Do I need warm clothes for Nuwara Eliya?

Yes, you really need warm clothes for Nuwara Eliya, because the temperatures can dip to around 10°C (50°F) at night. The high altitude gives you that cool, misty kind of atmosphere, and it clashes sharply with the rest of tropical Sri Lanka.

Bring a fleece jacket, plus a windbreaker, long trousers, and closed-toe shoes; it’s essential for evening outings and for early morning jaunts like Horton Plains. Layering helps a lot, even if during the day the weather can feel pleasantly mild when the sun is out.