Block Island Surf Break

Lat Long: 41.15° N 71.59° W

Block Island Surf Forecast and Surf Report

Issued: 1 am 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Block Island sea temperature is
20.1° C
0.8° 

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 15 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 2AM (local time) - 10ft (3.0m), 9s period, SSW swell with offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 2AM (local time) - 10ft (3.0m), 9s period, SSW swell with 1,604 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 15 Jul, 8PM (local time) - 4.5ft (1.4m), 6s period with SW 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 Wednesday (Jul 15) at 8PM. The primary swell is predicted to be 1.4m and 6s period with a secondary swell of 1.2m and 6s. Another secondary swell of 0.2m and 9s is also forecast. 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 3.0m 9s and forecast to arrive on Wednesday (Jul 22) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Jul 15) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 15th Jul)4.5ft (1.4m) 6s
Best Surf 2AM (Wed 22nd Jul)10ft (3.0m) 9s
Most Powerful 2AM (Wed 22nd Jul)10ft (3.0m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s be straight with you – this is a tough one for Block Island. I’ve looked over the next 16 days, and honestly, there’s nothing that gets me fired up. The whole run is a long stretch of poor surf conditions, with hardly a window that’s worth paddling out for.

The first sign of any swell comes in on Wednesday, July 15th, with a SW swell around 4 ft, but it’s a short-period 6-second windswell, and the wind is howling cross-off at 16 mph. That combo makes for weak, messy waves. The combined energy is only 154 (weak), so it’s not packing any punch. For the next several days, it’s a real bummer – tiny waves, lumpy cross-chop, and onshore winds just kill any hope. There’s a gap of nearly a week of nothing but poor surf.

Temperatures are about average for the time of year at 68°, so nothing weird there.

We do see a bump in size around Monday, July 20th, with a 6 ft S swell and a 9-second period. The combined energy jumps to 567 (moderate), which is promising. But the wind is cross-on from the E and SE, making it choppy. The swell is too big for beginners at that size, and with the onshore wind, it’s just a lumpy mess. It could be better for a kite surfer than a paddle surfer, to be honest.

The only sliver of hope comes on Wednesday, July 22nd, with a solid 7 ft SSW swell and a 9-second period (energy 739 – moderate). The wind is a clean cross-off from the W at 12 mph, which is a major positive. That’s the best-looking window of the whole forecast, but it’s still rated as marginal. This size is for experienced surfers only, and the spot is a point break that rarely breaks, so you’d be gambling on it. The optimum swell direction is SE, and this is coming from the SSW, so it’s not a perfect match.

After that, the following week is more of the same with small, onshore, choppy slop. The last few days of July and into the 30th show some longer period swell (11 seconds), but the height is tiny at 2 ft, and the wind is cross-on again.

Bottom line: Block Island is a quiet corner for the next 16 days. If you’re desperate, the morning of July 22nd is your best bet, but don’t expect magic. The setup looks more interesting for kite surfing than paddle surfing for most of it. Forecasts can change, but right now, it’s a long, blank run.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 31°C on Wed afternoon, min 22°C on Fri morning). Winds increasing (calm on Wed night, fresh winds from the SW by Thu afternoon).

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Sat afternoon. Warm (max 24°C on Sun afternoon, min 19°C on Sat afternoon). Winds decreasing (fresh winds from the SSW on Sat night, calm by Sun night).

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
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
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SW
6
1.4
SW
6
0.9
SSW
6
0.8
SSW
6
0.9
SSW
6
0.7
SSW
6
0.5
SSW
5
0.4
SSW
5
0.4
SSW
5
0.5
SSW
5
0.4
SSW
5
1.5
SSW
6
1.4
SW
7
1.4
SSW
7
1.4
S
8
1.8
S
9
1.8
S
9
1.4
S
9
1.7
S
9
2.2
SSW
8
3
SSW
9
Wave Graph
Metric surfscale
Energy kJ
136
146
61
40
63
28
15
10
8
15
8
138
178
208
245
561
528
304
439
599
1604
Wind (km/h)
25
W
20
W
5
NNW
10
WSW
35
SW
10
NE
5
WSW
20
SW
10
SW
20
SW
25
S
35
SW
30
W
25
WSW
20
ENE
20
E
15
SE
15
S
30
SSW
30
SW
20
NNW
Wind State
cross-off
cross-off
glassy
cross
cross
cross-off
glassy
cross-on
cross-on
cross
cross-on
cross-on
cross-off
cross
cross
cross-on
cross-on
on
cross-on
cross
off
High Tide
9:10AM0.96m
9:34PM1.10m
10:03AM0.99m
10:23PM1.05m
10:56AM1.00m
11:11PM0.97m
11:49AM0.98m
00:00AM0.88m
12:42PM0.95m
00:50AM0.79m
1:37PM0.91m
1:44AM0.71m
2:35PM0.87m
2:44AM0.66m
Low Tide
3:06PM-0.07m
4:10AM-0.07m
4:06PM-0.04m
4:57AM-0.05m
5:07PM0.01m
5:43AM-0.02m
6:08PM0.07m
6:28AM0.03m
7:10PM0.13m
7:13AM0.09m
8:13PM0.18m
8:00AM0.14m
9:16PM0.21m
clear
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part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
mod rain
rain showers
part cloud
part cloud
part cloud
clear
part cloud
part cloud
rain showers
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:26
5:28
5:28
5:30
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:16
8:16
8:15
8:15
8:15
8:14
8:13
 mm
6
8
2
2
Temp °C
27
31
31
26
27
28
23
26
25
23
21
22
23
24
24
21
22
23
23
23
24
Feels °C
26
30
29
25
22
26
22
22
21
23
19
19
20
22
27
20
23
24
23
22
25
  • 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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