Surf Forecasts:
Lighthouse-Southside surf forecast from 15 Oct 2026:
- Best quality surf: Wednesday 21 Oct, 8PM (local time) - 3.5ft (1.1m), 10s period, E swell with offshore winds.
- Most powerful swell: Tuesday 20 Oct, 8PM (local time) - 4.5ft (1.4m), 11s period, SE swell with 515 kJ wave energy.
- Next surfable swell (1★+): Wednesday 21 Oct, 8PM (local time) - 3.5ft (1.1m), 10s period with E 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 Wednesday (Oct 21) at 8PM. The primary swell is predicted to be 1.1m and 10s period. 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 11s and forecast to arrive on Tuesday (Oct 20) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Saturday (Oct 17) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 21st Oct) | 3.5ft (1.1m) 10s |
| Best Surf | 8PM (Wed 21st Oct) | 3.5ft (1.1m) 10s |
| Most Powerful | 8PM (Tue 20th Oct) | 4.5ft (1.4m) 11s |
Table - best surf conditions forecast for Lighthouse-Southside over the next 16 days.
Short Range ForecastModerate rain (total 13mm), heaviest on Fri morning. Very mild (max 19°C on Fri afternoon, min 4°C on Sat night). Winds decreasing (fresh winds from the SW on Fri afternoon, light winds from the N by Sun morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Tue afternoon, min 8°C on Tue morning). Winds increasing (calm on Mon morning, fresh winds from the NNE by Wed morning). | |||||||||||||||||||
Thu 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | ||||||||||||||
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) | SSE 10 | SSE 10 | S 5 | SSW 6 | S 7 | S 7 | S 7 | S 8 | S 8 | E 5 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | SE 10 | SE 12 | ESE 11 | ESE 10 | E 10 | ESE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 10 | 9 | 80 | 198 | 187 | 80 | 37 | 10 | 3 | 3 | 4 | 4 | 4 | 14 | 77 | 448 | 419 | 269 | 320 | 166 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | on | cross | cross-off | cross-off | cross-off | cross-off | on | glassy | cross | cross-off | off | off | off | cross-off | off | off | cross-off |
High Tide | 11:40PM0.75m | 12:07PM0.88m | 00:32AM0.70m | 1:00PM0.82m | 1:31AM0.67m | 1:59PM0.79m | 2:34AM0.68m | 2:59PM0.79m | 3:34AM0.73m | 3:57PM0.81m | 4:29AM0.80m | 4:49PM0.86m | ||||||||
Low Tide | 5:18PM0.17m | 4:58AM0.15m | 5:58PM0.22m | 5:40AM0.21m | 6:51PM0.26m | 6:34AM0.26m | 8:09PM0.27m | 7:53AM0.28m | 9:34PM0.24m | 9:32AM0.26m | 10:27PM0.19m | 10:41AM0.19m | 11:07PM0.12m | |||||||
 |  |  | |  | |  |  | | | | | | | | | | | | | |
 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — |
 | 6:05 | — | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 5:59 | — | — | 5:58 | — | — | 5:55 | — |
mm | — | — | 4 | 1 | 6 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 17 | 19 | 18 | 7 | 10 | 6 | 7 | 9 | 10 | 11 | 11 | 11 | 11 | 14 | 12 | 11 | 12 | 10 |
Feels °C | 11 | 9 | 14 | 15 | 16 | 0 | 2 | -3 | 3 | 5 | 6 | 8 | 8 | 8 | 5 | 7 | 6 | 4 | 5 | 4 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSE 10 | — | SE 9 | S 7 | S 7 | S 7 | S 8 | NE 3 | E 5 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | SE 10 | SE 12 | ESE 11 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 6 | 9 | — | 3 | 187 | 80 | 37 | 10 | 2 | 2 | 3 | 3 | 3 | 14 | 77 | 448 | 419 | 269 | 245 | 166 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSW 5 | — | — | — | ESE 9 | SE 9 | SE 9 | S 8 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | ESE 7 | — | — | — | — | — |
| kJ | 10 | 3 | — | — | — | 8 | 3 | 3 | 1 | 3 | 4 | 4 | 4 | 3 | 25 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ENE 4 | E 6 | — | — | — | — | SE 9 | SW 7 | SE 8 | S 6 | E 7 | SE 7 | SE 7 | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | — | — | — | 12 | 2 | 3 | 1 | 1 | 2 | 2 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 4 | ESE 4 | S 5 | SSW 6 | NW 3 | N 4 | N 4 | NNE 4 | NNW 4 | — | — | — | — | — | NNE 3 | — | NNE 3 | NNE 4 | E 10 | — |
| kJ | 2 | 8 | 80 | 198 | 4 | 20 | 19 | 36 | 3 | — | — | — | — | — | 1 | — | 8 | 9 | 320 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 106 | 692 | 632 | 1063 | 121 | 224 | 615 | 118 | 69 | 141 | 370 | 1063 | 394 | 239 | 11 | 11 | 13 | 174 | 4 | 4 |
Best forecast wave conditions in Rhode Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.
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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