Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 7 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
19.5° C
1.7° 

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 19 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 11PM (local time) - 6.5ft (2.0m), 9s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 5AM (local time) - 8ft (2.5m), 9s period, S swell with 993 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 11PM (local time) - 6.5ft (2.0m), 9s period with S swell.

Best Forecast Surf Conditions for Block Island this week:

The surf forecast for Block Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 22) at 11PM. The primary swell is predicted to be 2.0m and 9s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Block Island in the next 16 days are 2.5m 9s and forecast to arrive on Wednesday (Jul 22) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Sunday (Jul 19) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Wed 22nd Jul)6.5ft (2.0m) 9s
Best Surf11PM (Wed 22nd Jul)6.5ft (2.0m) 9s
Most Powerful 5AM (Wed 22nd Jul)8ft (2.5m) 9s

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


The Lowdown

Alright folks, Rusty here. Let's get into it. We've got a 16-day window for the Block Island area, and I'll be straight with you—it's looking like a tough stretch. There are a lot of flat, windy days ahead, so patience is the name of the game.

The first real glimmer of hope doesn't pop up until Wednesday, July 22nd, but it's not much to write home about. We see a moderate cross-shore breeze and a building 7ft swell from the south, with a period of 8 seconds. The combined energy is moderate at 637, but the surf quality is marginal. It’s going to be bumpy and not really worth paddling out for.

The standout of the entire 16-day forecast arrives on Thursday morning, July 23rd. This is the one to circle on your calendar. The wind will be light and offshore from the northeast, making for clean conditions at the Block Island point break. We're looking at a solid 5ft swell out of the south, with a 9-second period and a combined energy of 380. The water temp is sitting around 67°F, which is about 3°F cooler than normal for this time of year, so a wetsuit is still a good idea. It's not going to be huge, but it'll be the cleanest, most organized surf we see all week. Just keep in mind this spot rarely breaks, so to see it lining up like this is a treat. Because it does break infrequently, you might find a few others who sniffed it out, but the quality should be worth sharing the peak.

After that morning, the rest of the period pretty well shuts down. The waves get small, the wind shifts onshore or cross-onshore, and we get a long run of poor conditions. There's a little blip at the very end, on Friday morning, July 31st, where a bigger swell from the east-northeast at 6ft rolls in, but with a moderate onshore wind and a period of just 8 seconds, it's going to be choppy and messy. The combined energy is high at 436, but the quality just won't be there for a good paddle session.

From there, we fade back into small, choppy surf for the start of August. The forecast looks pretty bleak right through to that Monday morning, August 3rd, where we get another small window of clean surf from a light offshore breeze and a 3ft SSE swell. It's surfable, but ordinary, and nothing compared to that Thursday morning.

So, to sum it up: the one and only standout is Thursday morning, July 23rd at Block Island. Get on it if you can, because the rest of the 16 days is filled with long gaps of flat, windy, or choppy conditions. Don't hold your breath for the rest.

Stay patient,
Rusty

Short Range Forecast

Moderate rain (total 13mm), heaviest on Tue night. Warm (max 25°C on Sun afternoon, min 19°C on Sun night). Winds increasing (calm on Mon morning, fresh winds from the WSW by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Wed afternoon, min 17°C on Wed night). Wind will be generally light.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
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
1
0
3
2
0
1
0
0
1
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)
1.2
SSW
6
0.7
S
7
1
SSW
8
0.9
SSW
8
0.8
SSW
7
0.7
SSW
7
0.6
SSW
7
1.2
SSE
6
2.2
S
8
2.1
S
8
2.4
SSW
9
1.9
S
9
1.6
S
9
1.1
S
8
0.9
SSW
8
0.8
SSW
8
0.8
SSW
8
0.9
ESE
8
0.9
SE
8
0.8
SE
7
0.7
SE
7
Wave Graph
Metric surfscale
Energy kJ
109
51
123
96
71
55
42
91
624
637
958
619
380
161
99
75
75
98
82
59
49
Wind (km/h)
20
NW
20
W
20
NNE
0
WNW
20
S
20
S
25
SE
25
SE
25
SW
25
SW
25
WSW
20
NNW
15
NE
15
SE
10
NE
15
ENE
10
SSE
10
W
15
SSW
25
S
20
W
Wind State
cross-off
cross-off
cross-off
glassy
cross-on
on
on
on
cross
cross
cross
off
cross-off
on
cross-off
cross
on
cross-off
cross-on
cross-on
cross-off
High Tide
12:42PM0.95m
00:50AM0.79m
1:37PM0.91m
1:44AM0.71m
2:35PM0.87m
2:44AM0.66m
3:35PM0.84m
3:48AM0.62m
4:34PM0.84m
4:50AM0.62m
5:29PM0.84m
5:46AM0.63m
6:20PM0.87m
Low Tide
7:10PM0.13m
7:13AM0.09m
8:13PM0.18m
8:00AM0.14m
9:16PM0.21m
8:51AM0.18m
10:16PM0.22m
9:47AM0.20m
11:12PM0.22m
10:41AM0.20m
00:03AM0.20m
11:33AM0.19m
00:49AM0.18m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:30
5:31
5:31
5:33
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:14
8:13
8:12
8:12
8:10
8:09
 mm
13
3
Temp °C
22
25
25
21
22
22
22
22
23
22
25
24
20
20
19
19
20
21
21
22
20
Feels °C
19
21
21
20
19
19
20
20
23
21
22
20
17
17
17
17
18
19
21
20
18
  • 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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