Surf Forecasts:
Lighthouse surf forecast from 20 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 8PM (local time) - 6.5ft (2.0m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 11AM (local time) - 7.5ft (2.3m), 9s period, S swell with 885 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 5AM (local time) - 2.5ft (0.8m), 8s 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 (Jul 20) at 5AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 16 days are 2.3m 9s and forecast to arrive on Wednesday (Jul 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 0.8m 4s period and expected on Monday (Jul 27) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 20th Jul) | 2.5ft (0.8m) 8s |
| Best Surf | 8PM (Wed 22nd Jul) | 6.5ft (2.0m) 9s |
| Most Powerful | 11AM (Wed 22nd Jul) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Lighthouse over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's break down what's happening at Point Judith and the Lighthouse reef for the next couple of weeks.
Right off the bat, it's pretty flat. The first few days are a total loss with tiny, weak waves and messy wind. Monday the 20th has some small 3ft south swell, but it's nothing to write home about. Things stay quiet and small through Tuesday and Wednesday morning, with a lot of poor conditions and very little energy.
Now, Wednesday the 22nd afternoon is where things start to get interesting. We've got a solid 8ft south-southwest swell pushing in, with a moderate wave energy reading of 808. The wind is cross-off from the southwest, keeping the surface clean. This is a chunky size though, well over 5ft, so it's not for the beginners. It's a raw power session for the experienced crew.
The real standout of this whole forecast, and the one I'd circle on the calendar, is Thursday the 23rd. The morning session at the Lighthouse is looking prime. We've got a clean 4ft south swell with a 9-second period, and a solid moderate energy reading of 281. The wind is from the north-northwest at 9 mph, blowing cross-offshore. That's about as good as it gets for a clean, hollow wave on this reef. The water temp is about average for the time of year, so no surprises there.
After Thursday, the window slams shut again. Friday through the end of July and into the first few days of August is a desert. We're looking at a long stretch of small, weak swells, poor wind, and mostly cross-shore or onshore conditions. There's a lot of days where the energy is down in the double digits. It's a proper dry spell.
There is a flicker of hope on Sunday, August 2nd. The morning brings a 4ft south-southwest swell with a decent energy reading of 228 and clean conditions. But it's a long way off, and the afternoon wind picks right up, so keep your expectations in check for that one.
Bottom line: If you've got a window, make it Thursday morning the 23rd. That's the only real highlight in this 16-day stretch. The rest is a long, quiet gap with very little worth paddling out for.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Tue night. Warm (max 25°C on Wed afternoon, min 18°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Wed night, min 15°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 8 | S 8 | S 7 | S 7 | S 7 | SSE 6 | S 6 | S 9 | SSW 9 | S 10 | S 9 | S 8 | S 8 | SSW 8 | SE 7 | SE 8 | SE 7 | SE 7 | SE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 94 | 74 | 52 | 36 | 24 | 77 | 135 | 885 | 808 | 723 | 247 | 173 | 105 | 90 | 77 | 67 | 51 | 49 | 47 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | glassy | cross-on | cross-off | cross-on | cross-on | off |
High Tide | 00:42AM0.92m | 1:15PM1.01m | 1:33AM0.84m | 2:09PM0.97m | 2:26AM0.77m | 3:03PM0.94m | 3:22AM0.73m | 3:59PM0.93m | 4:18AM0.71m | 4:52PM0.94m | 5:13AM0.73m | 5:42PM0.97m | |||||||
Low Tide | 6:52AM0.06m | 7:49PM0.16m | 7:39AM0.12m | 8:58PM0.22m | 8:30AM0.17m | 10:09PM0.24m | 9:30AM0.20m | 11:12PM0.23m | 10:32AM0.21m | 00:04AM0.21m | 11:28AM0.20m | 00:47AM0.17m | |||||||
 | | |  |  |  |  |  | |  | | | | | | | | | | |
 | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — |
 | 8:15 | — | 8:14 | — | — | 8:13 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:09 | — |
mm | — | — | — | — | — | 2 | 22 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 23 | 21 | 22 | 22 | 22 | 24 | 25 | 25 | 20 | 23 | 22 | 21 | 22 | 20 | 22 | 24 | 20 |
Feels °C | 20 | 20 | 19 | 18 | 20 | 20 | 21 | 24 | 24 | 26 | 16 | 21 | 20 | 21 | 20 | 19 | 20 | 22 | 19 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | S 8 | S 7 | S 7 | S 7 | SE 8 | S 6 | — | — | S 10 | S 9 | S 8 | S 8 | SSW 8 | SSW 8 | SE 8 | SE 7 | SE 7 | SE 7 |
| kJ | 94 | 74 | 52 | 36 | 24 | 2 | 135 | — | — | 723 | 247 | 173 | 105 | 90 | 47 | 67 | 51 | 49 | 47 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 8 | SE 8 | SE 11 | S 12 | — | — | — | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 |
| kJ | 6 | 6 | 6 | 3 | 3 | 5 | 3 | — | — | — | 33 | 64 | 59 | 57 | 56 | 43 | 15 | 15 | 8 |
Swell 3 Height (m) Direction Period (s) | SE 8 | — | SE 8 | S 12 | S 12 | — | — | — | — | — | ENE 4 | — | — | — | — | E 4 | — | — | S 7 |
| kJ | 2 | — | 3 | 3 | 3 | — | — | — | — | — | 1 | — | — | — | — | 6 | — | — | 4 |
Wind waves Height (m) Direction Period (s) | NNW 2 | — | SW 3 | S 4 | SSE 4 | SSE 6 | — | S 9 | SSW 9 | NNW 3 | NNE 3 | — | — | ENE 4 | SE 7 | — | ENE 4 | — | — |
| kJ | 1 | — | 2 | 11 | 17 | 77 | — | 885 | 808 | 3 | 2 | — | — | 13 | 77 | — | 5 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 727 | 186 | 1164 | 1164 | 23 | 108 | 23 | 5 | 0 | 1 | 8 | 0 | 23 | 0 | 0 | 868 | 27 |
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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