Gros Islet weather live forecast

Today's maximum temperature in Gros Islet is expected to be 82°F. Select a day from the live weather forecast for Gros Islet, St Lucia for more weather parameters.

5-day weather forecast updated at 04:03 on Thursday 22nd January 2026 GMT

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

Gros Islet weather forecast by day

Below are the detailed weather forecasts for Gros Islet for the next 5 days.

Gros Islet weather for Thursday 22nd January 2026

Expect sunshine and showers in Gros Islet, St Lucia with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 69% chance of some rain and a gentle breeze of 8 mph from the east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 69% chance of some rain69
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 8 mph from the East8
    mph wind from E

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Gros Islet weather for Friday 23rd January 2026

Expect sunshine and showers in Gros Islet, St Lucia with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 61% chance of some rain and a light breeze of 6 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 61% chance of some rain61
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 6 mph from the East6
    mph wind from E

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Gros Islet weather for Saturday 24th January 2026

Expect sunshine and showers in Gros Islet, St Lucia with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 10 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 68% chance of some rain68
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 10 mph from the East10
    mph wind from E

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Gros Islet weather for Sunday 25th January 2026

Expect sunshine and showers in Gros Islet, St Lucia with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a moderate breeze of 12 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 52% chance of some rain52
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 12 mph from the East12
    mph wind from E

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Gros Islet weather for Monday 26th January 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 13 mph from the east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 57% chance of some rain57
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 13 mph from the East13
    mph wind from E

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  • Save up to £300 on all inclusive Caribbean holidays
  • Discount varies by total spend. 7 night minimum stay
  • Travel before 31st December 2028 (inclusive)
Show discount codeShow discount code ******AVE

Expires at 23:59 on Tuesday 3rd Feb 2026 · View all Sandals offers

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