Unawatuna Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Unawatuna.
Climate overview of Unawatuna
Unawatuna Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Unawatuna - and find the best time to visit.
Monthly Temperature in Unawatuna
The climate in Unawatuna remains fairly constant, offering comfortable temperatures throughout the year. Average maximum daytime temperatures range from a very warm 30°C (86°F) in March, the warmest time of the year, to a comfortable 29°C (84°F) during cooler months like August.
At night, you can expect temperatures ranging from 26°C (79°F) in March to around 25°C (77°F) during August.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Unawatuna
Unawatuna is known for its substantial rainfall, with annual precipitation reaching 2372 mm (93 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, May it receives heavy rainfall, averaging 294 mm (12 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month February brings less rainfall, with 68 mm (2.7 in) over 5 rainy days. For more details, please visit our Unawatuna Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Unawatuna
While the amount of sunshine in Unawatuna varies throughout the year, all seasons offer their own charm. Enjoy up to 9.0 hours of daily sun in March, and experience slightly darker atmosphere in September, with about 6.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Unawatuna
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January
- Warmest weather: all year round
- Most sunshine: March
- Fewest rainy days: January and February
- Seasonal pattern: A distinct rainy season from April to November
Frequently asked questions about the climate in Unawatuna
What is the best time to visit Unawatuna?
January typically offers the most optimal weather in Unawatuna. In contrast, May, June, September, October and November tend to have less optimal conditions. Unawatuna has a distinct rainy season from April to November.
What temperatures can I expect in Unawatuna?
Daytime highs range from 29°C (84°F) in August to 30°C (86°F) in March. Nighttime lows range from 25°C (77°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Unawatuna get?
Annual rainfall is around 2372 mm (93 in). May is the wettest month with 294 mm (12 in), while February is the driest with 68 mm (2.7 in).
How sunny is Unawatuna?
Unawatuna receives around 2,609 hours of sunshine per year. March is the sunniest month with 270 hours, while September is the cloudiest with just 180 hours. Overall, Unawatuna enjoys abundant sunshine.
Unawatuna 3-Day Forecast
Unawatuna on the map
Unawatuna is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Colombo
30°C (86°F) Negombo30°C (86°F) Mirissa29°C (84°F) Unawatuna29°C (84°F) Hikkaduwa29°C (84°F) Galle29°C (84°F) Kandy
29°C (84°F) Nuwara Eliya28°C (82°F) 
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