Koggala Weather in September

September in Koggala typically sees daytime highs of 29°C (84°F) and nighttime lows of 25°C (77°F). September falls within the rainy season, so heavy rainfall is to be expected.

Rainfall in Koggala in September

As part of the rainy season, Koggala sees around 12 days of rain in September, with an average of 246 mm (9.7 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 Koggala in September

Koggala in September gets highs of 29°C (84°F) during the day and drops to 25°C (77°F) at night. 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 Koggala in September

The month brings about 180 hours of sunlight, offering a comfortable mix of sun and rainy moments.

If your ideal day consists of dry skies and pleasant temperatures, December typically offers the best circumstances for Koggala.

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

Koggala Temperature in September

Min Temperature 25°C (77°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 39%  

Precipitation 246 mm (9.7 in)  

Rainy days 12 days  

Sunshine 180 hours *  

Percentage Sunshine *  

* Data from: Galle, Sri Lanka (14 KM, 8 Miles).

Historical weather for Koggala in September

Browse day-by-day weather records for Koggala spanning 25 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Koggala historical weather extremes in September

According to our 21 years of weather records for Koggala, the following extremes were recorded between 2004 and 2025.

• The warmest day in September was on September 17, 2020, with a maximum of 37°C (99°F).
• On September 6, 2004, Koggala saw its coldest September day with temperatures maxing out at 26°C (79°F).
• The coldest night in September in Koggala was on September 1, 2020, with a minimum of 11°C (52°F).
• The heaviest September precipitation occurred on September 5, 2017, when 131 mm (5.2 in) of precipitation fell.

What to Wear in Koggala 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! Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Koggala 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 Koggala's climate page.

More climate data for Koggala

Temperature Rainfall Sunshine

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