Portlaoise weather live forecast

Today's maximum temperature in Portlaoise is expected to be 16°C. Select a day from the live weather forecast for Portlaoise, Ireland for more weather parameters.

5-day weather forecast updated at 04:05 on Monday 8th September 2025 GMT

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

Portlaoise weather forecast by day

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

Portlaoise weather for Monday 8th September 2025

Expect broken clouds in Portlaoise, Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Gentle breeze of 18 kph from the South-West18
    kph wind from SW

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Portlaoise weather for Tuesday 9th September 2025

Expect mostly cloudy with light rain in Portlaoise, Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 49% chance of some rain and a moderate breeze of 28 kph from the south.

  • 16°C maximum temperature16
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 49% chance of some rain49
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Moderate breeze of 28 kph from the South28
    kph wind from S

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Portlaoise weather for Wednesday 10th September 2025

Expect mostly cloudy with rain in Portlaoise, Ireland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a moderate breeze of 22 kph from the south-west.

  • 16°C maximum temperature16
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 90% chance of some rain90
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Moderate breeze of 22 kph from the South-West22
    kph wind from SW

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Portlaoise weather for Thursday 11th September 2025

Expect mostly cloudy with light rain in Portlaoise, Ireland with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a moderate breeze of 28 kph from the west.

  • 14°C maximum temperature14
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 63% chance of some rain63
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 14°C wind chill14
    °C wind chill
  • Moderate breeze of 28 kph from the West28
    kph wind from W

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Portlaoise weather for Friday 12th September 2025

Expect mostly cloudy with light rain in Portlaoise, Ireland with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 73% chance of some rain and a moderate breeze of 23 kph from the west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 73% chance of some rain73
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Moderate breeze of 23 kph from the West23
    kph wind from W

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

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