60°
Sunny
0%
62
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
Great day for a beach walk.
60°F air
Full NWS forecast for This Afternoon
Sunny, with a high near 60. Northwest wind 12 to 15 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 42. Northwest wind around 15 mph, with gusts as high as 28 mph.
Weather
- 60°F air — chilly for a beach day
- Sunny skies — clear conditions
Water
- 63°F water — chilly — expect a gasp entering
62 /100
good
57 Swim
51 Sunbathe
71 Walk
61 Fish
71 Photo
Best for walking today
Atmosphere
Air Temp
60°F
Clear
Wind
12 to 15 mph
NW
Rain
0%
This Afternoon
Air Quality
29 Good
Ozone · Lower Eastern Shore
UV Peak
3 Moderate
Peaks 12 PM · burn in ~67m
Burn-free before 11 AM & after 02 PM
Tomorrow
63°F
Sunny
Water
Water Temp
63°F
Cold
Next Low Tide
7:07 PM
0.3 ft · in 34m
Sun & Moon
Sunrise
6:38 AM
Sunset
5:00 PM
Moon · 5%
Waning Crescent
Spring tides — bigger range
Tides
| Time | Type | Height |
|---|---|---|
| 12:06 AM | High | 1.4 ft |
| 6:28 AM | Low | 0.1 ft |
| 12:38 PM | High | 1.6 ft |
| 7:07 PM | Low | 0.3 ft |
| Time | Type | Height |
|---|---|---|
| 12:47 AM | High | 1.4 ft |
| 7:09 AM | Low | 0.1 ft |
| 1:22 PM | High | 1.5 ft |
| 7:51 PM | Low | 0.3 ft |
| Time | Type | Height |
|---|---|---|
| 1:28 AM | High | 1.4 ft |
| 7:49 AM | Low | 0.1 ft |
| 2:03 PM | High | 1.5 ft |
| 8:33 PM | Low | 0.3 ft |
| Time | Type | Height |
|---|---|---|
| 2:09 AM | High | 1.3 ft |
| 8:27 AM | Low | 0.1 ft |
| 2:44 PM | High | 1.5 ft |
| 9:15 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 2:49 AM | High | 1.3 ft |
| 9:07 AM | Low | 0.1 ft |
| 3:25 PM | High | 1.4 ft |
| 9:57 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 3:31 AM | High | 1.3 ft |
| 9:47 AM | Low | 0.2 ft |
| 4:07 PM | High | 1.4 ft |
| 10:40 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 4:13 AM | High | 1.2 ft |
| 10:30 AM | Low | 0.2 ft |
| 4:50 PM | High | 1.3 ft |
| 11:25 PM | Low | 0.4 ft |
High/low predictions from NOAA station 8577330, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
63°
Sunny
0%
63
63°
Sunny
0%
60
66°
Sunny
0%
68
65°
Sunny
0%
67
61°
Chance Light Rain
41%
45
54°
Chance Light Rain
46%
33
What to Bring Today
- recommended Wetsuit or expect a chill Water is 63°F
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.
Major
9:10 PM - 11:10 PM
Minor
4:40 AM - 5:40 AM
Major
9:30 AM - 11:30 AM
Minor
3:30 PM - 4:30 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
Frequently Asked
Is it safe to swim at Greenwell State Park today?
Greenwell State Park shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.
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