Planning for the weather is a good way to make your trip to Nuwara Eliya relaxing and enjoyable, especially when you're splurging. The hottest months are usually April and March, with an average temperature of 20°C, while the coldest months are January and February, with an average of 18°C. The rainiest months in Nuwara Eliya are October, November, May and April, with each month seeing an average of 440 mm of rainfall.