Dehiwala Weather in April

April in Dehiwala brings very high temperatures, with highs of 32°C (90°F) and nights dropping to 26°C (79°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Dehiwala in April

As part of the rainy season, Dehiwala sees around 13 days of rain in April, with an average of 206 mm (8.1 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Dehiwala in April

In April, expect very high temperatures in Dehiwala, with highs of 32°C (90°F) and lows of 26°C (79°F) at night. For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 26°C (79°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Dehiwala in April

Enjoy a sunny month with about 234 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.

Wind Speed in Dehiwala in April

Wind speeds average 1 m/s (2 knots) during April. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.

Average water temperature in April

The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Dehiwala.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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 April

Min Temperature 26°C (79°F)  

Max Temperature 32°C (90°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 44%  

Precipitation 206 mm (8.1 in)  

Rainy days 13 days  

Humidity 72% *  

Windspeed 1 m/s (2 knots) *  

Sunshine 234 hours *  

Percentage Sunshine *  

* Data from: Colombo, Sri Lanka (5 KM, 3 Miles).

Daily Historical Temperatures

47-year average (1976-2025)

Based on our historical records, temperatures in Dehiwala typically stay consistent throughout April, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 25°C (77°F).

Average temperatures in April

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Daily Historical Precipitation

47-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in April

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Dehiwala in April

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.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Dehiwala historical weather extremes in April

Based on 25 years of weather observations (2001-2026), these are the most extreme conditions recorded in Dehiwala.

• The hottest April day on record in Dehiwala reached 35°C (95°F) (April 10, 2024).
• On April 30, 2002, Dehiwala saw its coldest April day with temperatures maxing out at 25°C (77°F).

What to Wear in Dehiwala in April

Warm but pleasant conditions in Dehiwala in April. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Dehiwala in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Dehiwala's climate page.

More climate data for Dehiwala

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Dehiwala climate overview or explore weather in Sri Lanka.