Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 am 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
19.3° C
1.0° 

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 9 Jul 2026:

  • Most powerful swell: Wednesday 15 Jul, 2AM (local time) - 7.5ft (2.3m), 7s period, SW swell with 452 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 2.3m 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 1.8m 7s period and expected on Wednesday (Jul 15) at 8AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Wed 15th Jul)7.5ft (2.3m) 7s

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


Alright, this is Rusty, and I’m looking at the outlook for Block Island. And honestly, for the next couple of weeks, it’s a bit of a quiet stretch, but we’ve got a few moments that could be worth a paddle if you’re keen.

The 16-day window starts with a whole lot of nothing. From Thursday, July 9th, right through to Tuesday, July 21st, the surf is just poor. It’s a long run of small, weak, and messy conditions. The swell is tiny, mostly under 3 ft, and the wind is all over the place – cross, cross-on, and onshore for most of it. The wave energy is weak, barely cracking 100 (62-98 range), so don’t expect much push. For a spot that’s a point break and rarely breaks, this is a normal quiet spell; the forecasts can change, but right now it’s a flat spell.

The standouts here are few and far between. The best chance we’ve got lines up on Wednesday, July 15th, and Tuesday, July 21st.

Hit Wednesday morning, July 15th. The wind is glassy – zero, calm – and that’s a massive plus for clean conditions. Swell is from the SW at 4 ft, with a period of 7 seconds. The wave energy is moderate (142). It’s a bit short period, so it’ll be a bit fat, but with glassy conditions, you’ll get some fun, clean lines. The optimum swell direction is SE for Block Island, so this SW swell isn’t perfect, but on a rare-breaking point, you take what you can get. The water temp is about 67°F, which is a bit colder than normal for this time of year, so you’ll want a wetsuit.

Then, on Tuesday, July 21st, we see a bit more size. The morning brings 6 ft from the ESE (combined energy 147), and by the afternoon it’s 7 ft from the SSE (energy 330). That afternoon is a bit bigger, but it’s also cross-on and choppy. The morning might have a slightly cleaner window, but with the wind on it, it’s not going to be pristine. At 7 ft, this is getting into expert territory, especially given the wind. The SSE swell is closer to the optimum SE direction, so it’s got a better angle for the point.

The rest of the period is a write-off. Wednesday, July 22nd, has some size (6 ft, energy 508), but it’s with a risk of thunderstorms, cross-on winds, and lumpy conditions. Not worth the drive.

If you’re desperate, the Wednesday the 15th morning is your best shot. It’s clean, and the point might just offer a few glassy waves. Tuesday the 21st morning has the size, but the wind is a problem. For the rest, it’s a waiting game. This is a rare-breaking spot, and the forecasts can change, but right now, it’s a tough call.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu night. Warm (max 28°C on Fri afternoon, min 18°C on Sat night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Sun afternoon, min 18°C on Sun night). Winds increasing (light winds from the NE on Sun night, fresh winds from the SW by Tue afternoon).

Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
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
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)
0.5
E
7
1.1
SW
5
0.9
SSW
5
0.6
SSW
6
0.7
SSW
6
0.8
SSW
7
0.8
SSW
7
0.7
SSW
7
0.6
S
7
0.6
SSW
7
0.6
SSW
7
0.3
SE
10
0.3
SE
9
0.4
SE
9
0.4
ESE
9
1.1
SW
5
1.8
SW
6
2.3
SW
7
1.2
SW
7
0.9
SW
6
0.6
SW
6
Wave Graph
Metric surfscale
Energy kJ
26
51
38
24
33
69
65
48
35
43
42
16
14
21
32
54
215
452
124
64
26
Wind (km/h)
25
SW
30
SSW
25
SSW
15
WSW
20
W
10
NW
15
ENE
20
ENE
20
NE
20
ENE
25
E
10
ENE
10
ESE
10
SSE
15
SSW
25
SW
35
SW
30
SW
0
ESE
15
SE
10
W
Wind State
cross
cross-on
cross-on
cross
cross-off
off
cross-off
cross
cross-off
cross
cross-on
cross
cross-on
on
cross-on
cross
cross-on
cross
glassy
on
cross-off
High Tide
3:38PM0.97m
4:07AM0.72m
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
Low Tide
8:46AM0.05m
10:44PM0.11m
9:48AM0.03m
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
clear
clear
rain showers
part cloud
part cloud
rain showers
part cloud
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:22
5:22
5:24
5:24
5:24
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:20
8:20
8:19
8:19
8:17
8:17
8:16
 mm
1
1
1
Temp °C
22
22
22
23
28
28
21
21
20
21
22
21
19
19
19
20
21
22
24
24
23
Feels °C
21
20
20
25
27
28
22
21
18
17
18
19
18
17
16
17
17
19
26
24
23
  • 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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