78°
Sunny
1%
82
St. Mary's County, MD · Patuxent River
Greenwell State Park
25420 Rosedale Manor Ln, Hollywood, MD 20636
A 596-acre working-farm state park with about a mile of Patuxent River shoreline, a small sandy beach, and miles of hiker/biker/equestrian trails. One of the few Maryland parks with on-site therapeutic horseback riding.
Today's Conditions
Ideal for a beach walk.
High nettle risk · 78°F air · 71°F water
Full NWS forecast for This Afternoon
Sunny, with a high near 78. North wind around 8 mph.
Tonight
Clear, with a low around 61. Southwest wind 2 to 6 mph.
Weather
- 78°F air — ideal beach weather
- Sunny skies — clear conditions
Water
- 71°F water — swimmable, refreshing
- High nettle risk — 2224% probability — reconsider swimming
72 /100
great
42 Swim
83 Sunbathe
87 Walk
73 Fish
80 Photo
Best for walking today
Atmosphere
Air Temp
78°F
Clear
Wind
8 mph
N
Rain
1%
This Afternoon
UV Peak
8 Very High
High 11 AM–03 PM · burn in ~25m
Burn-free before 09 AM & after 06 PM
Tomorrow
83°F
Sunny
Water
Water Temp
71°F
Refreshing
Next Low Tide
11:09 PM
0.3 ft · in 1.8h
Sea Nettles
High nettle risk
2224% probability · Gooses Reef buoy
Water Quality
Clean
10 MPN/100mL · Enterococcus
USGS · sampled 9mo ago
Sun & Moon
Sunrise
5:43 AM
Sunset
8:25 PM
Moon · 88%
Waning Gibbous
Neap tides — smaller range
Today's Tides
7-day chart →| Time | Type | Height |
|---|---|---|
| 4:53 AM | High | 1.5 ft |
| 11:35 AM | Low | 0.5 ft |
| 5:05 PM | High | 1.2 ft |
| 11:09 PM | Low | 0.3 ft |
7-Day Beach Day Forecast
83°
Sunny
0%
84
88°
Sunny
0%
82
90°
Mostly Sunny
3%
74
88°
Slight Chance Rain Showers then Chance Showers And Thunderstorms
53%
33
75°
Slight Chance Rain Showers
20%
72
75°
Slight Chance Rain Showers
21%
72
What to Bring Today
- critical SPF 50 sunscreen UV index 8 — very high
- recommended Umbrella or shade warm day, light wind
Always remember water bottle, trash bag (leave no trace).
Best Fishing Times Today
Solunar theory: fish activity peaks at moon transits (major) and moonrise/moonset (minor). All times local.
Minor
10:30 PM - 11:30 PM
Major
2:30 AM - 4:30 AM
Minor
7:40 AM - 8:40 AM
Major
2:50 PM - 4:50 PM
Beach Info
Parking
Free lot near the Rosedale Manor House; short walk to the water.
Dogs
Leashed dogs welcome on trails and beach year-round.
Entry Fee
Free
Address
25420 Rosedale Manor Ln, Hollywood, MD 20636
Amenities
7-Day Tide Chart →
Full high/low predictions for the next week at Greenwell State Park.
7-Day Weather →
Extended forecast for Greenwell State Park from the National Weather Service.
Frequently Asked
Is Greenwell State Park dog-friendly?
Leashed dogs welcome on trails and beach year-round.
Is there an entry fee at Greenwell State Park?
Entry to Greenwell State Park is free.
Are there lifeguards at Greenwell State Park?
No lifeguards are stationed at Greenwell State Park. Swim at your own risk and keep close watch on children.
What amenities are at Greenwell State Park?
Amenities at Greenwell State Park include beach, trails, picnic area, restrooms, kayak launch, horseback riding.
When is the water warmest at Greenwell State Park?
The Patuxent warms through July to highs around 78-82°F. Best swimming window is late June through early September.
Where is Greenwell State Park located?
Greenwell State Park is in St. Mary's County, MD, at 25420 Rosedale Manor Ln, Hollywood, MD 20636.
Nearby Beaches
Updated · Data from NOAA, NWS