Sri Lanka in september: average Weather, Temperature and Climate, Where to go?
How is the weather in Sri Lanka in september? Is it the perfect time to visit Wilpattu National Park and Batticaloa? Look at our datas and our opinion on this page.
tolerable weather across 65% of the territory good weather across 36% of the territory
Weather in Sri Lanka in september 2021
Below, check out the weather forecast for the month of september for most popular cities in Sri Lanka. These datas are statistics for the month of september from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in september in Colombo
tolerable weather
Weather at 6am
83°F
Moderate rain at times
57% of time
23%
10%
10%
Weather at 12pm
85°F
Moderate rain at times
46% of time
27%
19%
8%
Weather at 6pm
81°F
Moderate rain at times
45% of time
20%
20%
9%
Weather at 3am
79°F
48%
29%
11%
9%
Where to go in Sri Lanka in september?
Where to go in Sri Lanka in september: destination map





Where should you go in Sri Lanka in september when it comes to the weather?
Remember:
The climate in Sri Lanka in september is tolerable across the board.
The climate throughout September in Sri Lanka is deteriorating throughout the country. Temperatures are rising again while rainfall is still intense. However, the weather in the Sri Lankan localities provide the opportunity to enjoy the sunshine and the cloud thinnings between showers.
Sptember in Colombo and the West Coast of the Island
It is hot in Colombo and its surroundings, especially in the middle of the day. Yet because of the rain that continues to fall at any time of day and night, the weather is barely favorable.
September in Jaffna and the Extreme North of the Island
The weather in Sri Lanka throughout September is more favorable in the north, as in the locality of Jaffna. The first weeks of September are pleasant and sunny. Towards the end of the month, the mornings are wetter.
September in Trincomalee and the Northeast of the Island
It is hot again in the northeast of the island of Ceylon, especially since the rains are relatively weak. Midday is particularly hot. Thanks to the sea breeze that tempers the heat, the atmosphere is still pleasant.
September in Nuwara Eliya and the Central Plain
The warmth is comfortable in Nuwara Eliya and its surroundings, yet with 26 days of intermittent showers in the day and intense rain in the evening, the September weather in Sri Lanka in the central plain, is just acceptable.
Climate in Sri Lanka in september
Climate in Colombo in september
In september, maximum temperature is 86°F and minimum temperature is 81°F (for an average temperature of 83°F). The climate is burning in that locality in this month. With 10.5in over 22 days, you will suffer the rain for your holidays. Remember to pack Rain coats.
With a bad weather, september is not the best time to go in this locality.
September | |||
Average temperature | 83°F | ||
Highest temperature | 86°F | ||
Lowest temperature | 81°F | ||
Sea temperature | 82°F | ||
Rainfall | 10.5in | ||
Number of days with rainfall | 22 day(s) (75%) | ||
Humidity | 86% | ||
Daily sunshine hours | 11 | ||
Cloud cover | 57% | ||
Length of day | 12:09 | ||
Our opinion at whereandwhen.net | tolerable |
Climate in Jaffna in september
In september, maximum temperature is 85°F and minimum temperature is 83°F (for an average temperature of 85°F). The climate is very hot in this location in september. With 2.6in over 12 days, you risk getting wet slightly during your trip. But this is rather moderate and it will not be continuous.
With a correct climate, the month of september is okay (but not the best time) for traveling in this city in Sri Lanka.
September | |||
Average temperature | 85°F | ||
Highest temperature | 85°F | ||
Lowest temperature | 83°F | ||
Sea temperature | 85°F | ||
Rainfall | 2.6in | ||
Number of days with rainfall | 12 day(s) (38%) | ||
Humidity | 81% | ||
Daily sunshine hours | 12 | ||
Cloud cover | 33% | ||
Length of day | 12:10 | ||
Our opinion at whereandwhen.net | good |
Climate in Anuradhapura in september
In september, maximum temperature is 92°F and minimum temperature is 81°F (for an average temperature of 86°F). The climate is very warm there in the month of september. With 2.4in over 10 days, rainfall can happen for your trip. But this is rather reasonably and it will not be continuous.
With a good weather, september is an advisable month to go there.
September | |||
Average temperature | 86°F | ||
Highest temperature | 92°F | ||
Lowest temperature | 81°F | ||
Rainfall | 2.4in | ||
Number of days with rainfall | 10 day(s) (33%) | ||
Humidity | 79% | ||
Daily sunshine hours | 12 | ||
Cloud cover | 47% | ||
Length of day | 12:09 | ||
Our opinion at whereandwhen.net | good |
Climate in Arugam Bay in september
In the month of september, the mean temperature in Arugam Bay is 86°F (maximum temperature is 90°F and minimum temperature is 83°F). The climate is very warm in that locality in september. With 3.5in over 17 days, rainfall can happen for your holidays. But this is rather moderate and it is only of temporary showers.
With a correct climate, september is okay (but not good time) for traveling in Arugam Bay in Sri Lanka.
September | |||
Average temperature | 86°F | ||
Highest temperature | 90°F | ||
Lowest temperature | 83°F | ||
Rainfall | 3.5in | ||
Number of days with rainfall | 17 day(s) (56%) | ||
Humidity | 78% | ||
Daily sunshine hours | 12 | ||
Cloud cover | 30% | ||
Length of day | 12:09 | ||
Our opinion at whereandwhen.net | tolerable |
Climate in Batticaloa in september
In the month of september, the mean temperature in Batticaloa is 86°F (maximum temperature is 90°F and minimum temperature is 83°F). The climate is very warm in that locality in september. With 3.5in over 17 days, rainfall can happen throughout your trip. But this is reasonably and it is only of temporary showers.
With proper weather, the month of september is okay (but not the best time) for traveling in that area.
September | |||
Average temperature | 86°F | ||
Highest temperature | 90°F | ||
Lowest temperature | 83°F | ||
Rainfall | 3.5in | ||
Number of days with rainfall | 17 day(s) (56%) | ||
Humidity | 78% | ||
Daily sunshine hours | 12 | ||
Cloud cover | 30% | ||
Length of day | 12:09 | ||
Our opinion at whereandwhen.net | tolerable |
All cities in Sri Lanka in september
Colombo in september | tolerable weather |
Jaffna in september | good weather |
Anuradhapura in september | good weather |
Arugam Bay in september | tolerable weather |
Batticaloa in september | tolerable weather |
Bentota in september | tolerable weather |
Dambulla in september | good weather |
Ella in september | tolerable weather |
Galle in september | tolerable weather |
Hikkaduwa in september | tolerable weather |
Kalutara in september | tolerable weather |
Kandy in september | tolerable weather |
Negombo in september | tolerable weather |
Neluwa in september | tolerable weather |
Nuwara Eliya in september | tolerable weather |
Udawalawe National Park in september | tolerable weather |
Wilpattu National Park in september | good weather |
Yala National Park in september | good weather |
Puttalam in september | good weather |
Trincomalee in september | good weather |
Dehiwala-Mount Lavinia in september | tolerable weather |
Weather data for Sri Lanka in september:
Weather data for Sri Lanka in september is derived from an average of the weather forecast since 2009 in Sri Lanka. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sri Lanka can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Sri Lanka.