Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Issued: 7 pm 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
18.7° C

Slightly cooler than normal

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 4 Jul 2026:

  • Best quality surf: Saturday 11 Jul, 2AM (local time) - 3.5ft (1.1m), 8s period, S swell with offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 11AM (local time) - 6ft (1.9m), 6s period, ESE swell with 280 kJ wave energy.
  • Next surfable swell (1★+): Saturday 11 Jul, 2AM (local time) - 3.5ft (1.1m), 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 Saturday (Jul 11) at 2AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.4m and 9s. 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 1.9m 6s and forecast to arrive on Tuesday (Jul 07) at 11AM. 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 Saturday (Jul 04) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 11th Jul)3.5ft (1.1m) 8s
Best Surf 2AM (Sat 11th Jul)3.5ft (1.1m) 8s
Most Powerful11AM (Tue 7th Jul)6ft (1.9m) 6s

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


Updates in  hr  min  s Forecast update imminent

Alright, this is Rusty. Let's take a hard look at what's coming up for Block Island. I gotta be straight with you – this is a tough stretch. We’re looking at a solid two-and-a-half-week run where the surf quality is just not cooperating. The winds and the swell never line up right for clean, rideable waves. That first Saturday morning on July 4th is small, just 2ft from the SW, but with a stiff 12 mph cross-shore wind, it's a mess. That afternoon gets worse with 19 mph gusts and thunderstorms threatening. That sets the tone.

We go from the 4th right through to the morning of July 7th with nothing but poor surf. The wind is either cross or cross-onshore, and the swell is weak, never getting above 4ft but with short periods and combined energy values stuck below 70, meaning there's just no power.

Now, on Tuesday afternoon, July 7th, we start to see a pulse of energy. The swell jumps to 5ft from the ESE, and the combined energy climbs to 231. That's a moderate amount of grunt. The wind goes light cross-shore at 6 mph, so the surface gets small crossing wind ripples. The score is still just a 1, meaning it’s marginal at best due to questionable tides. It’s the best we've seen, but it’s not good.

The 8th and 9th continue the frustrating pattern. Decent energy on the 8th (164 combined energy) with clean conditions due to a light cross-offshore wind, but the swell is only 3ft and underpowered. On the 9th, the wind swings back to a messy cross-onshore. There’s a small window on Saturday morning, July 11th, with a light cross-shore breeze and 4ft S swell with a period of 8 seconds, giving us 193 combined energy. It feels like it could have been something, but the wind was just off.

We get another clean spell on Monday, July 13th, with a light cross-offshore wind and 2ft swell, but the combined energy is only 56 – completely flat. The morning of July 14th is the same story: clean but tiny.

Then the energy returns in a big way. The morning of July 15th sees 6ft from the SW, pushing 345 combined energy. That is significant, but the wind is a moderate cross-shore at 12 mph, which will put a chop on it. It’s still classed as poor surf conditions. The 18th morning looks interesting with a completely glassy 4ft SW swell, but the energy is still weak at 95, it's small, and it's a rare, clean moment that might get a few fun waves if you're desperate.

That glassy morning on July 18th is your single standout. It’s not big, but with zero wind, it will be clean and surfable for an intermediate. The bigger 6ft swell on the 15th and 19th brings too much wind and chop, making it a messy, difficult paddle. For the entire two-week run, there is no period of consistently good surf. Block Island rarely breaks as it is, and this forecast lives up to that reputation. For any kite surfers out there, that Tuesday, July 7th with 6ft and a strong cross-shore energy might look interesting, but for paddle surfing, it's a no-go.

The water temperature is about average for the time of year.

Stay patient, keep an eye on the forecasts, and fingers crossed for something better down the line.

Rusty.

Short Range Forecast

Heavy rain (total 24mm), heaviest during Mon afternoon. Warm (max 30°C on Fri night, min 18°C on Mon afternoon). Winds increasing (light winds from the NE on Sun morning, strong winds from the E by Mon afternoon).

Days 5-7 Weather Summary

Moderate rain (total 13mm), heaviest on Mon night. Warm (max 23°C on Thu afternoon, min 16°C on Tue night). Winds decreasing (fresh winds from the E on Mon night, light winds from the ESE by Wed afternoon).

