Weather in Dehiwala-Mount Lavinia in December
Dehiwala-Mount Lavinia, Sri Lanka averages a high of 29.1°C (84.4°F) and low of 23.3°C (73.9°F) in December, with 18 rain days and 9.1 hours of daily sunshine. Travel score: 68.3/100 (Good). The best time to visit Dehiwala-Mount Lavinia is February.
High
29°C84°F
Low
23°C74°F
🌧️
18
rain days
☀️
9.1
hrs/day sunshine
💧
82%
humidity
68— Good
December in Dehiwala-Mount Lavinia is hot and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Dehiwala-Mount Lavinia?
How much does it rain in Dehiwala-Mount Lavinia in December?
Dehiwala-Mount Lavinia receives an average of 200.5mm of rainfall across 18 rainy days in December. The annual total is 2772.5mm.
What should I pack for Dehiwala-Mount Lavinia in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧥
Waterproof jacket
Frequent rain expected (18 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Sri Lanka in December?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31