August weather forecast
Sri Lanka

August in Sri Lanka represents a transition period where the southwest monsoon's influence wanes, giving way to clearer skies and drier conditions. Average temperatures during this month hover between 20°C (68°F) to 26°C (78.8°F). In contrast, the central highland regions, including Nuwara Eliya, maintain their cooler ambiance with readings from 10°C (50°F) to 22°C (71.6°F).

August's weather is noticeably drier than July, especially in the previously rain-soaked southwestern regions. As a result, the environment feels less humid, making outdoor activities more enjoyable. The reduction in rainfall presents a stark contrast to the heavy showers that dominated the months of June and July.

The eastern coast, particularly areas like Batticaloa, continues its trend of experiencing minimal rainfall, favoring sunnier days and warm temperatures. This region remains one of the most suitable for beach and sea activities during this month.

Moving into September, the climate remains relatively dry across most of the island. However, there's an underlying anticipation as Sri Lanka slowly approaches the onset of the northeast monsoon, which typically starts impacting the weather patterns towards the end of the year.

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• Colombo - August »
  The month with the coldest seawater in Colombo is August, with an average sea temperature of 27.2°C (81°F). In August, Colombo sees another increase in rainfall to 287mm (11.3"), although temperature conditions remain relatively stable.
• Kandy - August »
  By the time August rolls around, Kandy's yearly patterns have placed it at a crucial transitional phase between the warm, humid monsoon period and relatively cooler, drier months ahead. In Kandy in August, during 25.8 rainfall days, 84mm (3.31") of precipitation is typically accumulated.
• Galle - August »
  August is the month with the coldest seawater in Galle, with an average sea temperature of 27.5°C (81.5°F). The months with the highest UV index in Galle are January through April, June through August, October through December, with an average maximum UV index of 7.
• Jaffna - August »
  May, August and September, with an average relative humidity of 79%, are most humid months in Jaffna, Sri Lanka. August's advent in Jaffna presents an average high-temperature of a still moderately hot 28.8°C (83.8°F), indicating a slight variation from the conditions of the previous month.
• Anuradhapura - August »
  In Anuradhapura in August, during 12.1 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In August, the average heat index, which represents the influence of relative humidity on air temperature, is evaluated at 43°C (109.4°F).
• Nuwara Eliya - August »
  In Nuwara Eliya in August, during 27 rainfall days, 135mm (5.31") of precipitation is typically accumulated. In Nuwara Eliya, Sri Lanka, in August, during 27 rainfall days, 135mm (5.31") of precipitation is typically accumulated.
• Ratnapura - August »
  The months with the highest UV index in Ratnapura, Sri Lanka, are January through August, November and December, with an average maximum UV index of 6. On the last day of August, in Ratnapura, sunrise is at 06:01 and sunset at 18:16 +0530.
• Trincomalee - August »
  On the first day of August in Trincomalee sunrise is at 05:56 and sunset at 18:26. In Trincomalee in August, it is raining for 11.5 days, with typically 29mm (1.14") of accumulated precipitation.
• Batticaloa - August »
  In Batticaloa, in August, during 20.6 rainfall days, 55mm (2.17") of precipitation is typically accumulated. In Batticaloa, in August, during 20.6 rainfall days, 55mm (2.17") of precipitation is typically accumulated.
• Matara - August »
  Matara transitions into August recording an average high-temperature of a still warm 29.3°C (84.7°F), closely aligning with the preceding month's temperature. On the last day of August, in Matara, sunrise is at 06:01 and sunset at 18:15 +0530.
• Negombo - August »
  June through August, with an average relative humidity of 82%, are most humid months in Negombo, Sri Lanka. August is the month with the coldest seawater in Negombo, with an average sea temperature of 27°C (80.6°F).
• Badulla - August »
  In Badulla, Sri Lanka, during August, the rain falls for 27 days and regularly aggregates up to 135mm (5.31") of precipitation. Badulla registers an average high-temperature of a still warm 27.1°C (80.8°F) at the commencement of August, closely related to the preceding month.