Weather in Siem Reap in November

A good month. November is a solid month to be in Siem Reap. Highs average 31.7 °C, lows 22.3 °C, and rain falls on 8 days — nothing in the month is working against you.

November ranks 2 of 12 in Siem Reap. Only December scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 31.7 °C days and 22.3 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 24 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest November day reached 37.3 °C and the coldest night fell to 13.5 °C.

November is moderately variable: 1 mm in the driest year against 127 mm in the wettest, around an average of 37 mm. Roughly two Novembers in three land near that average, and the third does something else entirely.

Wind is light at 5.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How November sits in the year

Temperatures hold steady either side: 31 °C in October, 31.7 here, 32.5 in December. Nothing about the timing within the month matters much. Rain is the thing that moves: December brings 6 days less of it, so pushing the dates later buys drier weather.

Daylight in November

Siem Reap sits close enough to the equator that daylight barely moves all year — 11.5 hours in November, against a range of just 1.6 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 16.1 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

November in Siem Reap versus nearby

If Siem Reap is one option among several, the nearby comparison is worth making. Ubon Ratchathani is a better bet in November — within a degree on temperature, 4 days less rain. Nakhon Ratchasima is a better bet in November — 2.5 °C cooler, 3 days less rain.

So: November works, with December the better month by 7 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Siem Reap

See all twelve months in Siem Reap, or where else to go in November.