2026 Climate Averages

Weather: Siem Reap — October

It's a rainy period, but great for indoor activities, museums, and lower prices.

☔ Climate Overview

October is a wet time to visit Siem Reap. Hot conditions with temperatures reaching 31°C—stay hydrated and seek shade. This is one of the wettest months—waterproof gear is essential. Being off-peak, you'll find better deals and fewer crowds.

6.5
GoTripzi Score Good

Based on weather comfort, crowds, prices, and activity options

Avg High

31°C

Avg Low

25°C

Rainy days

24days

Daylight

11.8h

Feels like 37°C / 30°C — humidity makes it feel warmer

Rainfall

271mm

Sunshine

8h/day

Humidity

83%

Very Muggy
Sun Strength

6.1

High
Wind

11 km/h (gusts 24)

Is October a good time to visit Siem Reap?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Now

--

Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Quiet
  • Travel Costs Shoulder Rates

Daylight

Sunrise

05:56

Sunset

17:47

11.8h daylight

Visiting Siem Reap in October: Pros & Cons

Pros

  • Fewer crowds and better hotel deals

Cons

  • Frequent rain may disrupt outdoor activities
  • High humidity makes the heat feel oppressive

Things to Do in October

Events & Festivals

🕊️
Pchum Ben (Ancestors' Day)
Late September–early October (15 days) Religious

Recommended for This Weather

🌅 Early morning sightseeing (before the heat)
🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Siem Reap Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 31°C 22°C 1d (15mm) 10.2h
70% Muggy
7.6 Very High
Excellent
Feb 32°C 24°C 3d (21mm) 10.6h
68% Muggy
8.4 Very High
Excellent
Mar 34°C 26°C 6d (32mm) 11h
69% Muggy
8.9 Very High
Excellent
Apr 35°C 27°C 9d (74mm) 11h
70% Muggy
9 Very High
Good
May 34°C 27°C 18d (136mm) 10.5h
75% Muggy
8.1 Very High
Wet
Jun 34°C 27°C 21d (119mm) 9.9h
76% Muggy
7.8 Very High
Wet
Jul 32°C 27°C 26d (189mm) 8.6h
80% Very Muggy
6.9 High
Wet
Aug 33°C 27°C 23d (154mm) 9.5h
79% Muggy
7.5 Very High
Wet
Sep 31°C 26°C 28d (275mm) 7.5h
84% Very Muggy
6 High
Wet
Oct Current 31°C 25°C 24d (271mm) 8h
83% Very Muggy
6.1 High
Wet
Nov 31°C 24°C 14d (105mm) 9.4h
79% Muggy
6.6 High
Excellent
Dec 30°C 23°C 4d (20mm) 9.8h
73% Muggy
6.8 High
Excellent

⚖️Find Your Ideal Month

Adjust the sliders to weight what matters most to you.

5
3
3
Your Best MonthOctScore: 8
1.Oct
82.May
7.63.Jun
7.64.Jul
7.65.Aug
7.66.Sep
7.27.Apr
6.58.Jan
5.69.Feb
5.610.Dec
5.611.Nov
5.212.Mar
4.7

Where to Stay

See hotels, apartments & rentals around Siem Reap – live prices from Booking.com, Expedia, Vrbo and more

Open map in new tab

Siem Reap

Gateway to Angkor's jungle-wrapped temples and sunrise silhouettes over ancient towers. Discover Angkor Wat sunrise.

View Full Destination Guide

What to Pack for October

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Tropical Quiet

🎒Personalized Packing List

Tell us about your trip and we'll create a custom packing list based on the weather.

Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Siem Reap?

💰 Off-peak — great deals available now

Frequently Asked Questions

Is October a good time to visit Siem Reap?
October is typically wet for visiting Siem Reap, with average highs of 31°C and around 24 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Siem Reap in October?
Nights stay pleasantly warm in Siem Reap during October, around 25°C. Light evening wear is sufficient, and outdoor dining is very comfortable. Many locals and visitors enjoy late-night walks and outdoor activities after sunset.
What should I pack for Siem Reap in October?
With highs of 31°C and lows of 25°C in October, we recommend: Compact umbrella, Waterproof jacket/shell, Water-resistant shoes, Lightweight breathable clothes. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Siem Reap in October?
Siem Reap typically sees around 24 rainy days in October. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
How many hours of daylight are there in Siem Reap in October?
In October, Siem Reap gets approximately 11.8 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is October peak season in Siem Reap?
No, October is not peak season in Siem Reap. Expect better value on accommodation, shorter queues at attractions, and fewer tourists at popular spots. This is an excellent time to experience the city like a local and enjoy a more authentic atmosphere.

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

Solar calculations: SunCalc (timezone: Asia/Phnom_Penh)

Last Updated: February 2026

More Siem Reap Guides

Best Time to Visit

Coming soon

Things to Do

Coming soon

Where to Stay

Best neighborhoods and hotel recommendations

Find Hotels →

Cost & Budget

Daily costs, money-saving tips, and budget breakdown

Read Guide →

Itineraries

Coming soon

Overview

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

Read Full Guide →