Trincomalee weather in September

Check the Weather in Trincomalee, Sri Lanka in September before you book your next holiday. This gives the best indication of the weather in September and includes figures for temperature, sunshine and rainfall.

  • 34°C maximum daytime temperature in September in Trincomalee34
    34°C max day temperature
  • 7 hours of sunshine per day (56% of daylight hours) in September in Trincomalee7
    7 hours of sunshine per day
  • 6 days with some rainfall in September in Trincomalee6
    6 days with some rainfall
  • 25°C minimum night-time temperature in September in Trincomalee25
    25°C min night temperature
  • 12 hours of daylight per day in September in Trincomalee12
    12 hours of daylight per day
  • Very high heat & humidity in September in TrincomaleeVH
    Very High heat & humidity
  • 96 mm monthly rainfall in September in Trincomalee96
    96 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Trincomalee11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Trincomalee29
    29°C sea temperature

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Metric (°C / mm)  |  Imperial (°F / inches)

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