Plum Island Beach, NH
Beach Alerts
High Tide Alert
High Tide Alert: Extreme high tide at 1:42 PM — beach access very limited
Crowd Alert
Crowd Alert: Beach at capacity from 2 PM-4 PM — consider alternative times
About This Beach
Plum Island Beach offers a unique blend of natural beauty and a relaxed atmosphere. The meeting of the Merrimack River and the Atlantic Ocean creates a dynamic environment with varying water conditions and expansive sandy areas. While facilities are available (though inconsistent), the beach often provides a less crowded experience compared to other nearby beaches, particularly during off-peak times. The stunning sunsets are a major draw.
*Click a parking icon on the map to draw the shortest path to the nearest entrance.
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Beach Overview
Amenities
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Weather Forecast
Updated: 4/19/2026, 9:15:00 AM
Hourly
| Time | Air Temp | UV | Wind | Rain |
|---|---|---|---|---|
| 09:00 | 45° | 2 | 4 mph | 0 |
| 10:00 | 45° | 1 | 6 mph | 0 |
| 11:00 | 46° | 1 | 5 mph | 0.03 |
| 12:00 | 46° | 1 | 4 mph | 0.02 |
| 13:00 | 48° | 1 | 3 mph | 0 |
| 14:00 | 49° | 1 | 11 mph | 0 |
| 15:00 | 47° | 0 | 18 mph | 0.04 |
Surf Conditions
Updated: Updated: 4/19/2026, 9:15:00 AM
Hourly Surf
| Time | Temp | Wave | Period | Swell | Tide |
|---|---|---|---|---|---|
| 09:00 | 47°F | 3.3 ft | 7s | → E | -4.0 ft |
| 10:00 | 47°F | 3.4 ft | 7s | → E | -1.1 ft |
| 11:00 | 47°F | 3.4 ft | 7s | → E | +1.6 ft |
| 12:00 | 47°F | 3.4 ft | 7s | → E | +3.1 ft |
| 13:00 | 47°F | 3.4 ft | 7s | → E | +3.5 ft |
| 14:00 | 47°F | 3.4 ft | 7s | → E | +2.9 ft |
| 15:00 | 47°F | 3.4 ft | 7s | → E | +1.1 ft |