Dehiwala Weather in June
June in Dehiwala typically sees daytime highs of 30°C (86°F) and nighttime lows of 26°C (79°F). June falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Dehiwala in June
Dehiwala is in the rainy season in June, with rain on around 15 days and an average of 287 mm (11 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Dehiwala in June
In June, Dehiwala sees very high temperatures, with highs of 30°C (86°F). Nights drop to around 26°C (79°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Dehiwala in June
Expect sunny days throughout the month, with an estimated 195 hours of sunshine. Despite being the rainy season, it could still be a nice time to visit. Rain often arrives later in the day, keeping most of the days sunny.
Wind Speed in Dehiwala in June
Wind speeds average 2 m/s (4 knots) during June. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.
Average water temperature in June
The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.June in Dehiwala has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations 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 Dehiwala's climate page.
Dehiwala Temperature in June
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Water Temperature
28°C (82°F) *
Chance of Rain
49%
Precipitation
287 mm (11 in)
Rainy days
15 days
Humidity
79% *
Windspeed
2 m/s (4 knots) *
Sunshine
195 hours *
Percentage Sunshine
*
Daily Historical Temperatures
42-year average (1976-2025)
Based on our historical records, temperatures in Dehiwala typically stay consistent throughout June, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in June
Daily Historical Precipitation
42-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Historical weather for Dehiwala in June
Browse day-by-day weather records for Dehiwala spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Dehiwala historical weather extremes in June
Based on 28 years of weather observations in Dehiwala between 1997 and 2025, these are the recorded extremes.
- Dehiwala recorded its highest June temperature of 34°C (93°F) on June 30, 2019.
- On June 8, 2013, Dehiwala saw its coldest June day with temperatures maxing out at 27°C (81°F).
- The lowest overnight temperature recorded in June was 23°C (73°F) (June 14, 2021).
- Peak precipitation in June occurred on June 4, 2021, when 184 mm (7.2 in) of precipitation was measured.
Best Places in Sri Lanka in June
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 June →
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What to Wear in Dehiwala in June
Warm weather calls for comfortable, breathable clothing in June. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Dehiwala in June
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 Dehiwala's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Dehiwala climate overview or explore weather in Sri Lanka.
