Union Island weather live forecast

Tomorrow's maximum temperature in Union Island is expected to be 27°C.

5-day weather forecast updated at 04:07 on Monday 13th January 2025 GMT

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The 5-day weather forecast for St Vincent & the Grenadines (Union Island) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Union Island weather forecast by day

Below are the detailed weather forecasts for Union Island for the next 5 days.

Union Island weather for Monday 13th January 2025

Expect scattered clouds in Union Island, St Vincent & the Grenadines with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 23 kph from the East23
    kph wind from E

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Union Island weather for Tuesday 14th January 2025

Expect mostly cloudy with light rain in Union Island, St Vincent & the Grenadines with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a moderate breeze of 21 kph from the north-east.

  • 26°C maximum temperature26
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 48% chance of some rain48
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 21 kph from the North-East21
    kph wind from NE

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Union Island weather for Wednesday 15th January 2025

Expect mostly cloudy with light rain in Union Island, St Vincent & the Grenadines with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 44% chance of some rain and a gentle breeze of 16 kph from the north-east.

  • 26°C maximum temperature26
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 44% chance of some rain44
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 16 kph from the North-East16
    kph wind from NE

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Union Island weather for Thursday 16th January 2025

Expect isolated thunderstorms in Union Island, St Vincent & the Grenadines with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 18 kph from the east.

  • 26°C maximum temperature26
    °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 8 (Very High)8
    UV index (Very High)
  • 62% chance of some rain62
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 18 kph from the East18
    kph wind from E

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Union Island weather for Friday 17th January 2025

Expect isolated thunderstorms in Union Island, St Vincent & the Grenadines with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a moderate breeze of 26 kph from the east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 67% chance of some rain67
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 26 kph from the East26
    kph wind from E

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  • Travel before 30th April 2026 (inclusive)
Show discount codeShow discount code ******200
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Metric (°C / mm)  |  Imperial (°F / inches)

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