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Hoi An Weather in August (Pre-Monsoon Storms Begin) — Climate Guide

August (Pre-Monsoon Storms Begin) in Hoi An is moderate

Avg High
33°C
Avg Low
25°C
Rainy Days
11
Sunshine
7h

August (Pre-Monsoon Storms Begin) is moderate for Hoi An.

Pre-monsoon transition. Mornings sunny, afternoons increasingly stormy. Crowds drop slightly mid-late month as Asian summer vacations end.

Crowds: Busy Prices: Shoulder Sea temp: 29°C
6 /10

Travel score

Transition month — summer ends + monsoon begins

August (Pre-Monsoon Storms Begin) Weather at a Glance

August is the transition from peak summer to monsoon. 33/25°C with humidity climbing to 80%. UV slightly down to 10. 130mm rain across 11 days = afternoon thunderstorms become daily. Sea remains at 29°C through August. After Aug 15, Korean families return home, leading to a measurable crowd drop.

August (Pre-Monsoon Storms Begin) Travel Advice

Best windows: Aug 16-31 (post-Korean summer break) offers good weather + 30% lower hotel rates. Late afternoon thunderstorms (1-3 hours, 14:00-17:00) become predictable — plan beach + outdoor for mornings. Cham Islands tours start being canceled by late August due to rough seas.

Flying In from Overseas

Korean families flying home Aug 15+. Japanese still active (school holidays through August). Western travelers minimal. DAD flights $400-700 mid-August onward.

August (Pre-Monsoon Storms Begin) Pricing Trends

Anantara Hoi An $300-500/night (post-Aug 15), boutique $120-250/night, hostels $12-35/night.

Hoi An August (Pre-Monsoon Storms Begin) Weather Stats

Avg High

33°C

-10°
40°
Temperature range

Avg Low

25°C

Rainy Days

11

130mm total

Sunshine

7h

Daily avg

Humidity

80%

high

UV Index

10

Very high

Wind

9 km/h

Gusts 25

Sea Temp

29°C

swimming

Crowds

Busy

At attractions

August (Pre-Monsoon Storms Begin) Sunrise & Sunset

Sunrise
05:35
Day length
12h 45min
Sunset
18:20
00:0006:0012:0018:0024:00

Air Quality

42
AQI
Good
GoodModeratePoorVery poor

PM2.5

15 μg/m³

PM10

25 μg/m³

Status

good

Feels-Like Temperature & Wind

Feels like

Daytime

37°C

/

Nighttime

26°C

Humidity and wind affect how the actual temperature feels.

Wind

9 km/h

Max gust 25 km/h

Activities Recommended for August (Pre-Monsoon Storms Begin)

Morning An Bang Beach + Old Town Cham Islands (early August only) Tailor + cooking class (indoor afternoons) Evening Lantern walks (despite drizzle)

August (Pre-Monsoon Storms Begin) Travel Pros & Cons

Pros

  • Crowd drop after Aug 15 — better value
  • Sea still warm at 29°C
  • Hoi An lantern magic continues despite rain

Cons

  • 130mm rain across 11 days — daily afternoon storms
  • 80% humidity oppressive
  • Cham Islands tours start canceling late month

August (Pre-Monsoon Storms Begin) Events & Festivals

  • Korean summer holidays end (Aug 15)
  • Pre-monsoon thunderstorms begin
  • Vietnamese late-summer travel

Hoi An in August (Pre-Monsoon Storms Begin) — Full Picture

Pre-monsoon transition. Mornings sunny, afternoons increasingly stormy. Crowds drop slightly mid-late month as Asian summer vacations end.

What to Wear & What to Pack

Hot + humid + thunderstorm afternoons — t-shirt + light raincoat + waterproof bag.

Packing Checklist

T-shirts + shorts + swimsuit
Sunscreen SPF 50
Light raincoat + waterproof bag
Compact umbrella
Quick-dry shoes

Seasonal Weather Overview

Spring (Mar·Apr·May)

Avg High

30°C

Avg Low

23°C

Rainy days

4.3/mo

Very busy Peak

Summer (Jun·Jul·Aug)

Current
Avg High

33.7°C

Avg Low

25.3°C

Rainy days

8.7/mo

Very busy Peak

Autumn (Sep·Oct·Nov)

Avg High

28.3°C

Avg Low

22.3°C

Rainy days

13.3/mo

Quiet Low season

Winter (Dec·Jan·Feb)

Avg High

25.3°C

Avg Low

19.7°C

Rainy days

7.7/mo

Moderate Shoulder

Hoi An Monthly Weather Comparison

Month High Low Rain Sun Humid UV Crowd Price
25° 19° 8d·100mm 5h 82% 6 Moderate Shoulder
26° 20° 4d·30mm 6h 80% 7 Busy Peak
28° 21° 4d·25mm 7h 80% 8 Busy Peak
30° 23° 4d·30mm 8h 80% 10 Very busy Peak
32° 25° 5d·50mm 8h 80% 11 Very busy Peak
34° 26° 7d·80mm 8h 78% 11 Very busy Peak
34° 25° 8d·90mm 8h 78% 11 Very busy Peak
33° 25° 11d·130mm 7h 80% 10 Busy Shoulder
31° 24° 12d·250mm 6h 82% 8 Quiet Low season
28° 22° 15d·530mm 5h 85% 6 Quiet Low season
26° 21° 13d·360mm 5h 84% 6 Quiet Low season
25° 20° 11d·220mm 5h 82% 5 Moderate Shoulder

View Other Months

Hoi An August (Pre-Monsoon Storms Begin) Hotel Picks

Frequently Asked Questions

Is August (Pre-Monsoon Storms Begin) a good time to visit Hoi An?

Hoi An in August (Pre-Monsoon Storms Begin) is moderate. Tourist crowds are busy and flight/hotel prices are shoulder.

What's the average temperature in Hoi An in August (Pre-Monsoon Storms Begin)?

Hoi An August (Pre-Monsoon Storms Begin) averages a high of 33°C and a low of 25°C.

Does it rain much in Hoi An in August (Pre-Monsoon Storms Begin)?

Hoi An August (Pre-Monsoon Storms Begin) averages 130mm of rainfall over about 11 rainy days.

What should I wear in Hoi An in August (Pre-Monsoon Storms Begin)?

Hot + humid + thunderstorm afternoons — t-shirt + light raincoat + waterproof bag.

What time are sunrise and sunset in Hoi An in August (Pre-Monsoon Storms Begin)?

Hoi An August (Pre-Monsoon Storms Begin) sunrise is 05:35 and sunset is 18:20, with 12h 45min of daylight.

What's the air quality like in Hoi An in August (Pre-Monsoon Storms Begin)?

Hoi An August (Pre-Monsoon Storms Begin) air quality (AQI) averages 42, rated Good. PM2.5 averages 15μg/m³.

What activities are recommended in Hoi An in August (Pre-Monsoon Storms Begin)?

In August (Pre-Monsoon Storms Begin), Hoi An is great for Morning An Bang Beach + Old Town, Cham Islands (early August only), Tailor + cooking class (indoor afternoons).

Is August (Pre-Monsoon Storms Begin) peak season in Hoi An?

Hoi An August (Pre-Monsoon Storms Begin) crowds are busy and prices are shoulder. Advance reservations are strongly recommended.

Best Months to Visit Hoi An

View Other Months

Why you can trust weather guide

Jimmy Kong TripPick founder · Travel content creator

Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.

8+ years analyzing travel data 30+ countries visited Live exchange rate verified
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