Verdict: Tough month
Hoi An Weather in August
August is seriously hot in Hoi An — days average 34°C (93°F), so plan mornings out and afternoons in the shade or the water. It's also the wet side of the calendar: rain falls on about 18 days, so build flexibility into plans. If your dates are flexible, most travelers will have a better time in Hoi An outside August.
Average high
34°C / 93°F
Average low
27°C / 81°F
Rain days
~18
Precipitation
120 mm
What to pack for Hoi An in August
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 18 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
August against the rest of the year
Warmest in Hoi An: Jun (35°C / 95°F) · Coolest: Jan (24°C / 75°F) · Wettest: Oct (~28 rain days)
24°
20°
Jan
25°
20°
Feb
28°
22°
Mar
30°
24°
Apr
32°
26°
May
35°
27°
Jun
33°
26°
Jul
34°
27°
Aug
31°
25°
Sep
28°
24°
Oct
27°
23°
Nov
24°
21°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)