Is Sapa worth visiting in September?

Sapa is definitely worth visiting in September. Over the month, the weather is generally mild and pleasant, making it a great time for trekking and exploring the beautiful landscapes. Early September usually coincides with the middle of the rice harvest season, when the terraced rice fields turn a vibrant golden yellow, offering stunning views and excellent photography opportunities. The fields are characterised by golden-yellow hues as the rice plants ripen, creating a stunning contrast against the green mountainous landscape. The terraced fields, which are a hallmark of Sapa's agriculture, are particularly picturesque, with their layered patterns cascading down the hillsides.
Expect overnight storms and occasional mist in the mornings, adding to the ethereal beauty of the landscape. Hmong and Dao farmers can often be seen working in the fields, harvesting the rice, which adds a lively, cultural aspect to the scenery.
You can experience the local culture and traditions of the ethnic minority groups living in the area. While it may be slightly rainy, the lush scenery and fewer tourists compared to the peak season can enhance your experience. Just be sure to pack appropriately for the weather, including rain gear.
This month marks the transition from the rainy season to the drier season, so while you can still expect some rainfall, it tends to be less when compared to the summer months.
Overall, September is a great time for trekking and exploring the natural beauty of Sapa, though it's wise to be prepared for every weather eventuality.