Ho Chi Minh City vs Siem Reap

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Siem Reap edges ahead as the better destination in September. Siem Reap offers 9 hours of daily sunshine with only 26 rain days, while Ho Chi Minh City sees 8 sunshine hours and 29 rain days.

Ho Chi Minh City can feel quite hot at 30°C, so plan for heat. Siem Reap runs hot at 30°C.

For travelers who prioritize dry weather, Siem Reap is the stronger choice in September. Siem Reap receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Ho Chi Minh City reaches an average high of 30°C (86°F) and drops to 24°C (75°F) at night during September. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Siem Reap averages 30°C (86°F) for the high and 25°C (77°F) for the low, with a daily range of 5°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Ho Chi Minh City receives approximately 306 mm of rainfall across 29 rain days during September. Rain is frequent, so waterproof gear is essential.

Siem Reap sees 257 mm over 26 rain days. That makes Siem Reap the drier option by 3 rain days and 49 mm of total precipitation.

Both cities share similar humidity levels at 82%.