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Katunayaka Weather in August
In Katunayaka, August brings very high daytime temperatures around 30°C (86°F), with nights cooling to 26°C (79°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Katunayaka in August
Katunayaka is in the rainy season in August, with rain on around 9 days and an average of 203 mm (8 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.
Temperature in Katunayaka in August
Expect highs of 30°C (86°F) in Katunayaka in August, with nights dropping to around 26°C (79°F). For most visitors, the main thing to prepare for is the heat during the day. At 26°C (79°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Katunayaka in August
Enjoy a sunny month with about 202 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.August in Katunayaka 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.
Katunayaka Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
28%
Precipitation
203 mm (8 in)
Rainy days
9 days
Humidity
77% *
Sunshine
202 hours *
Percentage Sunshine
*
* Data from: Colombo, Sri Lanka (29 KM, 18 Miles).
Katunayaka Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Katunayaka - and find the best time to visit.
Daily Historical Temperatures
45-year average (1976-2025)
Based on our historical records, temperatures in Katunayaka 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 Katunayaka in August
Browse day-by-day weather records for Katunayaka spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Katunayaka historical weather extremes in August
According to our 30 years of weather records for Katunayaka, the following extremes were recorded between 1996 and 2026.
- On August 28, 2023, temperatures climbed to 33°C (91°F), marking the warmest August day on record.
- Katunayaka experienced its chilliest August day on August 23, 1996, reaching only 25°C (77°F).
- Nighttime temperatures dropped to 19°C (66°F) on August 23, 2019, marking the coldest August night on record.
- The wettest August day on record brought 136 mm (5.4 in) of precipitation to Katunayaka (August 23, 1996).
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 Katunayaka in August
Warm temperatures in August 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 Katunayaka in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Katunayaka 3-Day Forecast
More climate data for Katunayaka
Temperature Rainfall Sunshine Humidity
See the full Katunayaka climate overview or explore weather in Sri Lanka.
Popular in August
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) Bucket list
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