The month in detail
What to expect in September
Autumn marks the end of peak season in Sa Pa. Temperatures drop (22°C) and rain returns (58% of days). With 58% of rainy days, always have indoor alternatives planned.
September ranks 4 out of 12 months in Sa Pa. Compared to August: 12 pts fewer rainy days.
This month's conditions
What it's like in September
UV index
6 · high
sunscreen and hat advised
Feels like
muggy at times
17°
Daylight
12.1h of daylight
Air quality
good
AQI 32
Compare
Is September the right month?
The best month in Sa Pa is April (7.5/10), 3.0 pts higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Sa Pa
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Sa Pa
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.
Country · Vietnam
🗣️LanguageVietnamese
💶CurrencyVietnamese Dong (₫)
🚗DrivingRight-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘVery cheap · 1/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthMay · 23°C
❄️Coolest monthJanuary · 14°C
🌧️Rainiest month ⓘJuly · 73%
🏖️ Beach holiday
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Sa Pa ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
VietnamTemperate oceanic climate with a 7.5 → 4.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
22.34°N · 103.84°E
Questions
Frequently asked questions
What is the best time to visit Sa Pa?
April is the best month with 22.0°C highs, 15.0°C lows, 5.6h of sunshine and 34.0% rainy days. The months of April & March offer comparable conditions.
How many hours of sunshine does Sa Pa get in April?
Sa Pa averages 5.6 sunshine hours per day in April. It is the sunniest month with a climate score of 7.2/10.
What is the rainiest month in Sa Pa?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Sa Pa in April?
In April, overnight lows reach 15.0°C, while afternoon highs average 22.0°C.
Is Sa Pa good in winter?
In winter (December-February), Sa Pa scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains April with a score of 7.2/10.
When should you avoid Sa Pa?
January is the most difficult month to visit Sa Pa, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Sa Pa in September?
The average UV index reaches 6 in September in Sa Pa (high), with about 12.1h of daylight. Sunscreen and hat advised.