Hoi An in May: Weather & climate information
- In May, Hoi An experiences hot and relatively dry weather, with minimal temperature variation between day and night.
- Cloudy days are uncommon, although rainfall gradually increases compared to April.
- This month also marks the beginning of the diving season at Cham Island.
Are you considering a trip to Hoi An in May? You'll find the weather perfect for exploring the charming Old Town or enjoying the beach. Daytime temperatures typically range from 26°C to 33°C with moderate humidity. Nights cool down to around 24°C. It's an ideal time to experience Hoi An's picturesque scenery and vibrant atmosphere.

May Averages
In May, Hoi An experiences warm temperatures averaging between 24.9°C and 31.3°C. Expect around 16 rainy days with high humidity at 80.4%, but enjoy 12.6 hours of sunshine daily!| Min Temperature | 24.9°C | Precipitation | 85.9mm |
| Max Temperature | 31.3°C | Rainy Days | 16.5 days |
| Humidity | 80.4% | Sunshine Hours | 12.6 hours |
Historical weather
May weather averages for Hoi An in the last 14 years ( 2010 to 2024).
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 22.13°33.01° | 2 21.45°36.2° | |||||
3 22.86°38.05° | 4 22.03°37.95° | 5 21.26°37.63° | 6 23.51°36.03° | 7 23.53°33.42° | 8 22.44°37.04° | 9 23.32°36.21° |
10 23.16°35.29° | 11 23.64°33.22° | 12 23.0°39.51° | 13 23.85°39.74° | 14 23.51°40.02° | 15 24.24°39.98° | 16 24.27°39.36° |
17 23.83°38.7° | 18 24.19°35.56° | 19 23.5°38.7° | 20 23.58°38.37° | 21 24.0°39.14° | 22 24.17°40.18° | 23 24.22°37.62° |
24 24.01°37.83° | 25 23.75°29.09° | 26 23.72°27.03° | 27 25.36°33.09° | 28 23.82°33.36° | 29 23.5°35.14° | 30 24.97°36.69° |
31 24.23°40.86° |
Temperature Graph (°C)
The average Hoi An temperature during May is around 28.8°C (83.84°F).
| Month | High | Low | Changes |
| April | 28.9°C (84.02°F) | 23.0°C (73.4°F) | +2.4°C (36.32°F) |
| May* | 31.3°C (88.34°F) | 24.9°C (76.82°F) | +2.2°C (35.96°F) |
| June | 31.7°C (89.06°F) | 25.2°C (77.36°F) | +0.4°C (32.72°F) |
Humidity Graph (%)
The average humidity in May in Hoi An is 80.4%, which is 3.9% lower than April and 1.9% higher than June.
Rainfall Graph (mm)
Average rainfall in May in Hoi An: 85.9mm
| April | May* | June |
| 85.2mm (+0.7mm) | 85.9mm | 67.2mm (+18.7mm) |
Rain Days Graph
Average rain days in May in Hoi An: 16.5 days
Daylight Graph
Average daylight in May in Hoi An: 12.9h
