Negombo Weather in August
August in Negombo brings high temperatures around 30°C (86°F) during the day, dropping to 26°C (79°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in Negombo in August
As part of the rainy season, Negombo sees around 8 days of rain in August, with an average of 195 mm (7.7 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 Negombo in August
Daytime highs in Negombo in August reach 30°C (86°F), with nights around 26°C (79°F). This kind of day-to-night contrast is typical for this time of year. Nights stay warm at around 26°C (79°F), so light bedding and good ventilation are worth thinking about.
Sunshine in Negombo in August
The city usually sees around 202 hours of sunlight, indicating many sunny days despite it being the rainy season.August in Negombo 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 Negombo's climate page.
Negombo Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
26%
Precipitation
195 mm (7.7 in)
Rainy days
8 days
Humidity
77% *
Sunshine
202 hours *
Percentage Sunshine
*
Daily Historical Temperatures
45-year average (1976-2025)
Based on our historical records, temperatures in Negombo 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 for Negombo in August
Browse day-by-day weather records for Negombo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Negombo historical weather extremes in August
According to our 29 years of weather records for Negombo, the following extremes were recorded between 1996 and 2025.
- The hottest August day on record in Negombo reached 33°C (91°F) (August 28, 2023).
- The lowest daytime temperature in August was 25°C (77°F), recorded on August 23, 1996.
- Nighttime temperatures dropped to 19°C (66°F) on August 23, 2019, marking the coldest August night on record.
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
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tolerable
unpleasant
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What to Wear in Negombo 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! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Negombo in August
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 Negombo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Negombo climate overview or explore weather in Sri Lanka.
