Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 pm 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
18.7° C
1.8° 

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 12 Jul 2026:

  • Most powerful swell: Wednesday 15 Jul, 2AM (local time) - 7ft (2.1m), 7s period, SW swell with 386 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 2.1m 7s and forecast to arrive on Wednesday (Jul 15) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 16) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Wed 15th Jul)7ft (2.1m) 7s

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


Alright, Rusty here. Let's talk about Block Island.

First off, I gotta be straight with you. For the next week and a half or so, it’s a dud. We're looking at a long stretch of small, weak, junky surf. Don't get your hopes up.

From the 11th right through to the 19th, there's hardly a wave worth paddling for. The swell is tiny, mostly under 2 ft, and the wind is all over the place – cross-on, onshore, making a mess of things. The water is a bit colder than normal for this time of year, sitting at 66°. There's a glassy moment on the morning of the 17th, but even then, the energy is just not there. It's a frustrating start.

We get a slight glimmer on the 20th. Monday morning sees a little bump in size to 4 ft from the S, with a clean cross-off wind. It's just surfable, but nothing to write home about. The energy is still weak.

The real standout, the only one worth circling on your calendar, is the morning of Wednesday the 22nd of July. That's the one. We’ve got a 5 ft swell from the S, with a period of 8 seconds, and a light cross-off breeze from the NE. The combined energy jumps up to a moderate level. The forecast is saying "expect good surf conditions," and with the wind cleaning it up, it should be fun. The swell direction is S, which is a good match for the break's optimum SE direction. Keep in mind Block Island is a point break that rarely breaks, so it's not a given, but conditions look the best they're going to get. It's a decent size, so it might be a bit much for total beginners, but it's not a full-on beast.

After that, the 23rd brings a bigger swell at 6 ft to 7 ft, but the wind swings cross-on from the E, making it a mess. The 24th and 25th see even more energy with strong, messy cross-shore winds, creating a lumpy, choppy scene. That's more of a kite-surfing setup than a clean paddle session. The period is short, so it's all wind swell.

So, to wrap it up: the morning of the 22nd of July is your best bet. Everything else is pretty grim. A rare break coming together for a day is a big deal, so keep your fingers crossed for that one.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Sat afternoon, min 21°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the WSW by Mon night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Wed afternoon, min 19°C on Fri morning). Winds decreasing (strong winds from the SW on Tue night, calm by Fri morning).

Sat
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSW
7
0.5
S
7
0.6
S
7
0.5
S
7
0.5
S
7
0.3
SE
9
0.6
S
7
0.8
SW
4
1
SW
4
1.7
SW
6
2.1
SW
7
1.4
SW
6
1.2
SW
6
0.9
SSW
6
1
SSW
6
1.1
SW
6
0.9
SSW
6
0.7
SSW
6
0.6
S
6
0.6
SSW
6
0.4
SSW
6
Wave Graph
Metric surfscale
Energy kJ
36
22
34
22
24
14
32
17
40
177
386
162
102
57
82
91
55
39
26
30
12
Wind (km/h)
25
SE
0
ENE
10
ENE
15
SE
10
SSW
15
SSW
25
SSW
30
SW
30
WSW
45
SW
40
WSW
20
WSW
25
SW
10
WNW
15
S
30
WSW
10
NW
0
N
20
W
15
N
5
SSW
Wind State
cross-on
glassy
cross
on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross-off
cross-on
cross
off
glassy
cross-off
cross-off
glassy
High Tide
5:51PM1.08m
6:19AM0.80m
6:53PM1.12m
7:18AM0.85m
7:50PM1.15m
8:15AM0.91m
8:43PM1.14m
9:10AM0.96m
9:34PM1.10m
10:03AM0.99m
10:23PM1.05m
10:56AM1.00m
11:11PM0.97m
11:49AM0.98m
Low Tide
00:47AM0.02m
11:58AM-0.05m
1:41AM-0.02m
1:02PM-0.08m
2:33AM-0.05m
2:05PM-0.09m
3:23AM-0.06m
3:06PM-0.07m
4:10AM-0.07m
4:06PM-0.04m
4:57AM-0.05m
5:07PM0.01m
5:43AM-0.02m
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:24
5:24
5:26
5:26
5:26
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:19
8:19
8:17
8:17
8:16
8:16
8:15
8:15
 mm
Temp °C
24
22
21
23
21
21
21
21
23
23
24
27
29
27
22
27
28
21
26
24
20
Feels °C
22
20
19
20
18
21
17
18
20
19
20
27
28
26
22
23
25
22
23
21
19
  • 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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