Santa Isabel, Puerto Rico Weather

Santa Isabel Barrio-Pueblo9:40 AM AST17.97°N, 66.40°WElevation 23 ft

Current conditions

Partly Cloudy
86°
Partly Cloudy
Feels like 97°
High 90°·Low 76°
WindE 5 mph
Humidity75%
Dew point77°
Pressure29.93 inHg
Visibility10.0 mi
Cloud cover50%
UV index4 Moderate
Sunrise6:21 AM
Sunset6:00 PM

Observed at Ponce, Mercedita Airport · 45 min ago

Forecast

10-day

  • Wednesday

    Scattered rain showers before 3pm. Mostly sunny. High near 90, with temperatures falling to around 83 in the afternoon. East wind 5 to 10 mph. Chance of precipitation is 40%.

  • Wednesday Night

    Scattered rain showers before midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East wind around 7 mph. Chance of precipitation is 60%.

  • Thursday

    A chance of showers and thunderstorms. Partly sunny, with a high near 90. East southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

National Weather Service forecast updated 1 day ago.

Hourly

Hourly forecast
  1. Now Scattered Rain Showers 86°30%
  2. 10 AM Scattered Rain Showers 88°30%
  3. 11 AM Scattered Rain Showers 89°30%
  4. 12 PM Isolated Rain Showers 90°10%
  5. 1 PM Isolated Rain Showers 90°10%
  6. 2 PM Isolated Rain Showers 90°10%
  7. 3 PM Sunny 89°
  8. 4 PM Sunny 86°
  9. 5 PM Sunny 83°
  10. 6 PM Scattered Rain Showers 82°40%
  11. 7 PM Scattered Rain Showers 81°40%
  12. 8 PM Scattered Rain Showers 80°40%
  13. 9 PM Scattered Rain Showers 80°40%
  14. 10 PM Scattered Rain Showers 79°40%
  15. 11 PM Scattered Rain Showers 78°40%
  16. Thu12 AM Chance Showers And Thunderstorms 78°60%
  17. 1 AM Chance Showers And Thunderstorms 78°60%
  18. 2 AM Chance Showers And Thunderstorms 77°60%
  19. 3 AM Chance Showers And Thunderstorms 77°60%
  20. 4 AM Chance Showers And Thunderstorms 76°60%
  21. 5 AM Chance Showers And Thunderstorms 76°60%
  22. 6 AM Chance Showers And Thunderstorms 78°60%
  23. 7 AM Chance Showers And Thunderstorms 81°60%
  24. 8 AM Chance Showers And Thunderstorms 84°60%

10-day forecast

Details
  1. TueOct 20 Scattered Rain Showers then Mostly Sunny Scattered Rain Showers then Mostly Sunny30%76°90°
  2. TodayOct 21 Scattered Rain Showers Scattered Rain Showers60%76°90°
  3. ThuOct 22 Chance Showers And Thunderstorms Chance Showers And Thunderstorms60%77°90°
  4. FriOct 23 Scattered Rain Showers Scattered Rain Showers50%77°90°
  5. SatOct 24 Scattered Rain Showers Scattered Rain Showers40%77°90°
  6. SunOct 25 Scattered Rain Showers Scattered Rain Showers40%76°90°
  7. MonOct 26 Scattered Rain Showers Scattered Rain Showers40%76°90°
  8. TueOct 27 Rain Rain0.08 in71°90°
  9. WedOct 28 Light showers Light showers0.07 in73°93°
  10. ThuOct 29 Showers Showers0.08 in73°92°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news

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Air quality

53
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Catano, PR reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 6:21 AM
Sunset 6:00 PM
Daylight 11 h 39 min (−0 min 57 s tomorrow)
Waxing Gibbous · 77% lit
Moonrise 2:57 PM Moonset 2:08 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low91° / 68°
Record high94° (2025)
Record low64° (2016)
Wettest3.03 in (1990)
Month to date4.20 in (normal 3.75 in)

Ponce 4 E, records since 1898. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in SJU, issued 8 hrs ago

Key Messages

Issued at 140 AM AST Wed Oct 21 2026

* A relatively quiet and warm day will give way to wetter conditions as a surge of tropical moisture sweeps across the region Thursday through the weekend. More frequent showers and thunderstorms, including nighttime activity, may produce lightning, gusty winds, and locally heavy rainfall capable of causing flooding.

* A high risk of rip currents continues through this afternoon as northerly swell subsides. Conditions briefly improve Thursday before another swell brings renewed rip current hazards and potentially hazardous seas for small craft Friday into the weekend.

* Warm temperatures today may affect individuals sensitive or vulnerable to heat. Another period of warmer weather is possible Sunday into Monday.

Aviation

(06Z TAFS) Issued at 140 AM AST Wed Oct 21 2026

Strong, slow-moving TSRA over the Atl waters N of PR should gradually diminish aft sunrise, with VCSH/VCTS psbl near TJSJ/TJPS and USVI terminals. VFR conds expected to prevail overnight. Aftn SHRA/TSRA may produce brief MVFR/IFR cigs/vsbys at TJSJ/TJBQ, mainly due to +RA and low cigs. Activity should diminish aft 21/23Z. Sfc winds light/VRB overnight, bcmg SE at 5-10 kt aft 21/13Z, with sea-breeze variations and locally gusty winds near TSRA.

Marine

Issued at 140 AM AST Wed Oct 21 2026

Light to gentle southeasterly winds will gradually become more easterly and increase to moderate to locally fresh speeds toward the end of the week and into the weekend, particularly across the Caribbean waters. A long-period northerly swell continues to subside, allowing seas to gradually improve. However, another swell arriving Friday will likely bring hazardous seas for small craft through the weekend and into early next week. Increasing tropical moisture will also favor more frequent showers and thunderstorms, including nighttime activity, with lightning, gusty winds, and reduced visibility.

Beach Forecast

Issued at 140 AM AST Wed Oct 21 2026

A High Risk of Rip Currents remains in effect through this afternoon along north-facing beaches of Puerto Rico, Culebra, St. Thomas, and St. John. Conditions should briefly improve as the current northerly swell subsides. However, another swell arriving Friday will likely bring a renewed high risk of rip currents and possible high surf impacts along exposed northern beaches through the weekend and into early next week. Beachgoers should avoid swimming at affected beaches and stay away from exposed rocks and jetties. Showers and thunderstorms may also bring lightning and gusty winds to coastal areas.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.