Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
19.6° C
1.2° 

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 14 Jul 2026:

  • Best quality surf: Tuesday 21 Jul, 2AM (local time) - 4.5ft (1.4m), 8s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 15 Jul, 2AM (local time) - 8ft (2.5m), 7s period, SW swell with 627 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 21 Jul, 2AM (local time) - 4.5ft (1.4m), 8s 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 Tuesday (Jul 21) at 2AM. The primary swell is predicted to be 1.4m and 8s 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 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 0.4m 3s period and expected on Wednesday (Jul 15) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 21st Jul)4.5ft (1.4m) 8s
Best Surf 2AM (Tue 21st Jul)4.5ft (1.4m) 8s
Most Powerful 2AM (Wed 15th Jul)8ft (2.5m) 7s

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


The Lowdown

Alright, this is Rusty. Let's talk about what's on offer for Block Island over the next couple of weeks. I'll be straight with you, it's a tough stretch for the paddle crew.

The pattern starts off pretty grim. For the first several days, from Tuesday the 14th right through to Sunday the 19th, conditions are just plain poor. We're looking at a persistent cross-shore or cross-onshore wind, mostly from the southwest, that's going to keep things bumpy and lumpy. The swell is weak, with combined energy values barely hitting triple digits, and the periods are short – around 5 to 6 seconds. Honestly, it's not worth getting wet for a surfer looking for anything decent. The water is sitting at about 67°, which is a bit colder than usual for this time of year.

The first real glimmer of hope comes on Monday the 20th. The morning sees a clean, cross-offshore breeze out of the west. This cleans up a 6 ft swell coming from the south with an 8-second period. The combo energy jumps to a moderate 399. The wind is clean, so the surf will have shape, but the onshore kicks in hard by the afternoon, so you need to be on it early.

The standout session of the whole forecast? That has to be Tuesday the 21st. We get a morning with a clean, light cross-offshore wind from the WNW. Swell is a solid 5 ft from the south, period at 8 seconds, and the book says "expect good surf conditions." The combined energy is a healthy 258. With a gentle offshore breeze, it'll be glassy and lined up. This is the one to circle. Block Island is a point break that rarely breaks, so when it lines up like this, you don't miss it. The optimum swell direction from the guidance is SE, so this S swell is pushing the right buttons. The crowds can be a problem here – it is often busy, so expect company.

Looking further out, Friday the 24th and Saturday the 25th have longer-period energy rolling in, with 13-second and 11-second swells respectively, and combined energy readings in the 335 to 381 range. That's a lot of juice. But the wind is a mess – onshore or cross-shore from the southwest – so while there's plenty of water moving, it'll be chopped up and ugly for a standard paddle surfer. The long period might make it break a bit straight on the beach, but with those winds, it looks more interesting for a kite session than surfing.

The very end of the window, on Monday the 27th, has some onshore southerly swells around 4 ft to 4 ft, but the winds are light, which could mean a bit of shape. The energy is moderate, but the quality will be marginal.

So, if you're waiting for the clear winner, it's the morning of Tuesday the 21st. The Monday 20th morning is a decent backup, but the 21st has the best balance of clean wind and decent swell for the point. The rest of the 16 days is mostly a write-off for decent surf. As we always say, forecasts can change, so keep an eye on it.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 31°C on Wed night, min 20°C on Thu night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the NNW by Wed night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sat night. Warm (max 25°C on Sun night, min 20°C on Fri morning). Mainly strong winds.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
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
0
0
0
0
0
0
0
0
1
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SW
5
1.9
SW
6
2.5
SW
7
1.5
SW
7
1.6
SW
6
0.9
SSW
6
0.9
SSW
6
1
SW
6
0.9
SSW
6
0.7
SSW
6
0.6
SSW
5
0.6
S
6
0.5
S
5
0.5
S
5
0.9
SSE
5
0.7
SSW
5
1.1
SSW
6
1.7
SSW
6
1.7
S
8
1.7
S
8
1.4
S
8
Wave Graph
Metric surfscale
Energy kJ
87
258
627
195
193
63
57
75
61
27
21
22
14
12
32
22
86
242
396
412
264
Wind (km/h)
30
WSW
50
SW
35
WSW
25
WSW
25
WSW
10
NNW
15
SW
25
SW
20
NE
5
SW
25
SSW
15
WSW
15
SSW
25
SSW
15
SSW
25
SW
30
SW
20
W
20
W
30
SW
25
NNW
Wind State
cross
cross-on
cross
cross
cross
off
cross-on
cross
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-on
off
High Tide
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
00:00AM0.88m
12:42PM0.95m
00:50AM0.79m
1:37PM0.91m
1:44AM0.71m
Low Tide
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
6:08PM0.07m
6:28AM0.03m
7:10PM0.13m
7:13AM0.09m
8:13PM0.18m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
light rain
thunderstorm
part cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:26
5:26
5:28
5:28
5:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:16
8:16
8:15
8:15
8:15
8:14
 mm
1
1
Temp °C
22
23
25
27
30
31
26
28
29
22
24
24
23
22
22
23
24
25
24
25
25
Feels °C
18
18
24
25
29
30
25
24
26
22
21
22
23
18
24
23
23
24
22
22
23
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Block Island:

join our community of surf reporters

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 Block Island 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.


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.

Nearest locationNearest