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Weather in September in Sri Lanka

Planning a journey to Sri Lanka this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in Sri Lanka in September?

The weather in Sri Lanka in September can be quite varied, with temperatures that range from warm to very hot and precipitation levels ranging from moderate to heavy.

Temperatures

The average maximum daytime temperatures vary from warm in Ramboda at 26°C to very hot in Polonnaruwa at 36°C. Nighttime temperatures generally drop to 26°C in Polonnaruwa and 19°C in Ramboda.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Yala National Park with an average of 41 mm to heavy rainfall in Beruwala with 311 mm.

Average sunshine

The city Kandy usually sees around 87 hours of sunlight, indicating fewer sunny days.

To learn more about the conditions in specific areas of Sri Lanka in September, check out the map below. For more details on the yearly weather, visit our Sri Lanka climate page.

Where to go in Sri Lanka in September

Find more information for the most popular destinations in the Sri Lanka on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Sri Lanka?

Kandy

In September Kandy generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 21°C and high monthly rainfall. So on average the conditions are pleasant that month.

Kandy
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
21°C 
75 hours 
107 mm 
11 days 
29°C 
21°C 
87 hours 
132 mm 
12 days 
October   >> October
>>  
28°C 
21°C 
119 hours 
305 mm 
16 days 
poor 
Climate in Kandy

Hikkaduwa

In September Hikkaduwa generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.

Hikkaduwa
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
26°C 
201 hours 
237 mm 
10 days 
29°C 
25°C 
180 hours 
278 mm 
12 days 
poor 
October   >> October
>>  
29°C 
25°C 
200 hours 
307 mm 
14 days 
poor 
Climate in Hikkaduwa

Negombo

In September Negombo generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are poor that month.

Negombo
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
30°C 
26°C 
202 hours 
195 mm 
8 days 
30°C 
26°C 
189 hours 
245 mm 
12 days 
poor 
October   >> October
>>  
30°C 
25°C 
202 hours 
338 mm 
15 days 
poor 
Climate in Negombo

Mirissa

In September Mirissa generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Mirissa
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
25°C 
201 hours 
179 mm 
9 days 
29°C 
25°C 
180 hours 
225 mm 
11 days 
October   >> October
>>  
30°C 
25°C 
200 hours 
260 mm 
13 days 
poor 
Climate in Mirissa

Nuwara Eliya

In September Nuwara Eliya generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 20°C and heavy monthly rainfall. So on average the conditions are pleasant that month.

Nuwara Eliya
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
28°C 
20°C 
75 hours 
124 mm 
11 days 
28°C 
20°C 
87 hours 
166 mm 
13 days 
October   >> October
>>  
27°C 
19°C 
119 hours 
292 mm 
16 days 
poor 
Climate in Nuwara Eliya

Is your destination not in the list? Have a look at other destinations in Sri Lanka.

Is September the best time to visit Sri Lanka?

In our opinion, September is a good time to visit Sri Lanka with overall pleasant weather in Kandy. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, February provides perfect weather in Kandy. The weather in April, October and November, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Sri Lanka. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Sri Lanka? Get detailed historical weather averages for many cities in Sri Lanka.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.