Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 pm 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
18.2° C
2.2° 

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 11 Jul 2026:

  • Most powerful swell: Tuesday 14 Jul, 11PM (local time) - 7ft (2.1m), 7s period, SW swell with 360 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 Tuesday (Jul 14) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Jul 11) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Tue 14th Jul)7ft (2.1m) 7s

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


Alright folks, Rusty here. Let’s break down what’s going on at Block Island. I’ll be honest – it’s a rough start.

Right now, the surf is basically flat. The first week is a total bust – four or five days of nothing but tiny, weak swell and bumpy, cross-shore winds making a mess of the ocean. Don’t bother paddling out. The water temp is a cold 65°, which is about 4° colder than usual for this time of year. You’ll feel it.

The waves finally start to show up around Tuesday the 14th of July. We get a moderate pulse of energy (118) with 4ft from the SW, but it’s getting torn up by a 30 km/h crosswind, so it’ll be lumpy and messy. Not a day to get stoked on. By Tuesday afternoon, the wind cranks to 40 km/h, and the swell hits 6ft – but it’s all chop and crosswind, just a mess out there.

Wednesday the 15th and Thursday the 16th keep that pattern going: solid 5ft SW swell and moderate to fresh crosswinds – rough, crumbly waves. Energy is moderate to strong (221–210), but the wind never lets it clean up.

The only real chance in the first week is Thursday morning the 16th, when a light NW breeze goes cross-offshore. It’s only 3ft SSW swell with weak energy (59), so it’s small and clean but not really pumping. Might be okay for a longboard if you’re itching to get wet.

Heading into the second week, things get better. By Sunday the 19th of July, we’ve got a clean window with 4ft S swell and light N to NE winds blowing cross-off. That’s clean, workable surf – the best so far. Energy is moderate (101–108). This is the standout: Block Island point with 4ft S swell and clean conditions. It’s a rarely-breaking spot, so when it lines up like this, get out there. But expect crowds – it’s often busy.

Then around Tuesday the 21st of July, the swell builds. We get 5ft S swell with a building period (8 seconds) and clean NE cross-off wind in the morning. Energy jumps to 278 – strong. This is promising, but it’s still a week and a half out, so don’t book your flights yet.

By Wednesday the 22nd of July, the swell is cranking – 8ft S swell with 9-second period, and energy is strong at 939. That’s serious power, but the wind turns cross and then cross-on. For experienced riders, this could be a big, challenging day. On the 23rd and 24th, we’re looking at 8ft S swell with 9-second period, but the wind stays cross to cross-on and gets fresh, making it lumpy and tough. At that size, this is expert-only territory – and even then, you’ll be battling the chop.

Bottom line: beginners should stay out once the swell passes 5ft. Your best bet for a clean, fun session is Sunday the 19th of July. The big swell later in the month is for pros only, and the wind won’t make it easy.

Stay patient, watch the wind, and don’t force a bad session.

Rusty

Short Range Forecast

Mostly dry. Warm (max 28°C on Fri afternoon, min 19°C on Sun morning). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Wed night. Warm (max 29°C on Wed night, min 20°C on Mon afternoon). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Wed night).

Fri
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
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)
0.9
SW
6
0.8
SSW
6
0.7
SSW
7
0.6
SSW
7
0.5
S
7
0.5
S
7
0.5
S
7
0.3
SE
10
0.3
SE
9
0.3
SE
9
1.2
SW
5
1.3
SW
6
1.9
SW
6
2
SW
7
1.6
SW
7
1.6
SW
6
1.3
SSW
7
0.9
SSW
6
0.8
SSW
6
0.7
SW
6
0.5
SSW
6
Wave Graph
Metric surfscale
Energy kJ
44
55
49
36
22
26
24
17
14
13
66
97
266
347
207
200
138
55
41
35
18
Wind (km/h)
25
W
15
N
20
ENE
25
E
15
NE
15
ENE
15
SE
5
SSW
15
S
30
SSW
35
SW
30
WSW
40
SW
35
WSW
25
WSW
30
SW
15
NNW
15
WNW
20
W
15
N
10
NW
Wind State
cross-off
off
cross
cross
cross-off
cross
cross-on
glassy
cross-on
cross-on
cross
cross
cross
cross
cross
cross
off
cross-off
cross-off
off
off
High Tide
4:45PM1.02m
5:15AM0.75m
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
Low Tide
11:48PM0.07m
10:52AM-0.01m
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
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
rain showers
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:24
5:24
5:24
5:26
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:20
8:19
8:19
8:17
8:17
8:16
8:16
8:15
 mm
1
Temp °C
28
27
22
23
21
21
21
20
19
20
21
24
26
25
26
28
29
27
30
28
24
Feels °C
26
28
19
20
18
19
17
18
19
16
17
21
22
22
24
26
29
25
26
25
22
  • 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