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Lago de Matrullas is one of the reservoirs LakeRadar tracks in Puerto Rico. Fish documented in the area include Redear Sunfish and Largemouth Bass. It covers roughly 77 surface acres. LakeRadar pulls readings from a mapped water gauge, so current water data is shown when the station reports. For this location, LakeRadar tracks an hourly and 7-day forecast, wind and gust outlook, water readings, fishing conditions, and activity scores for boating, paddling, and swimming. Other waters in the region include Lago El Guineo, Lago Toa Vaca, and Lago Adjuntas. Use the conditions and forecast on this page to decide when to go boating, fishing, or paddling at Lago de Matrullas.
Updated
No active alerts for this lake as of the last check (Oct 11, 1:00 PM AST). Alerts are re-checked automatically; see the official source for updates.
Overall Poor (46/100) across 4 activities. Best right now: Kayaking (48/100).
How the score is calculated →Best good fishing window, averaging 88/100 across these hours. Wind 5 mph from the northeast. Dawn hours (05:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 73° | 66° | 67° | 69° | 69° | 67° | 65° | 65° | 65° | 65° | 65° | 65° | 65° | 65° | 65° | 65° | 65° | 66° | 67° | 69° | 72° | 75° | 76° | 77° |
| Wind (kts) | 7 | 3 | 5 | 6 | 4 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 5 | 3 | 2 | 4 | 5 | 6 | 5 |
| Direction | SE | E | SE | SE | SE | SE | SE | SE | E | E | E | NE | NE | NE | NE | NE | NE | NE | NE | SE | E | SE | SE | SE |
| Gusts (kts) | 21 | 22 | 18 | 19 | 20 | 15 | 10 | 10 | 11 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 16 | 17 | 18 | 15 | 16 | 17 | 17 | 17 |
| Precip % | 72% | 84% | 92% | 96% | 92% | 73% | 45% | 22% | 10% | 4% | 0% | 0% | 0% | 0% | 1% | 1% | 2% | 2% | 2% | 4% | 8% | 14% | 25% | 44% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Sun, 1 PM AST | 73°F | 8 mph SE (139°) | 24 mph | 72% | 97% | Drizzle |
| Sun, 2 PM AST | 66°F | 3 mph E (84°) | 25 mph | 84% | 100% | Thunderstorm |
| Sun, 3 PM AST | 67°F | 6 mph SE (142°) | 21 mph | 92% | 49% | Rain Showers |
| Sun, 4 PM AST | 69°F | 7 mph ESE (119°) | 22 mph | 96% | 76% | Drizzle |
| Sun, 5 PM AST | 69°F | 5 mph ESE (117°) | 23 mph | 92% | 37% | Mainly Clear |
| Sun, 6 PM AST | 67°F | 2 mph SE (129°) | 17 mph | 73% | 9% | Clear Sky |
| Sun, 7 PM AST | 65°F | 2 mph SE (129°) | 12 mph | 45% | 9% | Clear Sky |
| Sun, 8 PM AST | 65°F | 2 mph ESE (122°) | 12 mph | 22% | 3% | Clear Sky |
| Sun, 9 PM AST | 65°F | 3 mph E (92°) | 13 mph | 10% | 1% | Clear Sky |
| Sun, 10 PM AST | 65°F | 3 mph E (81°) | 15 mph | 4% | 1% | Clear Sky |
| Sun, 11 PM AST | 65°F | 3 mph ENE (73°) | 15 mph | 0% | 2% | Clear Sky |
| Mon, 12 AM AST | 65°F | 4 mph ENE (61°) | 15 mph | 0% | 3% | Clear Sky |
| Mon, 1 AM AST | 65°F | 4 mph NE (55°) | 16 mph | 0% | 3% | Clear Sky |
| Mon, 2 AM AST | 65°F | 4 mph NE (56°) | 16 mph | 0% | 9% | Clear Sky |
| Mon, 3 AM AST | 65°F | 4 mph NE (47°) | 16 mph | 1% | 8% | Clear Sky |
| Mon, 4 AM AST | 65°F | 4 mph NE (45°) | 17 mph | 1% | 18% | Clear Sky |
| Mon, 5 AM AST | 65°F | 5 mph NE (49°) | 18 mph | 2% | 37% | Mainly Clear |
| Mon, 6 AM AST | 66°F | 6 mph NE (44°) | 20 mph | 2% | 55% | Partly Cloudy |
| Mon, 7 AM AST | 67°F | 4 mph ENE (61°) | 21 mph | 2% | 55% | Partly Cloudy |
| Mon, 8 AM AST | 69°F | 2 mph SE (143°) | 17 mph | 4% | 48% | Mainly Clear |
| Mon, 9 AM AST | 72°F | 5 mph ESE (102°) | 18 mph | 8% | 21% | Mainly Clear |
| Mon, 10 AM AST | 75°F | 6 mph ESE (121°) | 19 mph | 14% | 32% | Drizzle |
| Mon, 11 AM AST | 76°F | 7 mph SE (127°) | 20 mph | 25% | 27% | Drizzle |
| Mon, 12 PM AST | 77°F | 6 mph SE (139°) | 20 mph | 44% | 30% | Drizzle |
| Mon, 1 PM AST | 77°F | 6 mph SSE (161°) | 19 mph | 67% | 100% | Drizzle |
Official National Weather Service hourly forecast. Showing 10 of 25 hours. Wind arrows point the way the wind is blowing; the compass point and degrees show where it comes from.
