Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 pm 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.1° C
1.6° 

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 27 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 8PM (local time) - 4.5ft (1.3m), 8s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 3 Aug, 2PM (local time) - 6ft (1.9m), 9s period, S swell with 619 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 8PM (local time) - 4.5ft (1.3m), 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 Thursday (Jul 30) at 8PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.3m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Block Island in the next 16 days are 1.9m 9s and forecast to arrive on Monday (Aug 03) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Friday (Jul 31) at 11AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 30th Jul)4.5ft (1.3m) 8s
Best Surf 8PM (Thu 30th Jul)4.5ft (1.3m) 8s
Most Powerful 2PM (Mon 3rd Aug)6ft (1.9m) 9s

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


The Lowdown

Alright, let’s get into it. I’m Rusty, and I’ve been watching this stretch of coast like a hawk. Gotta be honest with you, it’s a tough run ahead. The next couple of weeks are looking pretty grim for any decent surf around here. The only spot that even gets a mention is Block Island, and it’s a tricky one.

The water’s hanging around 68°, which is a bit colder than we’d expect for late July – about 3° off the mark. Nothing to write home about there.

We’re looking at a long, dry spell right from the start. From Monday the 27th of July all the way through to the end of the month, it’s a write-off. The wind is all over the place, mostly cross-onshore or onshore, and the swell is weak and messy. The combined energy is barely a whisper.

The first faint glimmer of hope comes on Thursday the 30th of July. The morning swell is a messy 5 ft from the south with a period of 9 seconds, and the combined energy climbs to 334 – that’s moderate, at least. The wind is a light cross-onshore, so it’s not completely blown out, but it’s still marginal. Tide could be a factor. The afternoon cleans up a touch with a lighter cross-shore breeze, but the swell drops to 4 ft.

Friday the 31st of July is interesting. The wind swings around to the north-northeast, giving us a clean, cross-offshore breeze. The morning is a bit windy, but the afternoon eases off. The swell is a modest 4 ft from the south, period around 8-9 seconds, and the combined energy is 177. It’s surfable, but it’s nothing to get excited about. It’s clean, but small.

Saturday the 1st of August starts with glassy conditions, but the swell is tiny – 3 ft and dropping. The energy is only 149. It’s a no-go.

Then it gets worse. From Sunday the 2nd of August through to the end of the 16-day window, we’re looking at nearly two weeks of flat to tiny, wind-blown junk. The combined energy drops into double digits, and the swell is rarely above 2 ft. There’s a moment on Monday the 3rd of August where the swell bumps up to 6 ft from the south, but it’s accompanied by a strong onshore wind and the comment is “poor surf conditions.” The energy is 593, but it’s a messy, onshore wall of water. That’s more of a kite-surfing setup than anything for a paddle surfer.

The best on offer? Honestly, there isn’t a standout. If I had to pick the least-worst, it’s Friday the 31st of July afternoon at Block Island. A clean 4 ft south swell with a cross-offshore breeze. It’s small, but it’s the only time in the whole run where the wind is working with us. The break is a rarely-breaking point, so don’t expect much. Crowds are often a problem here, so on a clean day, it’ll be busy.

The second week is a total write-off. Don’t bother checking the charts until we’re past the 10th of August. It’s a long, quiet stretch.

Stay patient, my friends. It’ll turn around eventually.

Rusty

Short Range Forecast

Moderate rain (total 18mm), heaviest on Tue night. Warm (max 23°C on Mon night, min 20°C on Tue night). Winds decreasing (fresh winds from the SSE on Tue night, light winds from the SSW by Thu morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Thu afternoon. Warm (max 22°C on Sun morning, min 18°C on Thu night). Wind will be generally light.

Mon
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
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
1
1
0
0
1
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)
0.6
SE
8
0.6
SE
8
1.2
S
5
1.5
S
5
1.8
S
6
2
S
7
1.6
SE
7
1.6
S
8
1.5
S
9
1.3
S
8
1.2
S
8
1.1
S
9
1.1
S
8
1
S
8
1
S
9
0.9
S
8
0.9
S
8
0.8
S
8
0.8
S
7
0.4
SSE
7
Wave Graph
Metric surfscale
Energy kJ
36
50
77
129
237
393
268
300
328
230
191
186
165
140
146
109
94
71
64
19
Wind (km/h)
20
SSW
20
SSW
25
S
30
S
35
SSE
20
SSW
20
SSW
20
SSW
10
SSW
5
WSW
20
NNE
25
NNE
15
NNE
15
NNE
5
ENE
15
S
10
S
15
SSE
20
SSE
20
ESE
Wind State
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
on
on
cross-on
High Tide
7:44PM0.91m
8:03AM0.75m
8:20PM0.92m
8:42AM0.79m
8:52PM0.93m
9:17AM0.82m
9:22PM0.93m
9:50AM0.84m
9:54PM0.92m
10:22AM0.87m
10:28PM0.90m
10:55AM0.89m
11:07PM0.87m
Low Tide
2:08AM0.11m
1:45PM0.12m
2:43AM0.07m
2:24PM0.11m
3:15AM0.05m
3:01PM0.11m
3:42AM0.04m
3:37PM0.11m
4:06AM0.04m
4:15PM0.11m
4:32AM0.04m
4:56PM0.12m
clear
clear
clear
light rain
rain showers
rain showers
clear
rain showers
part cloud
rain showers
part cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:39
5:39
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:07
8:06
8:05
8:04
8:02
8:01
 mm
1
12
3
2
1
Temp °C
22
23
22
22
22
22
22
22
21
21
21
19
21
20
20
20
21
22
22
23
Feels °C
20
22
20
19
20
22
22
22
21
23
23
17
21
19
21
20
21
22
22
23
  • Map Icons:
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  • 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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