San Juan weather live forecast

Today's maximum temperature in San Juan is expected to be 79°F. Select a day from the live weather forecast for San Juan, Puerto Rico for more weather parameters.

5-day weather forecast updated at 04:00 on Saturday 28th March 2026 GMT

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

San Juan weather forecast by day

Below are the detailed weather forecasts for San Juan for the next 5 days.

San Juan weather for Saturday 28th March 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 79°F, low 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 93% chance of some rain and a gentle breeze of 9 mph from the east.

  • 79°F maximum temperature79
    °F maximum temperature
  • 75°F minimum temperature75
    °F 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)
  • 93% chance of some rain93
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 9 mph from the East9
    mph wind from E

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San Juan weather for Sunday 29th March 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 13 mph from the north-east.

  • 79°F maximum temperature79
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 56% chance of some rain56
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 13 mph from the North-East13
    mph wind from NE

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San Juan weather for Monday 30th March 2026

Expect broken clouds in San Juan, Puerto Rico with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the north-east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 14 mph from the North-East14
    mph wind from NE

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San Juan weather for Tuesday 31st March 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 77°F, low 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 80% chance of some rain and a moderate breeze of 14 mph from the north-east.

  • 77°F maximum temperature77
    °F maximum temperature
  • 75°F minimum temperature75
    °F 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)
  • 80% chance of some rain80
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 14 mph from the North-East14
    mph wind from NE

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San Juan weather for Wednesday 1st April 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 81% chance of some rain and a moderate breeze of 14 mph from the east.

  • 79°F maximum temperature79
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 81% chance of some rain81
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 14 mph from the East14
    mph wind from E

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  • Book selected stays in popular destinations around the world
  • Travel before 31st December 2026 (inclusive)
Go to Travelbag deal >>

Expires at 23:59 on Tuesday 31st Mar 2026 · View all Travelbag offers

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