The best time to visit Cambodia

The best time is the dry season, roughly November to April, and for most travellers November to February is the sweet spot: daytime temperatures around 28–32°C, low humidity, clear skies and cool mornings ideal for the long days of temple-walking at Angkor, plus calm seas for the southern islands. December and January are the most comfortable — and the busiest and most expensive, peaking over Christmas and New Year. If you want the dry weather with fewer people, aim for late November or early December (before the festive rush) or mid-to-late March (hot but thinning out). The hot season (March–May) is dry but fierce, with April the month to avoid at 37–40°C. The green/rainy season (June–October) is much cheaper and quieter, with short afternoon rains, lush scenery and the best Angkor reflections, but September can flood. So: November–February for the best weather, the shoulders for value, and the green season for green landscapes and low prices if you don't mind the rain.

For weather, November to February is best — cool, dry mornings make the huge Angkor complex far more pleasant to explore, and the clear skies give the cleanest sunrise silhouette of Angkor Wat's towers. But the time of day matters as much as the season: aim to be at Angkor Wat's western moat by around 5:15am for sunrise (to claim a spot by the reflecting pools), explore the major temples in the cool early morning, retreat from the midday heat and crowds, and return for the beautiful late-afternoon light. There's also a lovely seasonal trade-off in the photos: the dry season gives the clearest silhouette against the sky, while the green season (roughly July–October) fills the moats and reflecting pools, giving the best mirror-image reflections of the year — so photographers sometimes deliberately choose the rainy months. Either way, a multi-day Angkor pass lets you spread the temples across cool mornings and avoid burning out in the heat.

April is the month most travellers should be wariest of. It's Cambodia's hottest, with daytime highs of 37–40°C and building humidity, and by midday the big temple climbs (like Angkor Wat's upper Bakan tower) become a real physical challenge — even locals slow right down, and Khmer New Year in mid-April makes some areas busy while others empty as people return to their home provinces. It's still dry and sunny, and the low-season prices and thinner crowds can be tempting, but if your trip involves long days on your feet at the temples, the heat is punishing. If you do go in April (or the hot months of March–May generally), front-load the major sights into the early morning, be at Angkor for the 5:15am sunrise, take a long midday break by a pool or in the shade, and return for late-afternoon light — and hydrate constantly. Otherwise, shift your dates to the cooler November–February window.

Yes, for the right traveller — the green season is genuinely underrated. The monsoon here is kinder than its reputation: the rain usually falls as short, dramatic afternoon cloudbursts of an hour or two, with clear mornings, rather than all-day downpours. In return you get an electric-green landscape, dramatically thinner crowds, the lowest prices of the year, and Angkor at its most atmospheric — quiet corridors, moody skies, and the moats and reflecting pools filled by the rains for the best mirror-image reflections you'll ever get of Angkor Wat. The jungle temples like Ta Prohm look their most evocative with mist rising off the stone. The trade-offs: September is the wettest month, when rural roads can flood and some inter-province travel stalls, and the southern beaches and islands see rough seas and ferry cancellations from roughly June to October. So the green season is excellent for a temple-and-value trip built around the main sites — just keep the islands for the dry season and build in flexibility.

For the southern coast and islands — Sihanoukville, Koh Rong, Koh Ta Kiev — the best time is the dry season, roughly November to May, when the seas are calm, the skies are sunny and the ferries run reliably. This is when the beaches look their postcard best and boat trips and snorkelling are at their most enjoyable. Conversely, the green/rainy season (about June to October) brings rougher seas, more frequent rain and ferry cancellations, so the islands are the one part of Cambodia you shouldn't save for the wet months. The neat thing is that the beach season overlaps the temple season in the cooler November–February window, so a combined Angkor-and-islands trip works beautifully then — and even into the hot months of March–April the seas stay calm (you'll just want the water to cool off from the heat). If you're building a trip around the coast, aim for November–April.

The cheapest and quietest time by a clear margin is the green/rainy season, roughly June to October, when hotel rates drop, the tour buses thin out, and you can have Angkor's corridors almost to yourself — in exchange for short afternoon rains and, in September, some flooding. Within the dry season, the hot months of March to May (especially April) are also notably quieter and cheaper than the peak, because the heat deters crowds — good value if you can handle 35–40°C. The most expensive and crowded window is December to January, around Christmas and New Year, when Siem Reap fills up. For a middle ground — good weather but fewer people and lower prices than the December peak — target the shoulder edges: late November, or October as the rains ease. So: June–October for the lowest prices and emptiest temples, March–May for hot-but-quiet value, and the shoulder months for a balance.

Cambodia's timing has real trade-offs — the cool but crowded November–February peak, the fierce April heat, the cheap-but-green rainy season with its bonus Angkor reflections, and the fact that the time of day matters as much as the month at the temples. That's exactly what an AI planner is for. HipiMind is a voice-first AI travel assistant: tell it what you want — 'a week in Cambodia in December, Angkor and the islands' or 'Siem Reap on a budget in the green season' — and it turns the conversation into a day-by-day itinerary with every temple and stop on a map, timed to the season. It can weigh the trade-offs out loud (when the weather is best, when it's cheapest, how to plan around the midday heat, when the reflection pools fill, which months to avoid for the islands), flag the month-by-month conditions, and adjust the plan as you talk. It can also generate long-form audio guides — the history of the Khmer Empire, the story of Angkor and its temples, Cambodian culture. It plans and narrates but does not book flights, hotels, tours or temple passes, so make those reservations yourself — early, for the November–February peak.