Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.9° C
0.9° 

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 5 Aug 2026:

  • Most powerful swell: Monday 10 Aug, 5AM (local time) - 5ft (1.5m), 7s period, SSW swell with 186 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 1.5m 7s and forecast to arrive on Monday (Aug 10) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Mon 10th Aug)5ft (1.5m) 7s

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


The Lowdown

Alright, let’s get straight into it.

Honestly, I’ve been staring at the charts for the next couple of weeks and it’s pretty grim out there. We’ve got a long stretch with nothing worth paddling out for. The swell is weak and the wind is mostly blowing the wrong way, so the surface will be a mess. Don’t get too excited about any of this, it’s a waiting game.

The first few days, through the 7th, are basically a write-off. We’re looking at ankle-biters around the 2 ft to 3 ft mark, with cross-onshore winds that’ll have it chopped up and ugly. The energy is weak, and it's just a lot of paddling for nothing.

Things stay pretty flat and messy right through the weekend and into the middle of next week. There’s a bit more push on the 10th, with the swell trying to nudge up to 4 ft to 5 ft, but it’s still coming from the SSW with a short period of 7 seconds, and the wind is cross-onshore. There’s a bit more water moving, but it’s just not going to be clean. You’d be fighting the chop the whole time.

The 15th morning might give you a glimmer of hope. We’ve got a glassy morning with a 4 ft swell, but it’s still short-period at 6 seconds. It’s better than nothing, but it’s not going to be a classic. For the most part, the period stays under 8 seconds, so it’s all windswell and no real push or shape to it.

The long-range stuff around the 20th is still too far out to trust weather-wise, and the size is still not there. We might see some cleaner conditions with offshore winds on the 17th and 18th, but the swell is tiny. There’s just no consistent, quality surf on the horizon. The 18th afternoon does see the energy pick up, but the swell height is still only around 4 ft and the period is 7 seconds, which still isn't great. It’s just more of the same.

The only real standout, if you can call it that, is Block Island. It’s a point break that rarely breaks, and even though it's got that exposed SE facing, the swell is just too weak and short-period to do anything with. It’s a tough call to even suggest it, but if you’re desperate, the glassy morning on the 15th is probably your best bet for a clean, if small, wave. Also, that morning of the 12th is glassy too, but the swell is only a bit over 2 ft. It's about as good as it's going to get, which isn't saying much.

We just have to sit tight and wait for a better swell to fill in. It can’t stay this poor for long. Forecasts change, so keep an eye on it, but as it stands, I’d be finding something else to do for the next two weeks. This is a blank run, plain and simple.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Fri night. Warm (max 28°C on Fri afternoon, min 23°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Warm (max 28°C on Sun afternoon, min 23°C on Sat morning). Wind will be generally light.

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
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)
0.7
SSW
7
0.6
SSW
7
0.6
SSW
6
0.8
SSW
6
1.1
SSW
6
1.3
SSW
6
1
SSW
6
1
SSW
6
1.2
SSW
6
1
SSW
6
1
SSW
6
1.3
SSW
6
1.1
SSW
6
1.1
SSW
7
1.4
SSW
6
1.3
SSW
7
1.4
SW
7
1
SSW
7
0.8
SSW
6
0.7
SSW
6
0.7
SSW
6
Wave Graph
Metric surfscale
Energy kJ
51
35
30
42
71
123
70
75
84
72
70
107
93
113
160
154
183
85
51
37
44
Wind (km/h)
15
SW
20
SW
15
SW
20
SW
25
SSW
20
SW
15
SW
25
SW
15
SW
20
WSW
25
SW
20
W
15
WSW
25
SW
20
SW
20
SW
25
SW
20
SW
15
WNW
25
SW
15
W
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross-off
cross
cross
cross
cross
cross-on
cross
cross-off
cross
cross-off
High Tide
1:08PM0.94m
1:35AM0.74m
2:09PM0.95m
2:40AM0.71m
3:20PM0.97m
3:52AM0.71m
4:35PM1.00m
5:04AM0.75m
5:43PM1.04m
6:10AM0.82m
6:44PM1.08m
7:08AM0.90m
7:37PM1.09m
Low Tide
7:51PM0.16m
7:16AM0.08m
9:20PM0.16m
8:19AM0.08m
10:36PM0.14m
9:31AM0.06m
11:40PM0.10m
10:49AM0.03m
00:36AM0.05m
12:02PM-0.01m
1:27AM0.00m
1:07PM-0.05m
2:13AM-0.03m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
clear
rain showers
part cloud
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:46
5:47
5:48
5:48
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:57
7:55
7:54
7:52
7:52
7:51
 mm
3
1
3
Temp °C
23
25
25
25
27
26
26
28
28
24
25
25
26
28
27
25
26
25
25
26
26
Feels °C
23
22
27
27
27
27
28
27
27
24
24
25
26
26
26
26
25
25
25
25
25
  • 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
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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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