Sa Pa Weather in September
September in Sa Pa typically sees daytime highs of 28°C (82°F) and nighttime lows of 21°C (70°F). September falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Sa Pa in September
Sa Pa is in the rainy season in September, with rain on around 18 days and an average of 216 mm (8.5 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Sa Pa in September
Expect highs of 28°C (82°F) in Sa Pa in September, with nights dropping to around 21°C (70°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.
Sunshine in Sa Pa in September
You can expect a moderate amount of sunlight, with approximately 101 hours. Even though this month is part of the wet season, you can still see the sun occasionally.Our weather planner can help you find worldwide destinations with pleasant weather during this period. November typically offers the best weather for Sa Pa.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Sa Pa's climate page.
Sa Pa Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
28°C (82°F)
Chance of Rain
60%
Precipitation
216 mm (8.5 in)
Rainy days
18 days
Humidity
87%
Sunshine
101 hours
Percentage Sunshine
27%
Daily Historical Temperatures
33-year average (1993-2025)
Based on our historical records, temperatures in Sa Pa typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows typically ranging from 20°C (68°F) to 22°C (72°F).
Average temperatures in September
Daily Historical Precipitation
33-year average (1993-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Sa Pa in September
Browse day-by-day weather records for Sa Pa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Best Places in Vietnam in September
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Sa Pa in September
Warm but pleasant conditions in Sa Pa in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Sa Pa in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Sa Pa's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sa Pa climate overview or explore weather in Vietnam.
