Nallathanniya Weather in September

September in Nallathanniya averages 27°C (81°F) during the day and 21°C (70°F) at night. September is part of the rainy season, with around 261 mm (10 in) of rainfall and frequent showers.

Rainfall in Nallathanniya in September

As part of the rainy season, Nallathanniya sees around 13 days of rain in September, with an average of 261 mm (10 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Nallathanniya in September

In September, expect high temperatures in Nallathanniya, with highs of 27°C (81°F) and lows of 21°C (70°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 21°C (70°F), the nights are warm and generally comfortable.

Sunshine in Nallathanniya in September

Expect a lot of sunshine this month, with about 190 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.

September in Nallathanniya 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.

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

Nallathanniya Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 45%  

Precipitation 261 mm (10 in)  

Rainy days 13 days  

Humidity 78% *  

Sunshine 190 hours *  

Percentage Sunshine *  

* Data from: Ratnapura, Sri Lanka (20 KM, 12 Miles).

What to Wear in Nallathanniya in September

Warm temperatures in September 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 Nallathanniya 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

6/10

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 Nallathanniya's climate page.

More climate data for Nallathanniya

Temperature Rainfall Sunshine Humidity

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