Vietnam
Hoi An in May: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Hoi An in May is climatically well suited to beach holidays. The average daily high is around 31 °C, and the sea is about 28 °C. With about 14 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
60/100 · #7
Warmth
#4
Dryness
#6
Sun
#1
Sea warmth
#6
Published best categories: none
Hoi An · MayPhoto: Steffen Schmitz (more photos) · CC BY-SA 4.0Climate facts
- Average high
- 31 °C
- Average low
- 25 °C
- Sea
- 28 °C
- Rainy days (est.)
- 14 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 83 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| April | 30 | 23 | 7 | 59 | 7.1 | 84 | 1.8 | 25 | 78 |
| May (selected) | 31 | 25 | 14 | 94 | 7.8 | 83 | 1.6 | 28 | 60 |
| June | 32 | 26 | 13 | 95 | 7.7 | 80 | 1.4 | 29 | 58 |
How do the previous and next months compare?
Baseline: May (60/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| April | +18 | -1.1 °C | -1.9 °C | -6.8 | -34.7 mm | -0.7 h | +1.2 % | +0.2 m/s | -2.4 °C |
| June | -2 | +0.6 °C | +0.9 °C | -1.2 | +1.3 mm | -0.1 h | -2.5 % | -0.2 m/s | +1.6 °C |
All twelve months in context
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Where to stay in Hoi An
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Useful next decisions
Frequently asked questions
How warm is Hoi An in May?
The average daily high is around 31 °C, with an average daily low of about 25 °C.
Can you swim in Hoi An in May?
The sea is about 28 °C (very warm).
Does it rain a lot in Hoi An in May?
The curated estimate is about 14 rainy days per month, not a directly measured long-term average. Total precipitation averages around 94 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Hoi An?
By the climate score, January, February, March and April are the strongest months for Hoi An. For a beach trip: January, February, March and April. May is not among them.