San Juan weather live forecast

Today's maximum temperature in San Juan is expected to be 30°C. 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 Sunday 10th May 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 Sunday 10th May 2026

Expect sunshine and showers in San Juan, Puerto Rico with a maximum temperature of 30°C, 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 19% chance of some rain and a moderate breeze of 25 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 19% chance of some rain19
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 25 kph from the East25
    kph wind from E

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San Juan weather for Monday 11th May 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a moderate breeze of 24 kph from the east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 27% chance of some rain27
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 24 kph from the East24
    kph wind from E

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San Juan weather for Tuesday 12th May 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 33% chance of some rain and a moderate breeze of 23 kph from the east.

  • 31°C maximum temperature31
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 33% chance of some rain33
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 23 kph from the East23
    kph wind from E

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San Juan weather for Wednesday 13th May 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a moderate breeze of 23 kph from the south-east.

  • 31°C maximum temperature31
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 40% chance of some rain40
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 23 kph from the South-East23
    kph wind from SE

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San Juan weather for Thursday 14th May 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 55% chance of some rain and a moderate breeze of 23 kph from the south-east.

  • 31°C maximum temperature31
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 55% chance of some rain55
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 23 kph from the South-East23
    kph wind from SE

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  • Book cruises to the Med including 30th Birthday sailings
  • Filter deals by departure port, party size & duration
Go to Marella Cruises deal >>

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