Unawatuna Weather in May
During May, Unawatuna experiences high daytime temperatures of 30°C (86°F) and cooler nights around 26°C (79°F). As the wettest month of the year, expect frequent rainfall.
Rainfall in Unawatuna in May
Unawatuna is in the rainy season in May, with rain on around 12 days and an average of 294 mm (12 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Unawatuna in May
In May, Unawatuna sees high temperatures, with highs of 30°C (86°F). Nights drop to around 26°C (79°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights remain warm at around 26°C (79°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.
Sunshine in Unawatuna in May
Expect a lot of sunshine this month, with about 200 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.May in Unawatuna has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Sri Lanka, check out our Unawatuna's climate page.
Unawatuna Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
39%
Precipitation
294 mm (12 in)
Rainy days
12 days
Sunshine
200 hours *
Percentage Sunshine
*
Historical weather for Unawatuna in May
Browse day-by-day weather records for Unawatuna spanning 25 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Unawatuna historical weather extremes in May
According to our 21 years of weather records for Unawatuna, the following extremes were recorded between 2005 and 2026.
- On May 31, 2019, temperatures climbed to 35°C (95°F), marking the warmest May day on record.
- Unawatuna experienced its chilliest May day on May 30, 2006, reaching only 27°C (81°F).
- The lowest overnight temperature recorded in May was 10°C (50°F) (May 17, 2021).
Best Places in Sri Lanka in May
Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month. See all of Sri Lanka in May →
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What to Wear in Unawatuna in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Unawatuna in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Sri Lanka, check out our Unawatuna's climate page.
See the full Unawatuna climate overview or explore weather in Sri Lanka.
