Vietnam Hoi An Weather in August (Pre-Monsoon Storms Begin) — Climate Guide
August (Pre-Monsoon Storms Begin) in Hoi An is moderate
Hoi An Weather in August (Pre-Monsoon Storms Begin) — Quick Answer
As of 2026- Avg temp
- 33° / 25°
- Rainfall
- 130mm · 11 days
- Crowds
- Busy
As of 2026, Hoi An in August (Pre-Monsoon Storms Begin) averages a high of 33°C and low of 25°C with 130mm of rain over about 11 days. Hot + humid + thunderstorm afternoons — t-shirt + light raincoat + waterproof bag.
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.
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
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
Air Quality
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)
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
Seasonal Weather Overview
Spring (Mar·Apr·May)
30°C
23°C
4.3/mo
Summer (Jun·Jul·Aug)
Current33.7°C
25.3°C
8.7/mo
Autumn (Sep·Oct·Nov)
28.3°C
22.3°C
13.3/mo
Winter (Dec·Jan·Feb)
25.3°C
19.7°C
7.7/mo
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 | |
| March (Peak Dry Season) (Best) | 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
Planning a August (Pre-Monsoon Storms Begin) trip to Hoi An?
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Why you can trust weather guide
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.