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Wadduwa Weather in September
September in Wadduwa averages 30°C (86°F) during the day and 25°C (77°F) at night. September is part of the rainy season, with around 285 mm (11 in) of rainfall and frequent showers.
Rainfall in Wadduwa in September
Wadduwa is in the rainy season in September, with rain on around 14 days and an average of 285 mm (11 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Wadduwa in September
September in Wadduwa brings high temperatures, with highs of 30°C (86°F) and nights around 25°C (77°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. 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 Wadduwa in September
The area enjoys a moderate level of sunlight, with around 189 hours. It's a good balance between sunny and rainy days.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Wadduwa. Our weather planner can help you explore destinations with more pleasant weather conditions.
Wadduwa Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
45%
Precipitation
285 mm (11 in)
Rainy days
14 days
Humidity
76% *
Sunshine
189 hours *
Percentage Sunshine
*
* Data from: Colombo, Sri Lanka (27 KM, 16 Miles).
Wadduwa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wadduwa - and find the best time to visit.
Daily Historical Temperatures
46-year average (1976-2025)
Based on our historical records, temperatures in Wadduwa 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
46-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 Wadduwa in September
Browse day-by-day weather records for Wadduwa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Wadduwa historical weather extremes in September
Based on weather observations in Wadduwa between 1998 and 2026, these are the recorded extremes during September.
- Wadduwa recorded its highest September temperature of 35°C (95°F) on September 22, 2019.
- The lowest daytime temperature in September was 25°C (77°F), recorded on September 24, 2000.
- The coldest night in September in Wadduwa was on September 25, 2020, with a minimum of 10°C (50°F).
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 Wadduwa in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Wadduwa in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Wadduwa 3-Day Forecast
More climate data for Wadduwa
Temperature Rainfall Sunshine Humidity
See the full Wadduwa 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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