It's warm in the daytime, if you are healthy you can even just wear a T-shirt; however it's quite chill in the morning and night. I recon to bring a thick jacket.
It's very foggy in Sapa, and the temperature gap is kinda wide, I think it may relate to its geographical condition.
Foggy and rainy. Not the best time to visit because the rice paddies aren't planted and the weather can spoil the views. If I went again I would go June to September, however we still enjoyed it and you can't always choose your times.
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