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Tangalle Weather in September
September in Tangalle brings high temperatures around 30°C (86°F) during the day, dropping to 25°C (77°F) at night, with quite a bit of rainfall expected, averaging around 150 mm (5.9 in) for the month.
Rainfall in Tangalle in September
The climate data from previous years indicates about 10 days of rain, averaging 150 mm (5.9 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Tangalle in September
Daytime highs in Tangalle in September reach 30°C (86°F), with nights around 25°C (77°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Tangalle in September
The month enjoys around 210 hours of sunshine, creating mostly sunny days with good weather conditions.For Tangalle itself, January, February and March generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Tangalle Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
35%
Precipitation
150 mm (5.9 in)
Rainy days
10 days
Humidity
77% *
Sunshine
210 hours *
Percentage Sunshine
*
* Data from: Hambantota, Sri Lanka (39 KM, 24 Miles).
Tangalle Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tangalle - and find the best time to visit.
Daily Historical Temperatures
43-year average (1976-2025)
Based on our historical records, temperatures in Tangalle typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in September
Daily Historical Precipitation
43-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Tangalle in September
Browse day-by-day weather records for Tangalle spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tangalle historical weather extremes in September
Our historical data for Tangalle spans 2004 to 2026, revealing these weather extremes.
- On September 8, 2018, temperatures climbed to 37°C (99°F), marking the warmest September day on record.
- Tangalle experienced its chilliest September day on September 6, 2004, reaching only 25°C (77°F).
- Nighttime temperatures dropped to 17°C (63°F) on September 2, 2020, marking the coldest September night on record.
Best Places in Sri Lanka in September
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 September →
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 Tangalle in September
Warm but pleasant conditions in Tangalle in September. 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Tangalle in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Tangalle 3-Day Forecast
More climate data for Tangalle
Temperature Rainfall Sunshine Humidity
See the full Tangalle climate overview or explore weather in Sri Lanka.
Popular in September
Where to go in September - average daytime high across popular destinations.
Colombo
30°C (86°F) Galle29°C (84°F) Mirissa29°C (84°F) Hikkaduwa29°C (84°F) Negombo30°C (86°F) Kandy
29°C (84°F) Unawatuna29°C (84°F) Nuwara Eliya28°C (82°F) Bucket list
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