mists; the heavens open in dramatic, deafening cloudbursts that turn dirt tracks into reddish mud and overwhelm city gutters in minutes. September sees the heaviest rainfall of the entire year, when afternoon plans are frequently wiped out by torrential downpours that strand tuk-tuks beneath tin awnings.
Yet the monsoon holds a strange, undeniable beauty for those willing to pack rain ponchos and navigate slick stone steps. The parched brown countryside explodes into an electric green, the moats around the temples fill to their stone brims, and bright green moss blankets the smiling carved stone faces of the ruins. The air feels heavy, warm, and constantly damp, like a permanent steam room.
This season also dramatically transforms Tonlé Sap, Southeast Asia's largest freshwater lake just south of the city. Swollen by monsoon rains and the reverse flow of the Mekong, the lake expands dramatically, flooding mangrove forests and lifting stilted and floating fishing villages meters higher into the treetops. Visiting during these saturated months reveals an entirely different ecosystem than the dusty winter period, provided you do not mind shoes that never quite dry out.
November marks the official shift into peak travel season, and the town absorbs a massive influx of international visitors. Travel brochures universally proclaim November as the ideal time to arrive, and tour buses promptly clog the access avenues leading into the temple complexes. Every major viewpoint fills shoulder-to-shoulder well before sunrise.
The paradox of November is that while crowds reach their annual zenith, the weather is actually inferior to the crisp months that immediately follow it. The tail end of the wet season often lingers into the first half of the month, bringing humid afternoons and sudden showers that catch unprepared sightseers in exposed stone corridors.
If you must visit in November, balance your temple schedule by escaping into the quiet countryside or spending unhurried late afternoons exploring the craft markets and stalls around the Old Market. Otherwise, holding out for a few weeks until December or January yields substantially cleaner skies, cooler breezes, and a far more comfortable exploration.
Top sights and attractions to build your days around once you know when to go.
Angkor Wat is a Vaishnava Hindu and Theravada Buddhist temple complex in Siem Reap, Cambodia, and the largest religious complex in the world. Located on a site measuring 162.6 hectares within the ancient capital of Angkor, it was constructed between 1113 and 1150 CE during the reign of the Khmer king Suryavarman II as a Hindu temple dedicated to Vishnu. From the late 13th century onward, the complex was gradually transformed into a Buddhist temple and has remained an active center of Buddhist worship for centuries. Angkor Wat is noted for its monumental scale, extensive bas-reliefs, and an architectural unity characteristic of Khmer architecture. Unlike most Angkorian temples, it is oriented toward the west. It is a symbol of Cambodia and appears on the Cambodian national flag.
Angkor, also known as Yasodharapura, was the capital city of the Khmer Empire, located in present-day Cambodia. The empire flourished from approximately the 9th to the 15th centuries. The site of Angkor has a variety of religious temples, libraries, moats, and other buildings. These other buildings could have been used by officials to the grand palace housing the Khmer king. Those constructed outside the main complex were not made of stone. One of the more visited places in Angkor is Angkor Wat, a temple complex that is one of Cambodia's tourist attractions.
Angkor Thom, alternatively Nokor Thom, located in present-day Cambodia, was the last and most enduring capital city of the Khmer Empire. It was established in the late twelfth century by King Jayavarman VII. It covers an area of 9 km², within which are located several monuments from earlier eras as well as those established by Jayavarman and his successors. At the centre of the city is Jayavarman's state temple, the Bayon, with the other major sites clustered around the Victory Square immediately to the north. The site is one of the major tourist attractions of Southeast Asia.
The Bayon is a richly decorated Theravada Buddhist temple of the Khmer Empire located at Angkor in Cambodia. Built in the late 12th or early 13th century as the state temple of King Jayavarman VII, it stands at the centre of Jayavarman’s capital city, Angkor Thom . The Bayon reflects the strong Buddhist orientation of Jayavarman VII’s reign. Originally conceived as a Mahayana Buddhist monument centered on the cult of the Bodhisattva of compassion, the temple later adapted to the spread of Theravada Buddhism in Cambodia. Its iconography, spatial organization, and emphasis on compassion and kingship illustrate the close relationship between Buddhism and royal authority at Angkor, while its continued use as a Buddhist sanctuary demonstrates the enduring influence of Buddhism in the region.
