Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.9°C
0.4° 

Block Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Block Island surf forecast from 26 Aug 2026:

  • Most powerful swell: Friday 28 Aug, 5AM (local time) - 4ft (1.2m), 6s period, SSW swell with 104 kJ wave energy.

Best Forecast Surf Conditions for Block Island this week:

The most powerful waves expected at Block Island in the next 16 days are 1.2m 6s and forecast to arrive on Friday (Aug 28) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 29) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Fri 28th Aug)4ft (1.2m) 6s

Table - best surf conditions forecast for Block Island over the next 16 days.


The Lowdown

Alright folks, Rusty here. Gotta be straight with you on this one. Looking at the charts for our neck of the woods, it's a real tough stretch. We're staring down a long, flat spell with nothing worth paddling out for.

Here's the deal. The only spot we've got to look at is Block Island, a point break that's a real ghost town – it rarely breaks. And looking at the next 16 days, it's staying that way. From Wednesday the 26th of August right through to the 10th of September, every single forecast entry is a "poor surf conditions" with a score of zero. That's a solid two-week gap with no recommendations.

The water temp is sitting around 70°F which is pretty much normal for this time of year. But that's where the good news ends.

We get a few pulses of energy, but they're all wasted. The combined swell energy for the whole period is mostly weak, with values like 84 (weak), 93 (weak), and 148 (moderate). There's a couple of stronger ones on the 7th of September (232 moderate) and the 10th of September (406 moderate), but the wind just ruins everything.

For the first week, it's a constant battle with cross-onshore winds. The swell is tiny, 1 ft to 4 ft, with a short, weak period of 5 to 9 seconds. It's just a choppy, gutless mess.

The second week of September looks a *little* more promising for energy, but it comes with a price. On the 5th of September, we get a 4 ft swell from the East with a 9-second period, but the wind is screaming from the NNW at 31 mph. That's a near gale. It's clean, sure, but you won't be able to paddle into anything. That setup is more interesting for a kite surfer than a paddle surfer.

The only real standout in terms of size comes on the 10th of September. A clean, cross-off wind, but the swell is 5 ft to 6 ft from the SE with a short period of 5-7 seconds. That's a peak energy of 406 (moderate), but the period is so short it'll be a bumpy, closing-out mess. It's too big and shifty for beginners and not good quality for anyone else.

So, in short, we're in a drought. The spot is inconsistent, the wind is mostly wrong, and the swell is either too small or too wind-affected. Don't bother checking the cam for a while. Forecasts can change, but right now, it's a hard pass.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri morning. Warm (max 24°C on Thu morning, min 20°C on Sat morning). Winds decreasing (fresh winds from the SSW on Thu night, light winds from the N by Sat morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue morning. Warm (max 25°C on Sat night, min 19°C on Tue morning). Winds increasing (calm on Mon morning, fresh winds from the NNE by Tue morning).

Wed
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SE
8
0.7
SE
8
0.7
SE
8
0.7
SE
9
1.3
SSW
6
1.1
S
6
0.8
S
6
0.8
S
6
0.7
S
7
0.7
SSW
7
0.5
SE
8
0.5
SE
8
0.4
SE
8
0.4
SE
8
0.8
SW
5
0.9
SW
5
0.7
SSW
5
0.5
SSW
5
0.3
SE
10
0.3
SE
12
Wave Graph
Metric surfscale
Energy kJ
72
70
74
77
102
91
53
53
43
48
34
35
25
24
28
32
23
14
15
23
Wind (km/h)
15
SW
15
SW
20
SSW
25
SSW
20
SSW
15
SSW
20
SW
15
NW
10
N
20
SW
15
WSW
20
WSW
30
SW
30
WSW
15
WSW
15
W
25
WSW
40
NNE
35
ENE
20
ENE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
off
cross-off
cross
cross
cross
cross-on
cross
cross
cross-off
cross
cross-off
cross-off
cross
High Tide
7:47PM0.91m
8:10AM0.87m
8:18PM0.93m
8:43AM0.91m
8:50PM0.94m
9:14AM0.95m
9:25PM0.94m
9:47AM0.98m
10:03PM0.92m
10:23AM0.99m
10:44PM0.88m
11:05AM1.00m
11:30PM0.83m
Low Tide
2:02AM0.05m
2:08PM0.09m
2:30AM0.02m
2:43PM0.07m
2:55AM0.01m
3:19PM0.05m
3:22AM0.00m
3:56PM0.05m
3:52AM0.01m
4:38PM0.06m
4:27AM0.03m
5:25PM0.09m
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
rain showers
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:09
6:09
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:29
7:27
7:25
7:23
7:22
7:21
7:19
 mm
1
1
1
3
Temp °C
22
23
24
24
23
24
24
24
21
24
25
24
24
24
23
24
24
23
19
17
Feels °C
21
23
23
22
22
25
25
26
22
21
21
22
21
21
26
23
25
20
15
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Block Island Surf forecast

The above surf forecast table for Block Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Block Island can be found by selecting the local surf guide option on the grey menu. Our Block Island 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 (Block Island) 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 Block Island 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.

Block Island is 33 km (20 miles) from Westerly. If you plan a vacation in Rhode Island, look for hotels and other accommodation in Westerly. Westerly has rooms for a wide range of budgets as well as car hire and transport links.

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