Surf Forecasts:
Lighthouse surf forecast from 12 Aug 2026:
- Best quality surf: Monday 17 Aug, 5AM (local time) - 3.5ft (1.1m), 6s period, SSW swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 8AM (local time) - 3.5ft (1.1m), 6s period, SSW swell with 95 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 5AM (local time) - 3.5ft (1.1m), 6s period with SSW swell.
Best Forecast Surf Conditions for Lighthouse this week:
The surf forecast for Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 5AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.2m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 16 days are 1.1m 6s and forecast to arrive on Monday (Aug 17) at 8AM. 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 5s period and expected on Thursday (Aug 13) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 17th Aug) | 3.5ft (1.1m) 6s |
| Best Surf | 5AM (Mon 17th Aug) | 3.5ft (1.1m) 6s |
| Most Powerful | 8AM (Mon 17th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Lighthouse over the next 16 days.
The Lowdown
G'day, Rusty here. Let's be straight with you: the next couple of weeks are looking pretty bleak for a decent paddle. We're looking at a long stretch of tiny, weak swell and messy wind for the most part, so don't get your hopes up too high.
The water temp at Lighthouse (Weweantic River) is sitting at a pleasant 73°, which is about 1° warmer than the usual for this time of year – nice for a swim, but you won't be needing the wettie.
We've got a solid run of nothing until Monday the 17th. Even then, we’re just talking about knee-high, 3ft swell from the south with a short 6-second period and combined energy of 96. It's surfable for a logger if you're desperate, but conditions are ordinary. The wind swings light northerly in the morning, so there'll be some clean sections, but the whole affair is pretty weak.
The only real standout window pops up around Saturday the 22nd and Sunday the 23rd. Late on Saturday the 22nd, the swell bumps up to a proper 6ft from the south, with a period of 6 seconds and combined energy jumping to 238. It's still a short-period swell, so it'll be a bit lumpy and sectiony. The wind is a light cross-onshore from the SSE, so it won't be perfect, but there'll be some size. This one is for experienced surfers only – that 6ft will be too much for beginners on a beach break.
Sunday morning the 23rd is the pick of the bunch. The swell drops a touch to 4ft from the SSW, but the wind turns glassy from the NNE and the combined energy is a solid 161. The water will be glassy clean, offering the best chance for a few decent rides. The swell direction from the SSW is a good match for the break's optimum. Keep in mind, this spot can get crowded, and it's a reef and point setup, so be respectful.
After that, it's back to the doldrums. We're into tiny, knee-high dribble for the rest of the month.
So, if you can wait, the 23rd is your day. It's a long way off, but it's the closest thing to a guarantee we've got. For the rest, you're better off checking the wind forecast for a kite session.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Thu morning. Warm (max 28°C on Wed afternoon, min 20°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Sun night. Warm (max 28°C on Mon afternoon, min 18°C on Mon night). Winds decreasing (strong winds from the SSW on Sun night, calm by Mon afternoon). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | SSW 5 | SSW 5 | SE 14 | SE 14 | SSW 5 | SSW 5 | SSW 5 | SE 9 | SSW 5 | S 6 | S 6 | SSW 6 | S 6 | SSW 4 | S 6 | S 6 | SSW 6 | S 7 | S 7 | SSE 7 | SE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 9 | 8 | 7 | 21 | 15 | 9 | 3 | 10 | 7 | 6 | 7 | 12 | 27 | 91 | 78 | 66 | 76 | 23 | 37 | 41 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | glassy | cross-on | cross |
High Tide | 8:17PM1.26m | 8:42AM1.17m | 9:05PM1.23m | 9:29AM1.19m | 9:51PM1.17m | 10:15AM1.17m | 10:35PM1.09m | 11:01AM1.13m | 11:19PM0.99m | 11:47AM1.07m | 00:03AM0.89m | 12:35PM1.01m | 00:51AM0.80m | ||||||||
Low Tide | 2:08PM-0.13m | 2:44AM-0.14m | 2:58PM-0.14m | 3:26AM-0.14m | 3:46PM-0.11m | 4:06AM-0.11m | 4:32PM-0.05m | 4:44AM-0.05m | 5:18PM0.02m | 5:20AM0.01m | 6:04PM0.11m | 5:56AM0.08m | 6:54PM0.20m | ||||||||
 |  |  |  | |  | | |  | | | | |  | | | | | | | | |
 | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 7:49 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — |
mm | — | — | — | 3 | — | — | — | — | 1 | — | — | — | — | — | 31 | — | — | — | — | — | — |
Temp °C | 25 | 28 | 25 | 23 | 28 | 26 | 24 | 26 | 26 | 23 | 23 | 22 | 23 | 23 | 24 | 26 | 28 | 24 | 22 | 23 | 22 |
Feels °C | 26 | 26 | 24 | 23 | 26 | 24 | 23 | 23 | 23 | 21 | 21 | 21 | 21 | 21 | 24 | 27 | 29 | 25 | 23 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 5 | SSW 5 | SE 8 | SE 8 | SSW 5 | SSW 5 | SSW 5 | SE 9 | SSW 5 | S 6 | S 6 | SSW 6 | S 6 | SE 8 | SSE 8 | S 6 | SSW 6 | S 7 | S 7 | SSE 7 | S 6 |
| kJ | 10 | 9 | 3 | 3 | 21 | 15 | 9 | 3 | 10 | 7 | 6 | 7 | 12 | 3 | 7 | 78 | 66 | 76 | 23 | 37 | 19 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 14 | SE 14 | SE 8 | SE 8 | SE 9 | — | SE 9 | SE 9 | SE 9 | SSE 7 | SE 9 | — | — | SSE 8 | SE 8 | E 3 | SSW 7 | SSW 6 | SE 13 |
| kJ | 3 | 3 | 8 | 7 | 3 | 3 | 3 | — | 3 | 3 | 3 | 4 | 3 | — | — | 7 | 2 | 1 | 18 | 4 | 41 |
Swell 3 Height (m) Direction Period (s) | — | SE 11 | SE 11 | SE 10 | SE 10 | SE 13 | — | — | — | — | — | SE 9 | — | — | — | SE 8 | — | — | SSE 8 | SE 14 | SE 7 |
| kJ | — | 5 | 5 | 4 | 4 | 7 | — | — | — | — | — | 3 | — | — | — | 11 | — | — | 14 | 8 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | SW 4 | SW 5 | W 3 | WNW 3 | — | SSW 5 | NNW 3 | N 3 | — | SSW 2 | SW 3 | SSW 4 | S 6 | — | — | — | — | — | SSW 3 |
| kJ | — | — | 15 | 36 | 1 | 3 | — | 19 | 3 | 1 | — | 1 | 1 | 27 | 91 | — | — | — | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2417 | 1046 | 622 | 121 | 2402 | 2398 | 727 | 3448 | 749 | 868 | 749 | 1520 | 1565 | 1723 | 170 | 0 | 1 | 0 | 0 | 614 | 45 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Lighthouse Surf forecast
The above surf forecast table for Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Lighthouse 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) 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 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 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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