83°
Sunny
0%
57
Sussex County, DE · Atlantic Ocean
Dewey Beach
Delaware's party beach, just south of Rehoboth. Small town, big nightlife, young crowd. Also unusually dog-friendly for an Atlantic beach — dogs allowed year-round with off-leash hours early morning and late evening in summer.
Today's Conditions
Great day for a beach walk.
NWS alert active · 78°F water · 83°F air
Full NWS forecast for This Afternoon
Sunny, with a high near 83. South wind 15 to 20 mph.
Tonight
Mostly clear, with a low around 74. Southwest wind 15 to 20 mph.
Weather
- 83°F air — ideal beach weather
- 20 mph wind — breezy — anchor everything
- Sunny skies — clear conditions
Water
- 78°F water — warm — full-day swim weather
Safety
- NWS alert active — small craft advisory issued september 9 at 1:09pm edt until september 10 at 10:00am edt by nws mount holly nj
57 /100
good
42 Swim
66 Sunbathe
80 Walk
75 Photo
Best for walking today
Small Craft Small Craft Advisory
Small Craft Advisory issued September 9 at 1:09PM EDT until September 10 at 10:00AM EDT by NWS Mount Holly NJ
Full NWS statement
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 ft expected. * WHERE...Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM and Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM. * WHEN...Until 10 AM EDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.
Atmosphere
Air Temp
83°F
Clear
Wind
15 to 20 mph
S
Rain
0%
This Afternoon
UV Peak
8 Very High
High 12 PM–02 PM · burn in ~25m
Burn-free before 09 AM & after 05 PM
Tomorrow
84°F
Sunny
Water
Water Temp
78°F
Swimming weather
Next High Tide
8:15 PM
5.2 ft · in 58m
Wave Height
3.3 ft
4s · SW swell
Barometer
29.87 inHg
1012 hPa · buoy 44009
Water Quality
Clean
20 #/100mL · Enterococcus
USGS · sampled 8d ago
Rip Current Risk · Regional Reference
No zone-specific NWS forecast for this beach (ANZ455)
The PHI office's Surf Zone Forecast doesn't cover this beach's forecast zone directly. Nearby coastal zones it does cover are listed below — regional reference only, not a substitute for the conditions at this specific beach.
- NJZ014 Eastern Monmouth — Sandy Hook Low
- NJZ026 Coastal Ocean — Long Beach Island Low
- NJZ025 Coastal Atlantic — Atlantic City Low
- NJZ024 Atlantic Coastal Cape May — Ocean City Low
- DEZ004 Delaware Beaches — Rehoboth Beach Low
Sun & Moon
Sunrise
6:36 AM
Sunset
7:19 PM
Moon · 5%
Waning Crescent
Spring tides — bigger range
Tides
| Time | Type | Height |
|---|---|---|
| 1:40 AM | Low | 0.4 ft |
| 7:50 AM | High | 4.4 ft |
| 1:40 PM | Low | 0.2 ft |
| 8:15 PM | High | 5.2 ft |
| Time | Type | Height |
|---|---|---|
| 2:28 AM | Low | 0.2 ft |
| 8:41 AM | High | 4.7 ft |
| 2:34 PM | Low | 0.1 ft |
| 9:03 PM | High | 5.2 ft |
| Time | Type | Height |
|---|---|---|
| 3:10 AM | Low | 0.1 ft |
| 9:27 AM | High | 4.9 ft |
| 3:24 PM | Low | 0.0 ft |
| 9:48 PM | High | 5.0 ft |
| Time | Type | Height |
|---|---|---|
| 3:50 AM | Low | 0.1 ft |
| 10:11 AM | High | 5.0 ft |
| 4:10 PM | Low | 0.1 ft |
| 10:30 PM | High | 4.8 ft |
| Time | Type | Height |
|---|---|---|
| 4:28 AM | Low | 0.2 ft |
| 10:52 AM | High | 5.0 ft |
| 4:55 PM | Low | 0.3 ft |
| 11:11 PM | High | 4.5 ft |
| Time | Type | Height |
|---|---|---|
| 5:06 AM | Low | 0.4 ft |
| 11:34 AM | High | 4.9 ft |
| 5:41 PM | Low | 0.5 ft |
| 11:52 PM | High | 4.2 ft |
| Time | Type | Height |
|---|---|---|
| 5:46 AM | Low | 0.6 ft |
| 12:16 PM | High | 4.8 ft |
| 6:30 PM | Low | 0.8 ft |
High/low predictions from NOAA station 8557380, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
84°
Sunny
4%
82
77°
Chance Rain Showers
42%
62
78°
Partly Sunny then Slight Chance Rain Showers
22%
75
80°
Showers And Thunderstorms Likely
67%
22
79°
Mostly Sunny
8%
85
79°
Sunny
4%
82
What to Bring Today
- critical SPF 50 sunscreen UV index 8 — very high
- recommended Beach shelter or anchored canopy 15 to 20 mph wind — umbrellas will flip
- optional Swimsuit - water is swimmable Water is 78°F
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
Metered paid parking.
Dogs
Dogs allowed before 9:30 AM and after 5:30 PM in summer. Off-leash permitted with Dewey Beach dog license. Year-round dog access otherwise.
Entry Fee
Free beach access; paid parking
Address
Dewey Beach, DE 19971
Amenities
Frequently Asked
Is it safe to swim at Dewey Beach today?
Dewey Beach shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. Seasonal lifeguards patrol the swim area in summer — follow their flags. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Dewey Beach dog-friendly?
Dogs allowed before 9:30 AM and after 5:30 PM in summer. Off-leash permitted with Dewey Beach dog license. Year-round dog access otherwise.
Is there an entry fee at Dewey Beach?
Entry to Dewey Beach is free.
Are there lifeguards at Dewey Beach?
Yes. Seasonal lifeguards patrol Dewey Beach during the summer swim season (typically Memorial Day through Labor Day). Outside that window, swim at your own risk.
What amenities are at Dewey Beach?
Amenities at Dewey Beach include lifeguards, restrooms, bars and restaurants, showers.
When is the water warmest at Dewey Beach?
Atlantic water temperatures peak in August. Northern beaches (ME, NH, MA) run cool — typically 60-68°F at the summer peak. Mid-Atlantic (NJ, DE, MD, VA) hits 74-76°F. The Carolinas and Florida Atlantic warm into the 80s and stay swimmable from May through October.
Where is Dewey Beach located?
Dewey Beach is in Sussex County, DE, at Dewey Beach, DE 19971.
Nearby Beaches
Updated · Data from NOAA, NWS