Lào Cai (Sa Pa)
September
Weather in Lào Cai for September 2025
Your guide to Lào Cai weather in September - trends and predictions
In general, the average temperature in Lào Cai at the beginning of September is 26.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 23.9 °C by the end of September.
Lào Cai experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit Lào Cai? check out the best time to travel to Lào Cai page.
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2
Dry days
28
Rainy days
0
Snow days
25°/17°
Temperatures
4 km/h
Avg max wind
88 %
Avg humidity
Lào Cai in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 26° | 3  26° | 4 26° | 5 27° | 6 28° | 7 26° |
| 8  24° | 9 24° | 10 24° | 11 23° | 12 22° | 13 25° | 14 26° |
| 15 25° | 16 25° | 17 25° | 18 24° | 19  26° | 20 25° | 21 25° |
| 22 25° | 23 24° | 24 25° | 25 24° | 26 23° | 27 22° | 28 24° |
| 29 25° | 30 24° |
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Temperatures trend during September in Lào Cai
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy light rain with thunder | 26° /19° | 6.2 mm | 6 | |
| 2 Sept. | Patchy light rain with thunder | 26° /19° | 8.8 mm | 6 | |
| 3 Sept. | Light rain shower | 26° /18° | 9.3 mm | 6 | |
| 4 Sept. | Patchy light rain with thunder | 26° /18° | 13.4 mm | 6 | |
| 5 Sept. | Patchy rain possible | 27° /20° | 8.1 mm | 6 | |
| 6 Sept. | Patchy rain possible | 28° /22° | 3.2 mm | 6 | |
| 7 Sept. | Light rain shower | 26° /17° | 18.1 mm | 6 | |
| 8 Sept. | Moderate rain | 24° /16° | 91.7 mm | 5 | |
| 9 Sept. | Light rain shower | 24° /16° | 54.7 mm | 5 | |
| 10 Sept. | Light rain shower | 24° /16° | 58.9 mm | 5 | |
| 11 Sept. | Light rain shower | 23° /16° | 8 mm | 5 | |
| 12 Sept. | Light rain shower | 22° /16° | 2.7 mm | 5 | |
| 13 Sept. | Light rain shower | 25° /16° | 8.2 mm | 6 | |
| 14 Sept. | Light rain shower | 26° /16° | 10.7 mm | 6 | |
| 15 Sept. | Patchy light rain with thunder | 25° /16° | 14.2 mm | 6 | |
| 16 Sept. | Light rain shower | 25° /18° | 15.2 mm | 6 | |
| 17 Sept. | Light rain shower | 25° /18° | 7.9 mm | 6 | |
| 18 Sept. | Light rain shower | 24° /16° | 10.4 mm | 5 | |
| 19 Sept. | Patchy light drizzle | 26° /19° | 4.2 mm | 6 | |
| 20 Sept. | Light rain shower | 25° /20° | 5.4 mm | 6 | |
| 21 Sept. | Light rain shower | 25° /18° | 6.2 mm | 6 | |
| 22 Sept. | Light rain shower | 25° /16° | 13.1 mm | 6 | |
| 23 Sept. | Patchy rain possible | 24° /18° | 0 mm | 5 | |
| 24 Sept. | Light rain shower | 25° /18° | 3.8 mm | 6 | |
| 25 Sept. | Patchy rain possible | 24° /16° | 1.8 mm | 5 | |
| 26 Sept. | Patchy rain possible | 23° /14° | 2.2 mm | 5 | |
| 27 Sept. | Light rain shower | 22° /15° | 11 mm | 5 | |
| 28 Sept. | Light rain shower | 24° /16° | 15.5 mm | 6 | |
| 29 Sept. | Light rain shower | 25° /17° | 7.7 mm | 6 | |
| 30 Sept. | Light rain shower | 24° /17° | 18.6 mm | 6 | |
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Important Notice
Our weather forecast for Lào Cai in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lào Cai forecast closer to your planned date for the most up-to-date weather information.
Lào Cai in September - FAQ
What are the expected maximum and minimum temperatures in Lào Cai during September?
During September, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lào Cai during September?
Significant rainfall exceeding 441.9 mm is expected in Lào Cai during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Lào Cai during September?
The average wind speed in Lào Cai during September is 4 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Lào Cai in September?
As you prepare for your trip to Lào Cai in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Lào Cai, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Lào Cai
Explore the daily rainfall trends and prepare for Lào Cais September weather 💧
UV exposure in Lào Cai during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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