Kalutara
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Kalutara Weather in August

With daytime temperatures of 30°C (86°F) and nighttime lows of 25°C (77°F), August in Kalutara brings high temperatures during the day. Do keep in mind that August is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Kalutara in August

As part of the rainy season, Kalutara sees around 10 days of rain in August, with an average of 260 mm (10 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Kalutara in August

In August, expect high temperatures in Kalutara, with highs of 30°C (86°F) and lows of 25°C (77°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.

Sunshine in Kalutara in August

The month enjoys around 202 hours of sunshine. The wet weather tends to wait until afternoon or evening to arrive, leaving the first half of most days dry and sunny.

August in Kalutara can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Kalutara Temperature in August

Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
35%
Precipitation
260 mm (10 in)
Rainy days
10 days
Humidity
77% *
Sunshine
202 hours *
Percentage Sunshine
*
* Data from: Colombo, Sri Lanka (36 KM, 22 Miles).

Kalutara Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Kalutara - and find the best time to visit.

Daily Historical Temperatures

45-year average (1976-2025)

Based on our historical records, temperatures in Kalutara typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in August

Daily Historical Precipitation

45-year average (1976-2025)

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

Average precipitation in August

Historical weather records for Kalutara in August

Browse day-by-day weather records for Kalutara spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Kalutara historical weather extremes in August

Our historical data for Kalutara spans 1996 to 2026, revealing these weather extremes.

  • The hottest August day on record in Kalutara reached 34°C (93°F) (August 10, 2015).
  • On August 23, 1996, Kalutara saw its coldest August day with temperatures maxing out at 25°C (77°F).
  • Kalutara registered its coldest August night on August 3, 2019, with temperatures dropping to 17°C (63°F).

Best Places in Sri Lanka in August

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 August →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Kalutara in August

Warm but pleasant conditions in Kalutara in August. 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Kalutara in August

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

Kalutara 3-Day Forecast

More climate data for Kalutara

Popular in August

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.