Sri Jayewardenepura Kotte Weather in September

Sri Jayewardenepura Kotte in September sees very high daytime temperatures of 30°C (86°F) and nighttime lows of 25°C (77°F). As part of the rainy season, showers are frequent and often heavy. Budget around 265 mm (10 in) of rainfall for the month.

Rainfall in Sri Jayewardenepura Kotte in September

Sri Jayewardenepura Kotte is in the rainy season in September, with rain on around 14 days and an average of 265 mm (10 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.

Temperature in Sri Jayewardenepura Kotte in September

September in Sri Jayewardenepura Kotte brings very high temperatures, with highs of 30°C (86°F) and nights around 25°C (77°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.

Sunshine in Sri Jayewardenepura Kotte in September

The area enjoys a moderate level of sunlight, with around 189 hours. It's a good balance between sunny and rainy days.

Wind Speed in Sri Jayewardenepura Kotte in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

Average water temperature in September

At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Sri Jayewardenepura Kotte. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit Sri Lanka, check out our Sri Jayewardenepura Kotte's climate page.

Sri Jayewardenepura Kotte Temperature in September

Min Temperature 25°C (77°F)  

Max Temperature 30°C (86°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 46%  

Precipitation 265 mm (10 in)  

Rainy days 14 days  

Humidity 76% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 189 hours *  

Percentage Sunshine *  

* Data from: Colombo, Sri Lanka (4 KM, 2 Miles).

What to Wear in Sri Jayewardenepura Kotte 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. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Sri Jayewardenepura Kotte in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Sri Jayewardenepura Kotte's climate page.

More climate data for Sri Jayewardenepura Kotte

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Sri Jayewardenepura Kotte climate overview or explore weather in Sri Lanka.