The Baphuon is a Buddhist temple at Angkor, Cambodia. It is located in Angkor Thom, northwest of the Bayon. Also called "golden mountain" (svarnādrī), the Baphuon is built on an artificial hill. The temple was originally dedicated to Shiva and late converted to a Theravada Buddhist temple. The dating of the temple has been fractious; recent work has shown that it was not built during the reign of Udayādityavarman II, as is popularly reported. In 2015 a French team directly dates four iron crampons integrated into the structure using the AMS Carbon-14 method, revealed the construction was much earlier than thought and can now be considered as the major temple associated with Suryavarman I (1010–1050CE), a ruler which had no temple previously associated with his reign.
Ta Prohm is the modern name of a temple near the city of Siem Reap, Cambodia, approximately one kilometre east of Angkor Thom and on the southern edge of the East Baray. It was built in the Bayon style largely in the late 12th century and early 13th century and was originally called Rajavihara. It was founded by the Khmer King Jayavarman VII as a Mahayana Buddhist monastery and center of learning dedicated to his mother. Almost 80,000 people were required to maintain or attend at the temple, including over 2,700 officials and 615 dancers.
Banteay Kdei, also known as "Citadel of Monks' cells", is a Buddhist temple in Angkor, Cambodia. It is located southeast of Ta Prohm and east of Angkor Thom. Built in the mid-12th to early 13th centuries AD during the reign of Jayavarman VII, it is in the Bayon architectural style, similar in plan to Ta Prohm and Preah Khan, but less complex and smaller. Its structures are contained within two successive enclosure walls, and consist of two concentric galleries from which emerge towers, preceded to the east by a cloister.
Preah Khan is a Buddhist temple at Angkor, Cambodia, built in the 12th century for King Jayavarman VII to honor his father. It is located northeast of Angkor Thom and just west of the Jayatataka baray, with which it was associated. It was the centre of a substantial organisation, with almost 100,000 officials and servants. The temple is flat in design, with a basic plan of successive rectangular galleries around a Buddhist sanctuary complicated by Hindu satellite temples and numerous later additions. Like the nearby Ta Prohm, Preah Khan has been left largely unrestored, with numerous trees and other vegetation growing among the ruins.
Baksei Chamkrong is a small hindu temple located in the Angkor complex. It is dedicated to Shiva and used to hold a golden image of him. The temple can be seen on the left side when entering Angkor Thom at the southern gate. It was dedicated to Yasovarman by his son, King Harshavarman I. The temple was completed by Rajendravarman II (944–968).
Ta Keo is a temple-mountain in Angkor (Cambodia), possibly the first to be built entirely of sandstone by the Khmer Empire.
Chau Say Tevoda is a Angkor Thom gate of the dead terrace of the animals temple at Angkor, Cambodia. It is just east of Angkor Thom, directly south of Thommanon across the Victory Way. Built in the mid-12th century, it is a Hindu temple in the Angkor Wat period. It is dedicated to Shiva and Vishnu with unique types of female sculptures of devatas enshrined in it. The Buddha images have been interpreted to have been built during the reign of Dharanindravarman, father of Jayavarman VII, who ruled from Preah Khan of Kompong. The temple was in a dilapidated state with 4,000 of its elements lying scattered on the embankment and in the Siem Reap River. Many of these elements were used in the restoration work carried out by a Chinese team between 2000 and 2009 under a project sponsored by the People's Republic of China. The temple was reopened in late 2009.
Thommanon is one of a pair of Hindu temples built during the reign of Suryavarman II (1113–1150) at Angkor, Cambodia. This small and elegant temple is east of the Gate of Victory of Angkor Thom and north of Chau Say Tevoda. It is part of the UNESCO World Heritage Site, inscribed by UNESCO in 1992 titled Angkor. The temple is dedicated to Shiva and Vishnu.
Places from Wikidata and Wikipedia.
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