Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Issued: 7 pm 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
19.4° C

Normal for this time of year

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 6 Jul 2026:

  • Most powerful swell: Monday 6 Jul, 11PM (local time) - 6.5ft (2.0m), 7s period, ESE swell with 346 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 2.0m 7s and forecast to arrive on Monday (Jul 06) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Wednesday (Jul 08) at 5PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Mon 6th Jul)6.5ft (2.0m) 7s

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, and I’m looking at the forecast for Block Island. Straight up, I gotta be honest with you – this is a rough run. The data shows a long stretch ahead with hardly any real surf to get excited about. For the first week and a half, it’s pretty much a bust. The swell is small, the wind is mostly junk, and the conditions are just not cooperating. There’s a big gap of about nine days where you’d be better off doing something else. The only faint glimmer of hope is way out there, and it’s a long shot.

Let’s start with the beginning. Monday the 6th is a write-off. We’ve got a 5 ft ESE swell but it’s getting hammered by a 19 mph cross-onshore wind. Combined energy is weak (161) and the period is a short, weak 6 seconds. It’s lumpy and messy. That afternoon gets even uglier with 28 mph winds. Tuesday the 7th is cleaner but still no good – the swell is too small and weak. This pattern just keeps repeating: small, weak swell from the south or east, with onshore or cross-shore winds. Thursday the 9th, Friday the 10th, Saturday the 11th… all the same story. The wave comment says “poor surf conditions” for nearly every single slot. The energy values are mostly in the double digits or low triple digits, just a weak, weak pulse.

Now, there is one moment that stands out, but it’s a long way off. On Wednesday morning, July 15th, the wind goes glassy. That’s a huge deal. The swell is a modest 5 ft from the SSW with a 7-second period, and the combined energy is moderate (198). It’s not a big swell, but glassy conditions at Block Island can make almost anything rideable. The problem is it’s barely surfable, with a score that barely registers as “ordinary.” It’s the only window in the whole 16 days that even gets a mention of being rideable. After that, the 16th and 17th drop back to tiny, glassy conditions but with almost no swell.

Looking further out, the 18th and 19th of July show a bump in size – 6 ft to 8 ft from the SSW/SW with energy jumping up to 908 on the 19th. But the wind is cross or strong cross-onshore, and the comments are all “messy” and “poor.” That’s the kind of setup that’s more interesting for a kite than a paddle board around here, especially with those short periods.

So, if you’re a surfer looking for a clean, proper session, the only real standout is that Wednesday morning, July 15th. Get up early, hope the glassy wind holds, and you might snag a few clean, small waves. But it’s a long way off and very uncertain. For the rest of this stretch, it’s a waiting game. The water temp is about average for the season around Block Island, but that won’t help the surf. Hang in there.

Rusty.

Short Range Forecast

Heavy rain (total 67mm), heaviest during Mon afternoon. Warm (max 21°C on Sun night, min 17°C on Mon afternoon). Winds decreasing (strong winds from the E on Mon night, light winds from the SSE by Wed afternoon).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Fri night. Warm (max 25°C on Fri afternoon, min 20°C on Fri night). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Fri night).

Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sun
12
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
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)
0.4
SE
9
1.6
ESE
6
1.8
ESE
6
1.8
ESE
7
1.6
ESE
6
1.7
E
6
1.1
E
7
1.2
ENE
6
0.9
E
7
0.7
E
7
0.6
E
7
1.2
SSW
5
1.4
SSW
5
1
SSW
6
0.8
SSW
6
0.7
SSW
7
0.8
S
8
0.8
SSW
8
0.7
SSW
8
0.7
SSW
8
0.4
SE
10
Wave Graph
Metric surfscale
Energy kJ
20
160
223
297
225
225
104
113
70
45
43
56
102
60
44
45
74
75
62
60
31
Wind (km/h)
20
ENE
30
ESE
45
E
40
E
30
NE
40
ENE
30
NNE
20
NNE
15
SSW
25
SW
25
SW
35
SSW
25
WSW
10
WSW
25
NNW
10
WNW
20
NE
15
SE
10
S
10
S
20
SSW
Wind State
cross
cross-on
cross-on
cross-on
cross-off
cross
cross-off
cross-off
cross-on
cross
cross
cross-on
cross
cross
off
cross-off
cross-off
cross-on
on
cross-on
cross-on
High Tide
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
5:15AM0.75m
5:51PM1.08m
6:19AM0.80m
6:53PM1.12m
Low Tide
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
11:48PM0.07m
10:52AM-0.01m
00:47AM0.02m
11:58AM-0.05m
mod rain
light rain
heavy rain
heavy rain
light rain
light rain
cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
light rain
rain showers
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:20
5:20
5:20
5:22
5:22
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:21
8:21
8:21
8:20
8:20
8:19
8:19
 mm
8
4
21
27
3
4
1
2
Temp °C
21
19
18
19
19
18
18
19
21
21
22
23
22
24
25
21
22
24
22
22
22
Feels °C
20
14
12
14
17
14
13
17
22
20
22
21
19
26
25
22
20
22
21
23
22
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
9
0.1
SW
5
0.1
SE
10
0.2
SSW
5
0.3
SSW
5
1.1
E
7
0.3
SE
9
0.9
E
7
0.7
E
7
0.6
E
7
0.5
E
7
0.4
E
7
1
SSW
6
0.8
SSW
6
0.7
SSW
7
0.8
S
8
0.8
SSW
8
0.7
SSW
8
0.7
SSW
8
0.5
SSW
7
Energy kJ
20
1
4
3
5
104
13
70
45
39
26
16
60
44
45
74
75
62
60
31
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
5
0.1
SW
5
0.1
SE
10
0.1
S
6
0.3
S
5
0.2
SSW
6
0.3
SE
9
0.4
SSW
7
0.3
SE
9
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.5
E
4
0.3
ESE
5
0.4
SE
10
Energy kJ
4
1
4
1
5
3
13
15
13
15
15
14
14
14
14
14
8
5
23
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.3
SE
9
0.1
E
11
0.3
SSW
5
0.3
SE
9
0.4
SE
9
0.3
E
7
0.2
E
7
0.1
E
7
0.1
E
8
0.3
SE
10
0.3
SE
10
0.1
E
9
Energy kJ
4
14
2
6
13
21
9
4
1
1
14
14
2
Wind waves
Height (m)
Direction
Period (s)
0.4
ESE
3
1.6
ESE
6
1.8
ESE
6
1.8
ESE
7
1.6
ESE
6
1.7
E
6
0.8
NNE
4
1.2
ENE
6
0.9
NE
6
0.7
SW
6
1.2
SSW
5
1.4
SSW
5
0.4
NE
3
0.8
NE
4
0.7
ENE
4
0.3
SE
3
Energy kJ
3
160
223
297
225
225
26
113
54
43
56
102
2
20
18
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
1496
397
1804
256
336
157
24
24
130
131
131
198
201
24
49
24
25
26
26
634
1422
Best forecast wave conditions in Rhode Island
Rating
(10 max)
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
3
2
1
3
2
2
3
2
2
3
2
1
2
1
1
3
3
1
3
2
Header Global
Rating
(10 max)
6
7
8
7
5
5
9
6
9
9
5
6
5
4
5
5
4
5
4
4
5
  • 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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