Unawatuna weather live forecast

Today's maximum temperature in Unawatuna is expected to be 90°F. Select a day from the live weather forecast for Unawatuna, Sri Lanka for more weather parameters.

5-day weather forecast updated at 04:02 on Thursday 10th September 2026 GMT

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The 5-day weather forecast for Sri Lanka (Unawatuna) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Unawatuna weather forecast by day

Below are the detailed weather forecasts for Unawatuna for the next 5 days.

Unawatuna weather for Sunday 13th September 2026

Expect isolated thunderstorms in Unawatuna, Sri Lanka with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 73% chance of some rain and a gentle breeze of 9 mph from the west.

  • 90°F maximum temperature90
    °F maximum temperature
  • 84°F minimum temperature84
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 73% chance of some rain73
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 9 mph from the West9
    mph wind from W

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Unawatuna weather for Monday 14th September 2026

Expect isolated thunderstorms in Unawatuna, Sri Lanka with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 87% chance of some rain and a gentle breeze of 9 mph from the west.

  • 90°F maximum temperature90
    °F maximum temperature
  • 84°F minimum temperature84
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 87% chance of some rain87
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 9 mph from the West9
    mph wind from W

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Unawatuna weather for Tuesday 15th September 2026

Expect isolated thunderstorms in Unawatuna, Sri Lanka with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 2 hours of bright sunshine. There are 40-50 mm of rainfall expected with 96% chance of some rain and a gentle breeze of 9 mph from the west.

  • 88°F maximum temperature88
    °F maximum temperature
  • 84°F minimum temperature84
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 96% chance of some rain96
    % chance of some rain
  • 40-50 mm of rainfall expected<50
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 9 mph from the West9
    mph wind from W

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Unawatuna weather for Wednesday 16th September 2026

Expect isolated thunderstorms in Unawatuna, Sri Lanka with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 96% chance of some rain and a gentle breeze of 9 mph from the west.

  • 86°F maximum temperature86
    °F maximum temperature
  • 82°F minimum temperature82
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 96% chance of some rain96
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 9 mph from the West9
    mph wind from W

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