| Period | This Afternoon October 11, 2026 | Tonight October 11, 2026 | Columbus Day October 12, 2026 | Monday Night October 12, 2026 | Tuesday October 13, 2026 | Tuesday Night October 13, 2026 | Wednesday October 14, 2026 | Wednesday Night October 14, 2026 | Thursday October 15, 2026 | Thursday Night October 15, 2026 | Friday October 16, 2026 | Friday Night October 16, 2026 | Saturday October 17, 2026 | Saturday Night October 17, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 74° | 68° | 74° | 69° | 74° | 69° | 75° | 70° | 75° | 68° | 75° | 69° | 75° | 69° |
| Wind | SE 9 mph | ESE 3 to 7 mph | ESE 3 to 7 mph | E 1 to 5 mph | ENE 5 mph | NE 5 mph | E 3 to 8 mph | ENE 1 to 5 mph | ENE 1 to 8 mph | ENE 2 to 6 mph | ENE 2 to 8 mph | ENE 2 to 6 mph | E 2 to 8 mph | ESE 6 mph |
| Gusts | 25 mph | 18 mph | 21 mph | 16 mph | 24 mph | 13 mph | 18 mph | 16 mph | 22 mph | 16 mph | 18 mph | 14 mph | 17 mph | 15 mph |
| Precip % | 50% | 10% | 80% | 10% | 80% | 5% | 70% | 9% | 60% | 8% | 60% | 2% | 60% | 2% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Lago de Matrullas. Not available from a verified source for this lake.
Poor for fishing (45/100), from 5 available inputs. Supporting this: Wind 8 mph from the southeast. Air temperature 73°F. Working against it: 72% chance of precipitation is likely. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Poor for boating (47/100), from 4 available inputs. Supporting this: Wind 8 mph from the southeast. No active official alerts for this lake. Working against it: 72% chance of precipitation is likely. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
Poor for sailing (46/100), from 4 available inputs. Supporting this: Wind 8 mph from the SE is in the preferred sailing range. No active official alerts for this lake. Working against it: 72% chance of precipitation is likely. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Poor for kayaking (48/100), from 5 available inputs. Supporting this: Wind 8 mph from the southeast. No active official alerts for this lake. Working against it: 72% chance of precipitation is likely. The forecast mentions thunderstorms, which carries a risk penalty. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of PR Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Surrounded by the natural landscapes of PR, Lago de Matrullas is an appealing freshwater reservoir welcoming outdoor recreation across all seasons. The lake provides critical habitat for native fish species and serves as a focal point for regional boating. Visitors should review current access fees, ramp operational status, and state licensing rules.
Valid state fishing license issued by PR wildlife conservation authorities is required for all sport angling. Check local daily bag limits.
Current motorized watercraft registration mandatory. Practice Clean, Drain & Dry protocols: drain all livewells and inspect props before launching. Life jackets required for all passengers.
Public shoreline and boating access managed by State & Local Authorities. Verify seasonal gate hours, launch fees, and parking rules before travel.
Low-wake cruising, electric-troll fishing craft, and quiet-water exploration. Target gamefish include Redear Sunfish, Largemouth Bass. Morning hours typically provide optimal glassy conditions for kayak and stand-up paddleboard (SUP) touring.
Warm water temperatures, peak swimming, active watersports, and open full-service campgrounds. Highest weekly attendance; plan early arrivals on summer weekends.
Spring pre-spawn and fall feeding transitions create prime trophy angling conditions. Cooler air, lower boat traffic, and vibrant seasonal shoreline foliage.
Mild year-round outdoor climate. Uncrowded waters, active winter bass and crappie fishing, and open year-round boat launch access.
NWS API Web Service · License: U.S. Government work · Attribution: Data provided by the National Weather Service (api.weather.gov)
Updated
Scores are heuristics, not safety guarantees. LakeRadar scores summarize available conditions and are not a substitute for official warnings, local rules, or on-water judgment.
All telemetry for Lago de Matrullas is synchronized directly from authorized federal and state monitoring networks (USGS, NWS, NOAA, and state environmental authorities). Observations are strictly instrumented readings — unmonitored sensors are transparently disclosed rather than synthetic estimates.
Last source audit: Oct 11, 1:00 PM AST