Weather for San Juan, Puerto Rico
Current Weather
Humidity: 66%
Feels Like: 103.2°F
Wind: E 17 mph
Wind Gusts: 20.6 mph
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 9 mi
UV Index: 3.5
Five Day Weather Forecast
Tue
H: 86°F
L: 79°F
Wed
H: 87°F
L: 78°F
Thu
H: 89°F
L: 80°F
Fri
H: 85°F
L: 79°F
Sat
H: 86°F
L: 76°F
Air Quality
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 41 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 7:04 PM
Daylight: 13 hrs 8 mins
Moon Transit: 12:00 AM
Moonset: 10:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
10:13 PM - 11:43 PM9:45 AM - 11:15 AM
Action Rating: 2 out of 5
Heat Advisory issued July 15 at 11:44AM AST until July 15 at 4:00PM AST by NWS San Juan PR
Effective: Tue July 15, 2025, 11:44 AM
Expires: Tue July 15, 2025, 4:00 PM
* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 15 at 11:44AM AST until July 15 at 4:00PM AST by NWS San Juan PR
Effective: Tue July 15, 2025, 11:44 AM
Expires: Tue July 15, 2025, 4:00 PM
* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 15 at 11:44AM AST until July 15 at 4:00PM AST by NWS San Juan PR
Effective: Tue July 15, 2025, 11:44 AM
Expires: Tue July 15, 2025, 4:00 PM
* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 15 at 11:44AM AST until July 15 at 4:00PM AST by NWS San Juan PR
Effective: Tue July 15, 2025, 11:44 AM
Expires: Tue July 15, 2025, 4:00 PM
* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Heat Advisory issued July 15 at 11:44AM AST until July 15 at 4:00PM AST by NWS San Juan PR
Effective: Tue July 15, 2025, 11:44 AM
Expires: Tue July 15, 2025, 4:00 PM
* WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Weather Forecast
Average Temperature: 81.8°F
Average Humidity: 82%
Wind: 17 mph
UV Index: 3
Air Quality
Nitrogen Dioxide: 0.84 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 43.36 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 7:04 PM
Daylight: 13 hrs 8 mins
Moon Transit: 12:00 AM
Moonset: 10:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
10:13 PM - 11:43 PM9:45 AM - 11:15 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 82.5°F
Average Humidity: 83%
Wind: 17 mph
UV Index: 3
Air Quality
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 37.08 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 7:04 PM
Daylight: 13 hrs 7 mins
Moon Transit: 1:15 AM
Moonset: 11:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%
Best Times for Fishing or Hunting
Major Periods
12:45 AM - 3:15 AM12:45 AM - 3:15 AM
Minor Periods
12:00 AM - 12:00 AM10:40 AM - 12:10 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 83.6°F
Average Humidity: 83%
Wind: 16.1 mph
UV Index: 2.7
Air Quality
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 32.56 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 7:04 PM
Daylight: 13 hrs 7 mins
Moon Transit: 5:41 AM
Moonset: 12:08 AM
Moon Phase: Last Quarter
Moon Illumination: 44.4%
Best Times for Fishing or Hunting
Major Periods
5:11 AM - 7:41 AM8:53 PM - 11:23 PM
Minor Periods
11:38 AM - 1:08 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 81.8°F
Average Humidity: 78%
Wind: 16.1 mph
UV Index: 2.6
Air Quality
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 35.64 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 7:04 PM
Daylight: 13 hrs 6 mins
Moon Transit: 6:30 AM
Moonset: 1:07 PM
Moon Phase: Last Quarter
Moon Illumination: 33.4%
Best Times for Fishing or Hunting
Major Periods
6:00 AM - 8:30 AM12:00 AM - 12:00 AM
Minor Periods
12:37 AM - 2:07 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 81°F
Average Humidity: 75%
Wind: 18.1 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 34.77 μg/m3
Astronomical
Sun Transit: 12:30 AM
Sunset: 7:04 PM
Daylight: 13 hrs 6 mins
Moon Transit: 7:24 AM
Moonset: 2:10 PM
Moon Phase: Last Quarter
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
6:54 AM - 9:24 AM12:00 AM - 12:00 AM
Minor Periods
1:40 PM - 3:10 PM12:13 AM - 1:43 AM
Action Rating: 2 out of 5