Rajagiriya Weather in September

September in Rajagiriya brings very high temperatures, with highs of 30°C (86°F) and nights dropping to 25°C (77°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.

Rainfall in Rajagiriya in September

As part of the rainy season, Rajagiriya sees around 14 days of rain in September, with an average of 263 mm (10 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 Rajagiriya in September

September in Rajagiriya sees highs of 30°C (86°F) and lows of 25°C (77°F) overnight. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in Rajagiriya in September

You can expect a moderate amount of sunlight, with approximately 189 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

Wind Speed in Rajagiriya 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

The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

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

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 Rajagiriya's climate page.

Rajagiriya 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 263 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 (3 KM, 2 Miles).

What to Wear in Rajagiriya in September

Warm but pleasant conditions in Rajagiriya 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Rajagiriya 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 Rajagiriya's climate page.

More climate data for Rajagiriya

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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