Mirissa Beach weather live forecast

Today's maximum temperature in Mirissa Beach is expected to be 31°C. Select a day from the live weather forecast for Mirissa Beach, Sri Lanka for more weather parameters.

5-day weather forecast updated at 04:03 on Monday 8th September 2025 GMT

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

Mirissa Beach weather forecast by day

Below are the detailed weather forecasts for Mirissa Beach for the next 5 days.

Mirissa Beach weather for Monday 8th September 2025

Expect scattered clouds in Mirissa Beach, Sri Lanka with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the west.

  • 31°C maximum temperature31
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 23 kph from the West23
    kph wind from W

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Mirissa Beach weather for Tuesday 9th September 2025

Expect isolated thunderstorms in Mirissa Beach, Sri Lanka with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 18 kph from the west.

  • 31°C maximum temperature31
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 49% chance of some rain49
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 18 kph from the West18
    kph wind from W

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Mirissa Beach weather for Wednesday 10th September 2025

Expect isolated thunderstorms in Mirissa Beach, Sri Lanka with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 90% chance of some rain and a gentle breeze of 19 kph from the west.

  • 30°C maximum temperature30
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 90% chance of some rain90
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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Mirissa Beach weather for Thursday 11th September 2025

Expect isolated thunderstorms in Mirissa Beach, Sri Lanka with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 19 kph from the west.

  • 29°C maximum temperature29
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 75% chance of some rain75
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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Mirissa Beach weather for Friday 12th September 2025

Expect isolated thunderstorms in Mirissa Beach, Sri Lanka with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 40-50 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 20 kph from the west.

  • 30°C maximum temperature30
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 98% chance of some rain98
    % chance of some rain
  • 40-50 mm of rainfall expected<50
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 20 kph from the West20
    kph wind from W

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

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