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Guaynabo, PR 00971 Weather

It is 88°F and mostly cloudy in Guaynabo, PR 00971, observed at 12:56 PM AST. Today: Scattered Rain Showers, high 86°F, low 78°F. Hourly and 10-day forecast from the National Weather Service. Times are local (AST).

Guaynabo, PR 00971 current weather

88°F

Mostly Cloudy

H 86° / L 78°Feels like 97°

Observed at San Juan, Luis Munoz Marin International Airport (11.4 mi away), 10/30/2026, 12:56 PM AST

Hourly forecast

NWS, updated 10/30/2026, 10:00 AM PT

  1. Now86°20%
  2. 2 PM86°20%
  3. 3 PM85°30%
  4. 4 PM84°30%
  5. 5 PM82°30%
  6. 6 PM81°30%
  7. 7 PM81°30%
  8. 8 PM80°30%
  9. 9 PM80°40%
  10. 10 PM80°40%
  11. 11 PM79°40%
  12. 12 AM79°20%Sat
  13. 1 AM79°20%
  14. 2 AM79°20%
  15. 3 AM78°40%
  16. 4 AM78°40%
  17. 5 AM78°40%
  18. 6 AM79°
  19. 7 AM81°
  20. 8 AM83°
  21. 9 AM84°30%
  22. 10 AM85°30%
  23. 11 AM85°30%
  24. 12 PM86°40%
  25. 1 PM86°40%
  26. 2 PM86°40%
  27. 3 PM85°40%
  28. 4 PM84°40%
  29. 5 PM82°40%
  30. 6 PM81°20%
  31. 7 PM81°20%
  32. 8 PM80°20%
  33. 9 PM80°10%
  34. 10 PM80°10%
  35. 11 PM79°10%
  36. 12 AM79°10%Sun
  37. 1 AM79°10%
  38. 2 AM79°10%
  39. 3 AM78°40%
  40. 4 AM78°40%
  41. 5 AM78°40%
  42. 6 AM79°30%
  43. 7 AM80°30%
  44. 8 AM81°30%
  45. 9 AM83°30%
  46. 10 AM84°30%
  47. 11 AM84°30%
  48. 12 PM85°50%

10-day forecast

Tap a day for details

  • Today10/3040% chance of precipitationLow 78°High 86°

    This Afternoon: Scattered rain showers. Mostly sunny. High near 86, with temperatures falling to around 82 in the afternoon. East southeast wind around 12 mph. Chance of precipitation is 30%.

    Tonight: Scattered rain showers. Mostly cloudy, with a low around 78. Southeast wind 2 to 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

    Scattered Rain Showers
  • Sat10/3140% chance of precipitationLow 78°High 86°

    Saturday: Scattered rain showers. Mostly sunny. High near 86, with temperatures falling to around 82 in the afternoon. East wind 2 to 12 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

    Saturday Night: Scattered rain showers. Partly cloudy, with a low around 78. East northeast wind 3 to 8 mph. Chance of precipitation is 40%.

    Scattered Rain Showers
  • Sun11/160% chance of precipitationLow 78°High 85°

    Sunday: Scattered rain showers before noon, then scattered showers and thunderstorms. Partly sunny, with a high near 85. East northeast wind 3 to 10 mph. Chance of precipitation is 50%.

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind 3 to 7 mph. Chance of precipitation is 60%.

    Scattered Rain Showers
  • Mon11/250% chance of precipitationLow 78°High 86°

    Monday: Isolated rain showers before noon, then scattered showers and thunderstorms. Mostly sunny, with a high near 86. East southeast wind 3 to 12 mph. Chance of precipitation is 50%.

    Monday Night: Isolated rain showers. Partly cloudy, with a low around 78. Southeast wind 5 to 8 mph.

    Scattered Showers And Thunderstorms
  • Tue11/350% chance of precipitationLow 77°High 86°

    Tuesday: Isolated rain showers before noon, then scattered showers and thunderstorms. Mostly sunny, with a high near 86. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.

    Tuesday Night: Scattered rain showers. Partly cloudy, with a low around 77. Chance of precipitation is 30%.

    Scattered Showers And Thunderstorms
  • Wed11/460% chance of precipitationLow 77°High 85°

    Wednesday: Scattered rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    Wednesday Night: Scattered rain showers. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.

    Chance Showers And Thunderstorms
  • Thu11/570% chance of precipitationLow 77°High 86°

    Thursday: Isolated rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 70%.

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 77.

    Chance Showers And Thunderstorms
  • Fri11/6Model blend77% chance of precipitationLow 78°High 89°

    Friday: Rain likely. High near 89°. Low that night near 78°. About 0.22 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blend72% chance of precipitationLow 78°High 89°

    Saturday: Rain likely. High near 89°. Low that night near 78°. About 0.18 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend61% chance of precipitationLow 78°High 89°

    Sunday: Rain likely. High near 89°. Low that night near 78°. About 0.19 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 18.330, -66.120 from the NWS SJU office, updated 10/30/2026, 10:00 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station TJIG (San Juan/Dominicci Arpt, 9 mi), model run 10/30/2026, 10:00 AM AST

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now86°Isolated Rain Showers20%10 mph
  2. 2 PM86°Isolated Rain Showers20%12 mph
  3. 3 PM85°Scattered Rain Showers30%12 mph
  4. 4 PM84°Scattered Rain Showers30%12 mph
  5. 5 PM82°Scattered Rain Showers30%10 mph
  6. 6 PM81°Scattered Rain Showers30%8 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Guaynabo, PR 00971 right now?
The latest observation from San Juan, Luis Munoz Marin International Airport was 88°F and mostly cloudy, reported at 10/30/2026, 12:56 PM AST.
What is the high temperature today in Guaynabo, PR 00971?
The National Weather Service forecast for this afternoon calls for a high near 86°F. Scattered Rain Showers.
Will it rain in Guaynabo, PR 00971 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Guaynabo, PR 00971?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs near 89°F and up to a 77% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Guaynabo, PR 00971 today?
Sunrise is about 6:23 AM AST and sunset is about 5:52 PM AST (calculated for the center of the area, within a few minutes).

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
2.09 in
Snow
--
Ice
--

Nearby hazards

Puerto Rico hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):No risk area over this location in the next 3 days
  • Expected precipitation, next 7 days: Less than 0.01 in
  • River gauges within 40 miles at or above flood stage:
    • Minor floodingSan Juan, La Puntilla Tide Gauge (in MLLW)9 mi
  • Active wildfires within 50 miles: None reported

Drought

By county

Guaynabo Municipio, week of 10/27/2026

80% of the county is in moderate drought or worse.

Tides nearby

NOAA tide stations

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise
6:23 AM
Sunset
5:52 PM
Daylight
11 hr 30 min
Moon
Waning Gibbous 78% lit
First light (civil dawn)
6 AM
Last light (civil dusk)
6:15 PM
Moonrise
10:04 PM
Moonset
10:56 AM

Guaynabo 00971 climate

Climate

Monthly normal temperatures and precipitation from NOAA climate stations.

Other places nearby

Data sources

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About this data

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