Siem Reap Weather in August -The rain isn’t your problem—timing is!

August 8, 2025
6:27 am

Siem Reap in August? Don’t Pack a Thing Until You Read This First

Siem Reap Weather in August is warm, humid, and very green—think early clear mornings and short, heavy afternoon showers. If you plan your day around the rain window (roughly 2–5 PM), you’ll do Angkor Wat at sunrise, rest mid-day, and return for sunset. Siem Reap Weather in August also means better hotel value, fewer crowds, and richer colors at the temples. Book morning-heavy tours, keep flexible afternoons, and pack light rain gear.

You’ll love the photos.

Overview

Siem Reap Weather in August is ideal if you’re willing to plan smart: warm mornings for temples, short afternoon downpours, and lush green landscapes. This guide explains exact conditions (temperatures, rain timing, humidity), what to pack, and how to structure each day so rain never wins.

You’ll get a practical day-by-day plan, three tour picks that actually work in August, and simple gear tips. Expect high humidity, a predictable rain window, and beautiful skies for sunrise and sunset—classic monsoon season in a tropical savanna climate.

We’ll cover sunrise and sunset August patterns, the chance of wet days August, temple conditions August, and how to reduce flooding risk August with route choices. If you like green season travel and rice fields August views, August might be your best month.

What is Siem Reap Weather in August like, and how do you plan around it?

Siem Reap Weather in August means warm mornings, brief afternoon rain, and dramatic skies. You’ll see the phrase Siem Reap Weather in August everywhere because it’s predictable: start early, finish big, rest mid-day. Mornings are usually dry and clear enough for temples; rain often arrives for a short burst mid- to late-afternoon.

Expect an average high temperature August around 31–32°C (about 88–90°F).
Plan for an average low temperature August near 24–25°C (about 75–77°F).
Count on noticeable humidity in August; lightweight, breathable clothing helps.
Prepare for rainy days in August (often 15–20), but most showers are short.
Anticipate thick cloud cover August, which softens harsh light—great for photos.

Metric	What to Expect	Why It Matters	Planning Tip
Temperature	High ~31–32°C \| Low ~24–25°C	Warm but manageable	Do major walking before 10 AM
Rain	Short, heavy showers most afternoons	Predictable monsoon rhythm	Block 2–5 PM for indoor/covered plans
Humidity	High all day	Energy drains faster	Electrolytes + quick-dry clothes
Cloud Cover	Frequent	Soft, even light	Great for temple photography
Wind	Low to moderate	Comfort during rain	Carry a compact umbrella

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The Morning Rule: Beat the rain and the heat

Why it works: Mornings during Siem Reap Weather in August are calmer, drier, and cooler.
What to do: Start by 4:30–5:00 AM for sunrise; wrap outdoor walking by noon.
Pro tip: Keep a light breakfast and 1L of water handy; humidity increases thirst quickly.
Snapshot: daylight hours August support long mornings; sunrise sunset August timing is perfect for photos.

The Afternoon Window: Expect the burst, then the calm

Pattern: Short, heavy showers 2–5 PM, often clearing before sunset.
What to do: Nap, spa, museum, coffee; then head out if skies open.
Good news: After the rain, air cools, colors pop, and crowds thin.

Pack Smart: Keep it light, quick-dry, and waterproof where it counts

Clothing: Quick-dry shirts/shorts, breathable pants for temples.
Footwear: Waterproof walking shoes; temple stones can be slick.
Essentials: Compact umbrella, packable jacket, zip bags for phone/camera.
Comfort: Electrolyte tablets, insect repellent, microfiber towel.

Item	Why in August	Use Case	Skip/Replace
Packable rain jacket	Short showers, quick cover	Afternoon bursts	Bulky ponchos
Waterproof shoes	Wet stones & paths	Temple walking	Flip-flops
Electrolytes	High humidity fatigue	Mid-morning, post-rain	Sugary sports drinks
Dry bag/zip pouches	Sudden rain risk	Protect tech	Loose pockets

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What “Green Season” really means for you

Green perks: lush greenery August, rice fields August at their best, fewer tourists.
Photo value: Cloud texture = richer sunrise/sunset tones.
Budget win: Better room rates and more guide availability.

Understand the climate terms—so you plan like a local

You’ll hear: monsoon season, tropical savanna climate, precipitation August.
Simple read: Warm mornings, predictable rain bursts, humid days.
Why it matters: Your day structure—not the rain—decides how smooth your trip feels.

Key weather facts that matter to daily plans

August rainfall: Expect several short storms during the month.
Chance of wet days August: Plan flexible blocks in your afternoons.
Average wind speed August: Light breezes; storms pass quickly.
Cloud cover August: Great for portraits and temple detail shots.

Time	Weather Likelihood	Best Use	Backup Plan
4:30–9:00 AM	Coolest, driest	Angkor sunrise + main temples	Early breakfast + short indoor break
9:00–12:00 PM	Warming up, still good	Secondary temples / countryside	Café stop, museum detour
12:00–2:00 PM	Hotter, humidity high	Lunch + rest	Spa or pool
2:00–5:00 PM	Most likely rain	Indoor activities	Cooking class / massage
5:00–7:00 PM	Often clears	Sunset attempt	Night market after shower

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Siem Reap Weather in August — why timing beats everything else

Use the morning: This is where trips are made.
Hold the afternoon lightly: Weather apps help, but your guide helps more.
Return at golden hour: Post-rain sunsets can be spectacular.

Three August-proof tours that just work (and how to schedule them)

Day 1 — “Perfect for the your first day of tours”:
Private Beng Mealea Temple + Floating Village
Link: https://journeycambodia.com/tour/private-beng-mealea-temple-siem-reap-with-floating-village-tour/
Plan: Start 5:00–5:30 AM for temple coolness. Hit floating village late morning when lake activity peaks. Rest during the rain window.
Day 2 — “Perfect for the your second day of tours”:
Sunset in Angkor Wat
Link: https://journeycambodia.com/tour/sunset-in-angkor-wat/
Plan: Keep morning light with a smaller temple; rest mid-day; watch weather and go for Phnom Bakheng or reflective moats near Angkor as clouds break.
Day 3 — “Perfect for the your third day of tours”:
Siem Reap Countryside Tour
Link: https://journeycambodia.com/tour/siem-reap-countryside-tour/
Plan: Morning rice fields and stilted villages for the best light. Afternoon: cooking class or handicrafts if rain arrives.

Safety and comfort in August—simple, practical, proven

Hydration: Water + electrolytes = more energy, fewer headaches.
Skin: Reapply sunscreen—clouds don’t block UV well.
Feet: Change socks after rain; wet feet = blisters.
Bugs: Repellent at dawn/dusk; cover ankles in grassy spots.

Temple access and conditions—manage expectations, enjoy more

Temple conditions August: Some stones are slick; go slow.
Boardwalks: Use rails at Angkor, Ta Prohm, Preah Khan.
After a storm: Puddles form; photos get better; crowds thin.

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Siem Reap Weather in August brings clear, calm mornings and brief afternoon rain. Do sunrise tours, keep afternoons flexible, and carry a light waterproof layer. It’s easier than you think.