Home › Weather › Sri Lanka Weather By Month
Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australian Insight Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Sri Lanka’s tropical climate, shaped by two monsoon seasons, means the best months to visit the west and south coasts are December to March, while the east coast shines from April to September. The live forecast above shows current conditions, but for planning a holiday, knowing the monthly breakdown is key.
What’s the weather like in Sri Lanka month by month?
In Colombo and the south-west (including Galle and Kandy), the main dry season runs from December to March, with blue skies and low humidity. Daytime temperatures hover around 30°C, making this the peak travel window. From April to July, the south-west monsoon brings afternoon rain and higher humidity. Meanwhile, the east coast (Trincomalee, Arugam Bay) enjoys its best weather from April to September, with calm seas and sunshine. The inter-monsoon periods (October–November) bring short, sharp downpours across the island, but also lush landscapes and fewer crowds—ideal for travellers on a budget. For a detailed Australia weather hub comparison, note that Sri Lanka’s humidity stays above 70% year-round, especially in coastal areas.
What should I pack for a trip to Sri Lanka?
Lightweight, breathable clothing is essential, plus a rain jacket for the monsoon months. If you’re visiting the hill country (Nuwara Eliya), pack a jumper—temperatures can drop to 10°C at night. Sunscreen and insect repellent are non-negotiable. For school-holiday timing, the April break aligns with the Sinhalese New Year, but the east coast is still dry. Winter escapes (June–August) suit the east coast best, while December school holidays are perfect for the south.
What is the worst time to visit Sri Lanka?
The worst time to visit Sri Lanka is during the south-west monsoon from May to July if you’re staying on the west coast, as heavy rain and rough seas limit beach activities. The east coast is fine then.
How reliable is a 10-day weather forecast for Sri Lanka?
A 10-day forecast is moderately reliable for general trends, but Sri Lanka’s microclimates mean localised showers can appear quickly. Check the live forecast above for the latest updates before heading out.
What is the humidity like in Sri Lanka by month?
Humidity in Sri Lanka stays high year-round, typically 70–85%. It peaks during the monsoon months (May–July and October–November) and drops slightly in the dry season (January–February), especially in hill stations like Kandy.