Temp
28° C
average
Rain
88 mm
per month
Sun
27 %
chance
Humidity
82 %
average
What’s the weather like in Sri Lanka in September?
In September, Sri Lanka experiences the transition from the southwest monsoon season to the northeast monsoon season. The weather starts to become drier and clearer towards the end of the month. However, occasional showers can still be expected in some parts of the country.
Average daily temperatures
In September, the average daily temperature in Sri Lanka ranges between 25°C (77°F) to 30°C (86°F). The coastal areas, especially in the north and east, tend to be slightly warmer than the central highlands. The higher altitude areas, such as Nuwara Eliya, enjoy cooler temperatures ranging from 15°C (59°F) to 20°C (68°F).
Sunshine and rainfall
Despite the transition to the northeast monsoon season, Sri Lanka still receives a fair amount of sunshine in September. The average daily sunshine hours range from 6 to 8 hours, providing ample opportunities to explore and enjoy outdoor activities.
However, rainfall can still occur during this month, although the frequency and intensity decrease compared to previous months. On average, September receives around 150mm of rainfall throughout the country. The southern and western coastal areas tend to receive slightly higher rainfall than the rest of the country.
It’s worth noting that these weather patterns can vary from year to year, so it’s always recommended to check the forecast before planning any outdoor activities during your visit to Sri Lanka in September.
