81°
Sunny
1%
84
Harford County, MD · Chesapeake Bay
Mariner Point Park
100 Kearney Dr, Joppa, MD 21085
A 107-acre Harford County park at the confluence of the Gunpowder and Little Gunpowder Rivers. Wooded trails, a kayak launch, fishing pier, dog park, and small shoreline spots for wading. No designated swim beach — one of the best paddling put-ins on the upper Bay.
Today's Conditions
Ideal for a beach walk.
High nettle risk · 81°F air · 69°F water
Full NWS forecast for This Afternoon
Sunny, with a high near 81. Northeast wind around 3 mph.
Tonight
Clear, with a low around 59. Northwest wind around 2 mph.
Weather
- 81°F air — ideal beach weather
- Sunny skies — clear conditions
Water
- 69°F water — swimmable, refreshing
- High nettle risk — 348% probability — reconsider swimming
65 /100
good
44 Swim
85 Sunbathe
88 Walk
67 Fish
80 Photo
Best for walking today
Atmosphere
Air Temp
81°F
Clear
Wind
3 mph
NE
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
85°F
Sunny
Water
Water Temp
69°F
Refreshing
Sea Nettles
High nettle risk
348% probability · Baltimore Harbor buoy
Water Quality
Clean
10 MPN/100mL · Enterococcus
USGS · sampled 9mo ago
Sun & Moon
Sunrise
5:39 AM
Sunset
8:27 PM
Moon · 88%
Waning Gibbous
Neap tides — smaller range
Today's Tides
7-day chart →| Time | Type | Height |
|---|---|---|
| 4:29 AM | Low | 0.5 ft |
| 11:04 AM | High | 1.9 ft |
| 6:19 PM | Low | 0.1 ft |
7-Day Beach Day Forecast
85°
Sunny
0%
84
88°
Mostly Sunny
0%
82
90°
Mostly Sunny
6%
74
86°
Chance Showers And Thunderstorms
44%
33
76°
Slight Chance Rain Showers
20%
72
78°
Slight Chance Rain Showers
17%
78
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.
Dogs
Leashed dogs permitted throughout park; separate fenced dog park on-site.
Entry Fee
Free
Address
100 Kearney Dr, Joppa, MD 21085
Amenities
7-Day Tide Chart →
Full high/low predictions for the next week at Mariner Point Park.
7-Day Weather →
Extended forecast for Mariner Point Park from the National Weather Service.
Frequently Asked
Is Mariner Point Park dog-friendly?
Leashed dogs permitted throughout park; separate fenced dog park on-site.
Is there an entry fee at Mariner Point Park?
Entry to Mariner Point Park is free.
Are there lifeguards at Mariner Point Park?
No lifeguards are stationed at Mariner Point Park. Swim at your own risk and keep close watch on children.
What amenities are at Mariner Point Park?
Amenities at Mariner Point Park include dog park, kayak launch, fishing pier, trails, playground, restrooms, disc golf.
When is the water warmest at Mariner Point Park?
The Chesapeake warms quickly — water temperatures peak in late July and August, typically 78-82°F. Swimming comfortable from mid-June through September.
Where is Mariner Point Park located?
Mariner Point Park is in Harford County, MD, at 100 Kearney Dr, Joppa, MD 21085.
Nearby Beaches
Updated · Data from NOAA, NWS