San Juan weather live forecast

Today's maximum temperature in San Juan is expected to be 88°F. Select a day from the live weather forecast for San Juan, Puerto Rico for more weather parameters.

• Friday
  17th Jul
  88
  81
  
  8
  10
• Saturday
  18th Jul
  86
  81
  
  7
  10
• Sunday
  19th Jul
  88
  81
  
  8
  9
• Monday
  20th Jul
  88
  81
  
  8
  11
• Tuesday
  21st Jul
  86
  79
  
  6
  10

5-day weather forecast updated at 04:00 on Friday 17th July 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 Friday 17th July 2026

Expect scattered clouds in San Juan, Puerto Rico with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the east.

• 88
  °F maximum temperature
• 81
  °F minimum temperature
• 
  scattered clouds
• 8
  hours of sunshine
• 10
  UV index (Very High)
• 0
  mm of rainfall expected
• M
  moderate heat & humidity
• 16
  mph wind from E

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San Juan weather for Saturday 18th July 2026

Expect broken clouds in San Juan, Puerto Rico with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the east.

• 86
  °F maximum temperature
• 81
  °F minimum temperature
• 
  broken clouds
• 7
  hours of sunshine
• 10
  UV index (Very High)
• 0
  mm of rainfall expected
• M
  moderate heat & humidity
• 16
  mph wind from E

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San Juan weather for Sunday 19th July 2026

Expect scattered clouds in San Juan, Puerto Rico with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the east.

• 88
  °F maximum temperature
• 81
  °F minimum temperature
• 
  scattered clouds
• 8
  hours of sunshine
• 9
  UV index (Very High)
• 0
  mm of rainfall expected
• M
  moderate heat & humidity
• 16
  mph wind from E

Back to top

San Juan weather for Monday 20th July 2026

Expect scattered clouds in San Juan, Puerto Rico with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 15 mph from the east.

• 88
  °F maximum temperature
• 81
  °F minimum temperature
• 
  scattered clouds
• 8
  hours of sunshine
• 11
  UV index (Extreme)
• 0
  mm of rainfall expected
• M
  moderate heat & humidity
• 15
  mph wind from E

Back to top

San Juan weather for Tuesday 21st July 2026

Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 77% chance of some rain and a gentle breeze of 11 mph from the north-east.

• 86
  °F maximum temperature
• 79
  °F minimum temperature
• 
  isolated thunderstorms
• 6
  hours of sunshine
• 10
  UV index (Very High)
• 77
  % chance of some rain
• <2
  mm of rainfall expected
• M
  moderate heat & humidity
• 11
  mph wind from NE

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Sale

• Check out best deals on all-inclusive summer sailings
• Book cruises to the Med including 30th Birthday sailings
• Filter deals by departure port, party size & duration

Go to Marella Cruises deal >>

View all Marella Cruises offers

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