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Fri
10
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
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)
0.8
SW
5
0.4
SE
9
1
SW
4
0.7
SW
5
0.4
SE
8
0.4
SE
8
0.9
ESE
4
0.9
ESE
5
1.2
ESE
5
1.5
SE
6
1.9
ESE
6
1.6
ESE
7
1.1
ESE
7
0.9
ESE
8
1.1
S
7
1.1
SSW
7
0.9
SSW
7
1.1
SSW
6
1.3
SSW
6
0.9
SSW
6
0.8
SSW
6
Wave Graph
Metric surfscale
Energy kJ
30
24
40
22
18
18
29
33
61
159
280
227
128
81
124
108
64
87
106
57
45
Wind (km/h)
20
WNW
20
WSW
30
WSW
20
W
10
E
20
ESE
15
ESE
35
E
40
E
30
ESE
15
E
10
ENE
25
N
15
NNE
10
SSW
25
SW
25
SW
30
SW
30
SSW
25
SSW
25
SW
Wind State
cross-off
cross
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross
High Tide
10:54PM0.87m
11:29AM0.78m
11:31PM0.84m
12:06PM0.81m
00:15AM0.81m
12:49PM0.84m
1:03AM0.77m
1:38PM0.88m
1:59AM0.74m
2:35PM0.92m
3:00AM0.72m
3:38PM0.97m
4:07AM0.72m
4:45PM1.02m
Low Tide
5:14AM0.08m
5:14PM0.17m
5:43AM0.08m
6:04PM0.18m
6:18AM0.08m
7:02PM0.18m
7:00AM0.08m
8:12PM0.16m
7:50AM0.07m
9:31PM0.14m
8:46AM0.05m
10:44PM0.11m
9:48AM0.03m
clear
clear
thunderstorm
rain showers
part cloud
part cloud
light rain
light rain
heavy rain
mod rain
rain showers
clear
cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:18
5:20
5:20
5:20
5:20
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:22
8:22
8:21
8:21
8:21
8:20
8:20
 mm
1
3
4
4
12
10
3
2
Temp °C
30
28
29
23
23
24
21
19
18
20
21
21
21
19
20
21
22
23
22
23
23
Feels °C
30
28
27
23
22
23
18
17
13
18
22
22
20
18
20
21
21
21
19
23
23
Swell 1
Height (m)
Direction
Period (s)
0.8
SW
5
0.4
SE
9
0.4
SE
9
0.3
SE
9
0.4
SSW
5
0.5
SSW
5
0.3
SSW
5
0.3
SE
10
0.2
SSW
5
0.3
SE
10
0.1
SE
10
0.2
SSW
5
1.1
ESE
7
0.9
S
7
1.1
S
7
0.5
E
7
0.9
SSW
7
0.4
SE
7
0.3
SE
10
0.9
SSW
6
0.8
SSW
6
Energy kJ
30
21
20
12
10
16
5
14
3
15
4
2
128
80
124
24
64
14
15
57
45
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
9
0.1
SE
7
0.4
SE
8
0.4
SE
8
0.2
SSW
5
0.1
SW
5
0.2
SSW
5
0.4
S
5
0.9
ESE
8
0.7
ESE
7
0.3
SE
9
0.4
ESE
7
0.1
SE
10
0.3
SE
7
0.3
SE
10
0.3
SE
9
Energy kJ
22
21
2
18
18
3
1
2
9
81
55
14
15
4
9
14
14
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
10
0.1
SE
9
0.3
SE
9
0.1
E
10
0.4
SE
8
0.1
E
10
0.1
E
7
0.2
ESE
7
0.2
ESE
7
Energy kJ
9
3
13
2
21
2
1
5
5
Wind waves
Height (m)
Direction
Period (s)
0.7
SW
5
1
SW
4
0.7
SW
5
0.3
ENE
3
0.9
ESE
4
0.9
ESE
5
1.2
ESE
5
1.5
SE
6
1.9
ESE
6
1.6
ESE
7
0.3
N
3
1.1
SSW
7
1.1
SSW
6
1.3
SSW
6
Energy kJ
24
40
22
1
29
33
61
159
280
227
1
108
87
106
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
Distance (km)
49
85
156
102
2371
1804
1084
1157
1156
185
24
24
24
24
24
24
160
1084
24
249
221
Best forecast wave conditions in Rhode Island
Rating
(10 max)
2
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
2
2
2
2
3
2
2
3
1
1
3
2
1
3
3
1
2
1
Header Global
Rating
(10 max)
7
5
5
5
9
7
7
5
8
7
5
6
9
8
9
8
5
5
5
4
9
  • 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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