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Surf Forecasts:

Lighthouse-Southside surfForecast / Rhode Island / USA

information circle16 Day Weather and Surf, issued 1 pm Sunday 15 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
Lighthouse-Southside surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lighthouse-Southside sea temperature is
3.0° C
 (Which is 1.4°C colder than average for this time of year)

Best Forecast Surf Conditions for Lighthouse-Southside this week:

The surf forecast for Lighthouse-Southside over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 19) at 8AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.7m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Lighthouse-Southside in the next 16 days are 4.0m 10s and forecast to arrive on Tuesday (Mar 17) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Saturday (Mar 21) at 2AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 19th Mar)2.5ft (0.8m) 9s
Best Surf 8AM (Thu 19th Mar)2.5ft (0.8m) 9s
Most Powerful 2AM (Tue 17th Mar)13ft (4.0m) 10s

Table - best surf conditions forecast for Lighthouse-Southside over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 28mm), heaviest during Mon morning. Icy conditions (max 12°C on Mon night, min -3°C on Tue night). Winds increasing (light winds from the SE on Sun afternoon, near gales from the S by Mon night).

Days 3-6 Weather Summary Mild with light rain (total 6mm) on Fri night Becoming colder with a light covering of snow, mostly falling on Fri night. Icy conditions (max 7°C on Fri afternoon, min 0°C on Wed night). Mainly strong winds.

Sun
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
SSW
1.3
SE
2.4
SSE
3.5
S
4
S
2.5
S
2.5
S
1.3
SSW
1.4
S
1.1
SSE
1.1
SSE
0.9
SSE
0.8
SE
0.8
SSE
0.6
SE
0.6
SE
0.5
SE
0.4
SE
0.4
SE
0.4
SE
0.6
SSW
Period(s) (?)6589101010109998888888887
Wave
Graph
(?)Metric surfscale
Energy kJ (?)13846891602367214371257314334216184118848841553323232038
Wind
(km/h)
20
SE
30
ESE
35
SSE
40
S
30
W
35
W
30
WSW
25
WNW
20
WNW
20
SSW
10
SSE
15
SE
10
SSE
15
SSW
30
SW
25
SW
10
ESE
40
NNE
15
NE
10
SSE
25
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
on		cross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		ononcross-
off		offoffcrosscross-
on
High Tide
/ height (m)
6:10PM
0.82
6:33AM
0.91
6:54PM
0.92
7:17AM
0.97
7:37PM
1.01
8:00AM
1.01
8:18PM
1.09
8:42AM
1.03
9:01PM
1.14
9:25AM
1.02
9:45PM
1.16
10:09AM
0.98
10:31PM
1.15
10:57AM
0.92
Low Tide
/ height (m)
12:23AM
0.01
12:50PM
-0.02
1:04AM
-0.07
1:24PM
-0.09
1:45AM
-0.15
1:58PM
-0.14
2:25AM
-0.20
2:34PM
-0.18
3:07AM
-0.22
3:12PM
-0.20
3:50AM
-0.21
3:52PM
-0.19
4:37AM
-0.17
Sun
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise--6:56--6:54--6:52--6:50--6:50--6:48--6:46
Sunset6:52--6:52--6:53--6:54--6:55--6:57--6:58--
part cloud
part cloud
mod rain
mod rain
rain showers
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
mod snow
light snow
clear
cloud
cloud
Rain (mm)
--8911-----------6----
Temp. °C17101112343-1100125751423
Feels °C (?)-50332-7-5-5-8-4-6-5-4-4-300-9-1-2-4
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Lighthouse-Southside surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Lighthouse-Southside at:
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Information about the Lighthouse-Southside Surf forecast

The above surf forecast table for Lighthouse-Southside provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lighthouse-Southside can be found by selecting the local surf guide option on the grey menu. Our Lighthouse-Southside 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 (Lighthouse-Southside) 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 Lighthouse-Southside 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.

Lighthouse-Southside is 8 km (5 miles) from Narragansett Pier. If you plan a vacation in Rhode Island, look for hotels and other accommodation in Narragansett Pier. Narragansett Pier has rooms for a wide range of budgets as well as car hire and transport links.

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