Surf Forecasts:
Lighthouse-Southside surf forecast from 19 Aug 2026:
- Best quality surf: Saturday 22 Aug, 8AM (local time) - 4ft (1.2m), 6s period, SSE swell with offshore winds.
- Most powerful swell: Saturday 22 Aug, 11AM (local time) - 4.5ft (1.4m), 6s period, S swell with 130 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 8AM (local time) - 4ft (1.2m), 6s period with SSE swell.
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 Saturday (Aug 22) at 8AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.4m and 8s. Another secondary swell of 0.1m and 13s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Lighthouse-Southside in the next 16 days are 1.4m 6s and forecast to arrive on Saturday (Aug 22) at 11AM. Winds are predicted to be cross-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 Friday (Aug 21) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 22nd Aug) | 4ft (1.2m) 6s |
| Best Surf | 8AM (Sat 22nd Aug) | 4ft (1.2m) 6s |
| Most Powerful | 11AM (Sat 22nd Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Lighthouse-Southside over the next 16 days.
Short Range ForecastLight rain (total 5mm), mostly falling on Fri night. Warm (max 26°C on Wed afternoon, min 19°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 55mm), heaviest during Sat afternoon. Warm (max 25°C on Mon afternoon, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 7 | SSW 6 | SE 9 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | S 6 | S 6 | S 5 | SE 5 | SE 5 | SSE 6 | S 6 | S 6 | SE 11 | SE 11 | SE 10 | SE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 34 | 19 | 20 | 11 | 11 | 17 | 17 | 17 | 16 | 130 | 61 | 20 | 14 | 14 | 29 | 24 | 28 | 20 | 18 | 17 | 18 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | glassy | cross-on | cross | cross-off | cross | cross-off | cross-off | glassy | cross-off | glassy | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross-on | cross-on |
High Tide | 1:26PM0.94m | 1:43AM0.73m | 2:21PM0.89m | 2:42AM0.69m | 3:20PM0.87m | 3:44AM0.69m | 4:18PM0.88m | 4:44AM0.72m | 5:12PM0.91m | 5:38AM0.77m | 6:01PM0.96m | 6:26AM0.84m | 6:46PM1.01m | ||||||||
Low Tide | 7:57PM0.27m | 7:17AM0.21m | 9:21PM0.30m | 8:20AM0.25m | 10:39PM0.29m | 9:48AM0.27m | 11:36PM0.25m | 11:03AM0.24m | 00:18AM0.20m | 11:56AM0.20m | 00:52AM0.15m | 12:38PM0.14m | 1:22AM0.09m | ||||||||
 |  |  | |  | | | |  |  |  |  | | |  | | | | | | | |
 | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — |
mm | — | — | — | — | — | — | — | — | 5 | 25 | 30 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 24 | 26 | 25 | 24 | 23 | 25 | 22 | 20 | 21 | 20 | 18 | 21 | 22 | 23 | 25 | 25 | 20 | 22 | 21 |
Feels °C | 25 | 24 | 24 | 28 | 25 | 24 | 21 | 23 | 20 | 21 | 24 | 20 | 19 | 22 | 24 | 21 | 22 | 23 | 18 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 6 | SSE 6 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SSW 5 | S 6 | S 6 | S 5 | SE 5 | SE 5 | SSE 6 | S 6 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 34 | 14 | 10 | 11 | 11 | 17 | 17 | 17 | 10 | 130 | 61 | 20 | 14 | 14 | 29 | 24 | 28 | 20 | 13 | 13 | 13 |
Swell 2 Height (m) Direction Period (s) | S 6 | SSE 9 | SE 9 | SSW 3 | S 5 | S 5 | S 5 | — | SE 8 | SE 13 | ESE 8 | SE 6 | SSW 5 | SSW 5 | SSE 12 | SE 12 | SE 11 | SE 5 | SE 11 | SE 6 | SE 11 |
| kJ | 20 | 8 | 20 | 1 | 5 | 2 | 1 | — | 16 | 7 | 6 | 18 | 5 | 4 | 14 | 21 | 19 | 4 | 18 | 5 | 18 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SE 7 | — | S 6 | SE 8 | SW 5 | — | S 14 | SE 14 | SE 9 | SE 9 | SE 9 | SE 12 | SSE 12 | — | E 7 | — | SE 11 | ESE 6 | SE 10 | ESE 6 |
| kJ | 10 | 2 | — | 2 | 11 | 1 | — | 4 | 7 | 3 | 3 | 3 | 6 | 14 | — | 3 | — | 18 | 4 | 17 | 3 |
Wind waves Height (m) Direction Period (s) | — | SSW 6 | SSW 4 | — | — | — | — | — | ESE 3 | — | — | — | — | — | — | — | SW 3 | — | NE 4 | — | — |
| kJ | — | 19 | 4 | — | — | — | — | — | 5 | — | — | — | — | — | — | — | 2 | — | 5 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 173 | 170 | 50 | 173 | 140 | 468 | 2618 | 170 | 0 | 0 | 69 | 127 | 449 | 45 | 50 | 45 | 173 | 104 | 689 | 505 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
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.
Nearest