Clean Ocean Action · Live

Two Rivers Beach Dashboard

Live water quality, tides, marine forecast, and weather for the Navesink, Shrewsbury, and Sandy Hook shoreline. Plan your beach day, check before you swim.

Updated just now · 2:29 AM ETjust now

Air

73°

Mostly Cloudy

Water

76°

Pleasant

Waves

1.0'

6s period

Low

Wind

12 mph NW

Next Low

2:30 AM

-0.3 ft

goodGood conditions for boating and recreation

Beach conditions

Sep 11, 2:24 AM

Water temperature

76°F

Pleasant

Great swim conditions.

Waves

1.0ft

Small chop6s period · from SSE

Light chop. Comfortable for most boats.

Source: Open-Meteo Marine + NOAA Sandy Hook 8531680

Sun & UV

6:33 AMDay length · 12h 39m7:12 PM

UV index now

Peak today: 6

Low

EPA scale 0–11+

Minimal sun protection needed.

Air quality (US AQI)

Moderate

Dominant: Ground-level ozone

050100150200+

Acceptable. Sensitive groups may consider easing prolonged outdoor exertion.

PM2.5

12.2

µg/m³

PM10

12.3

µg/m³

Ozone

47.0

µg/m³

Current · Rumson, NJ

Overnight

73°F

Mostly Cloudy

Humidity

100%

Dew pt

73°

Wind

12 mph NW

Precip

10%

Detailed outlook

Mostly cloudy, with a low around 69. North wind around 5 mph.

Next 24 hours

7-day outlook

High · Low · Rain %

Overnight

Mostly Cloudy

——

10%

Friday

Partly Sunny

62°83°

14%

Saturday

Mostly Sunny

68°82°

Sunday

Showers And Thunderstorms

66°83°

81%

Monday

Mostly Sunny

60°80°

Tuesday

Mostly Sunny

62°77°

Wednesday

Mostly Sunny then Slight Chance Rain Showers

65°84°

21%

Tides · Sandy Hook

Tide falling

Next Highin 2h 3m

8:32 AM

5.8 ft

Next Lowin 0 min

2:30 AM

-0.3 ft

NOAA Station 8531680 · MLLW datum · Next 24 hours

Water level · Sandy Hook

0.22ft MLLW2:24 AM

Observed NOAA 8531680 · vs 24-hour prediction curve

Waterway conditions

Swimming

Limited data

Best available guidance

Fishing

Good

Best available guidance

Shellfish

Use caution

Official advisory

Bacteria monitoring

Clean Ocean Action · Rally for the Two Rivers

No readings available online.

COA monitors these waterways weekly (May–September) but publishes results at public meetings rather than online. Follow Rally for the Two Rivers on Facebook or visit cleanoceanaction.org for the latest results.

Activity guidance

SwimmingLimited swim data

No current official swim sample data found (often off-season). Check COA and NJ Beaches for latest updates.

FishingFishing looks reasonable

No current official fishing warning. Conditions look relatively stable.

Eating local catchCheck fish consumption limits

An official fish consumption advisory applies here. Check the linked state guidance for species-specific limits.

Official advisories (1)

Fish consumption advisory — Swimming River Reservoir

A state fish consumption advisory applies. Species, age, and meal frequency limits may vary.

Source: NJDEP fish consumption advisories

Supporting conditions

Rain-driven contamination risk

Low — no strong rain signal

River / runoff signal

Moderate — some river influence

Open-water conditions

Calm — no strong marine hazard

Navesink River

Steady

No current reading

Site 01407535

No recent USGS readings.

USGS 01407535

Swimming River (tributary)

Steady

4.77ft

1 AM

Swimming River near Red Bank NJ

USGS 01407500

About

Clean Ocean Action

A 501(c)(3) regional ocean advocacy non-profit working to improve the water quality of the marine waters off the New Jersey/New York coast. This dashboard is built to help the Two Rivers community plan safer days on the water during the summer season.

Donate to COA Get involved Rally for the Two Rivers

Data sources

Real-time conditions

Live feeds

National Weather Service

Current conditions, hourly forecast, marine outlook, alerts

NOAA Tides & Currents

Tide predictions, water level, water + air temp · Station 8531680

Open-Meteo Marine

Wave height, period, sea surface temperature

Open-Meteo Forecast

UV index forecast (today + tomorrow peak)

Open-Meteo Air Quality

US AQI, PM2.5, PM10, ground-level ozone

USGS Water Services

River gauge heights · Navesink, Swimming, Shrewsbury

Advisories & monitoring

Weekly · seasonal

Clean Ocean Action – Rally for the Two Rivers

Enterococcus & E. coli weekly testing (May–Sept)

NJ DEP Harmful Algal Bloom notices

Official bloom alerts for local waterways

NJ Beaches / NJDEP beach monitoring

Official beach advisories & closures

This dashboard aggregates publicly available data from NOAA, NWS, USGS, NJDEP, Open-Meteo, and Clean Ocean Action. It is not a substitute for official advisories. Always check NJBeaches.org and Clean Ocean Action before entering the water.