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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Pulse Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Siem Reap has a tropical monsoon climate, so the live forecast above will typically show warm temperatures year-round. Plan your visit around the dry season (November to April) for the most comfortable conditions, with lower humidity and minimal rainfall.
What is the typical weather pattern in Siem Reap?
The year splits into two distinct seasons. The dry season runs from November to April, bringing blue skies, low humidity and very little rain – siem reap weather november marks the beginning of this pleasant period. The wet season (May to October) sees afternoon downpours, but mornings are often clear. Daytime highs hover around 30–35°C regardless of season, with nights a few degrees cooler. For a detailed breakdown of siem reap weather by month, expect the hottest conditions in April and the coolest in December–January.
How reliable are longer-range forecasts for Siem Reap?
Short-term predictions – siem reap weather forecast 7 days and weather in siem reap 10 days – are generally reliable for temperature trends. Beyond that, the tropics make siem reap weather 14 days and especially siem reap weather forecast 30 days less precise; monsoon timing can shift by days. For tomorrow’s plans, weather in siem rap tomorrow shown in the live forecast is your best bet. While a dedicated siem reap weather radar isn’t common, satellite imagery used by Australian services offers a helpful overview.
When is the best time to visit Siem Reap?
November to February offers the most comfortable weather – sunny days, low humidity and cool evenings. March and April are hotter but still dry; the wet season (May–October) is cheaper but you can expect afternoon rain.
Does it rain every day in the wet season?
Usually, yes, but the rain often arrives as a short, heavy shower in the late afternoon. Mornings are frequently clear, so sightseeing is still very possible if you plan around the downpours.
How accurate are 7-day forecasts for Siem Reap?
The siem reap weather forecast 7 days provided above is reliable for temperature and general trends. Rainfall timing can be localised, so check the live forecast each morning for updates.
Sources
For Australian weather comparisons, visit our Australia weather hub or check Sydney Weather.