2026 Climate Averages

Weather in Siem Reap in January

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

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Climate Overview

January is an excellent time to visit Siem Reap. Siem Reap has a Tropical climate with average yearly highs of 33°C, lows of 23°C, and approximately 0 rainy days per month.

Avg High

33°C

Avg Low

23°C

Rainy days

0days

Daylight

11.4h

Is January a good time to visit Siem Reap?

The weather is near-perfect with ideal temperatures and minimal rain.

Daylight

Sunrise

6:32 AM

Sunset

5:57 PM

Live January Forecast

LIVE

Forecast for your trip dates

Up to 16 days ahead
Weather by Month
Monthly weather data
Month High Low Rainy days Condition
January 33°C 23°C 0 Excellent (best)
February 34°C 23°C 0 Excellent (best)
March 35°C 26°C 8 Excellent (best)
April 34°C 26°C 17 Wet
May 35°C 27°C 19 Wet
June 32°C 26°C 25 Wet
July 32°C 25°C 26 Wet
August 32°C 25°C 26 Wet
September 31°C 25°C 28 Wet
October 29°C 23°C 25 Wet
November 30°C 23°C 6 Excellent (best)
December 30°C 22°C 3 Excellent (best)

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

What to Pack for January

Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.

Climate: Tropical
Travel Context Expect humidity and afternoon showers—plan flexible days.

Planning a trip to Siem Reap?

Common Questions

Is January a good time to visit Siem Reap? +

January is typically Excellent for visiting Siem Reap, with average highs of 33°C and around 0 rainy days.

What should I pack for Siem Reap in January? +

With highs of 33°C and lows of 23°C in {month}, we recommend: Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.

Does it rain a lot in Siem Reap in January? +

Siem Reap typically sees around 0 rainy days in January.

How many hours of daylight are there in Siem Reap in January? +

In January, Siem Reap gets approximately 11.4 hours of daylight per day.

Is January peak season in Siem Reap? +

Yes, January is peak season in Siem Reap. Expect higher prices and more crowds, but also the best weather.

What is the best month to visit Siem Reap? +

The best months to visit Siem Reap are November, December, January, February, March, when the weather is optimal for sightseeing.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Asia/Phnom_Penh)

Last Updated: January 2026

More Siem Reap Guides

Best Time to Visit

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Things to Do

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Itineraries

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Overview

Complete travel guide for Siem Reap: top things to do, itineraries, and typical costs.

Read Full Guide

January

33° / 23°
View Full Destination Guide