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Surf Forecasts:

K38 and 39 surf break

K38 and 39 surfForecast / Rhode Island / USA

information circle12 Day Weather and Surf, issued 1 am Thursday 18 Sep 2025 EDT
Forecast update in hr  min  s Forecast update imminent
K38 and 39 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's K38 and 39 sea temperature is
19.9° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for K38 and 39 this week:

The surf forecast for K38 and 39 over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 8AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.4m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at K38 and 39 in the next 12 days are 0.9m 11s and forecast to arrive on Monday (Sep 22) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Sep 20) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 18th Sep)3ft (0.9m) 7s
Best Surf 8AM (Thu 18th Sep)3ft (0.9m) 7s
Most Powerful 8AM (Mon 22nd Sep)3ft (0.9m) 11s

Table - best surf conditions forecast for K38 and 39 over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 25°C on Fri afternoon, min 15°C on Sat morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Tue afternoon, min 12°C on Mon morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
SE
0.7
SE
0.6
SE
0.4
ESE
0.5
SW
0.2
SSE
0.3
SE
0.3
SE
0.3
SE
0.4
SE
0.5
SE
0.6
SE
0.9
SE
0.9
SE
0.8
SE
0.8
SE
0.8
SE
0.8
SE
0.8
SE
0.7
SE
0.7
SE
Period(s) (?)77776999913121111111010109998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)71494219178121212437282191187130133110117977668
Wind
(km/h)
10
N
15
SSW
15
W
5
WNW
15
WSW
25
NNE
20
ENE
20
ESE
10
E
20
E
20
ESE
10
ENE
5
E
10
SSW
15
SW
20
WSW
20
SW
10
WSW
10
ENE
20
E
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		oncross-
on		glasscross-
on		offoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		onononcross-
on		offcross-
off		cross-
off
High Tide
/ height (m)
6:08PM
1.05
6:31AM
0.99
6:54PM
1.06
7:15AM
1.05
7:36PM
1.06
7:56AM
1.10
8:15PM
1.05
8:34AM
1.12
8:52PM
1.02
9:12AM
1.11
9:29PM
0.98
9:50AM
1.08
10:06PM
0.92
Low Tide
/ height (m)
12:17PM
0.02
12:53AM
0.01
1:05PM
-0.02
1:30AM
-0.02
1:47PM
-0.04
2:03AM
-0.03
2:24PM
-0.05
2:32AM
-0.04
2:58PM
-0.03
2:58AM
-0.02
3:28PM
0.01
3:23AM
-0.00
3:57PM
0.05
3:47AM
0.03
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:28--6:28--6:30--6:31--6:31--6:33--6:35--
Sunset-6:50--6:49--6:46--6:45--6:44--6:42--6:39-
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C192220232523171916161715151717212321212419
Feels °C (?)202220232422121513111211141615192120222418
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Rhode Island

  1. weather stationWind Update Offshore wind reported 20 km from K38 and 39 (light winds from the N at BUOY-NWPR1 20 km from K38 and 39). 0.9m 7s swell from the ESE with a 0.4m 7s swell from the SSW. 2 swells combining to make bigger set waves.

    1 hour 17 minutes ago K38 and 39
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20 km away, 1 h 17 min ago

13 km/h
N
0.0
19.9
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our K38 and 39 surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for K38 and 39 at:
surf-forecast.com

Information about the K38 and 39 Surf forecast

The above surf forecast table for K38 and 39 provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at K38 and 39 can be found by selecting the local surf guide option on the grey menu. Our K38 and 39 surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (K38 and 39) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for K38 and 39 may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

K38 and 39 is 8 km (5 miles) from Narragansett Pier. If you plan a vacation in Rhode Island, look for hotels and other accommodation in Narragansett Pier. Narragansett Pier has rooms for a wide range of budgets as well as car hire and transport links.

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