
Surf Forecasts:
Lymans surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 8PM (local time) - 2.5ft (0.7m), 19s period, SW swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 2AM (local time) - 3ft (0.9m), 17s period, SSW swell with 528 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 8PM (local time) - 2.5ft (0.7m), 19s period with SW swell.
Best Forecast Surf Conditions for Lymans this week:
The surf forecast for Lymans over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 8PM. The primary swell is predicted to be 0.7m and 19s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Lymans in the next 16 days are 0.9m 17s and forecast to arrive on Friday (Sep 18) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Sep 18) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 15th Sep) | 2.5ft (0.7m) 19s |
| Best Surf | 8PM (Tue 15th Sep) | 2.5ft (0.7m) 19s |
| Most Powerful | 2AM (Fri 18th Sep) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Lymans over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break down this local surf outlook.
Truth is, this is a drawn-out run of tiny, mediocre surf at Lymans (reef and point). The first week and a half is a real grind, with persistent cross-on breezes and a mess of changing swell periods. Water temperature sits right at about 82°, which is just slightly warmer than usual for the time of year – not a big deal, but enough to feel on a calm day.
The real bright spot lands on Monday, September 21st. A 3ft south-southwest swell runs in with a 13-second period, and by the afternoon the wind drops to glassy. For a reef and point, that means a mirror-smooth surface. The energy is moderate (293). This is far and away your best chance for a clean, fun wave over the next two weeks.
After that, things go flat fast. By Tuesday the 22nd, the swell drops to 2ft from the north with a shocking 6-second period – basically just wind chop (energy 26). That kind of short-period stuff has no power to wrap properly into Lymans. It’s a dead zone.
There is one more flicker of hope on Saturday, September 26th. A 2ft south-west groundswell with a 16-second period hits in the afternoon, with glassy conditions. That's a proper long-period pulse, and for a reef and point spot, that will definitely offer the best shape of that week. Crowds are listed as "sometimes," so expect a few others out. The energy is moderate (323), but the wave quality should be the best you’ll see in the second half.
The rest of the outlook is just small, onshore mornings and cross-on afternoons, with most swells barely reaching 2ft. Very tame.
Best bet: Monday afternoon the 21st for that glassy, clean surf, and keep an eye on Saturday afternoon the 26th for a longer-period pulse that could produce the best shape.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Tue afternoon. Warm (max 29°C on Wed morning, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | SW 20 | SW 19 | SW 19 | SSW 18 | SSW 18 | SSW 17 | SSW 18 | SW 16 | SSW 17 | SW 17 | SW 17 | SSW 15 | SW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph | |||||||||||||||||||||
309 | 303 | 372 | 395 | 395 | 364 | 195 | 258 | 528 | 305 | 295 | 270 | 124 | 280 | 346 | 292 | 292 | 269 | 239 | 232 | 173 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross-on | on | cross-on | on | glassy | on | cross-on | glassy | on | glassy | glassy |
High Tide | 5:38PM0.40m | 7:18AM0.65m | 5:51PM0.35m | 8:22AM0.62m | 9:47AM0.61m | 11:11AM0.62m | 11:49PM0.27m | 12:11PM0.65m | 00:48AM0.31m | 12:55PM0.68m | 1:24AM0.37m | ||||||||||
Low Tide | 1:07PM0.28m | 11:47PM0.12m | 2:30PM0.31m | 00:13AM0.14m | 00:49AM0.18m | 1:59AM0.21m | 7:45PM0.22m | 4:02AM0.22m | 7:53PM0.20m | 5:31AM0.20m | 8:07PM0.17m | ||||||||||
6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 6:25 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | |
mm | — | 1 | 1 | — | — | — | — | 2 | 4 | — | 4 | 4 | — | 1 | — | — | — | — | — | 1 | — |
Temp °C | 28 | 28 | 27 | 29 | 29 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 28 |
Feels °C | 31 | 31 | 31 | 32 | 33 | 31 | 30 | 31 | 33 | 32 | 31 | 31 | 31 | 31 | 30 | 31 | 32 | 31 | 32 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 20 | SW 19 | SW 19 | SSW 18 | SSW 18 | SSW 17 | SSW 18 | SW 16 | SSW 17 | SW 17 | SW 17 | SSW 15 | N 6 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
309 | 303 | 372 | 395 | 395 | 364 | 195 | 258 | 528 | 305 | 295 | 270 | 22 | 280 | 346 | 292 | 292 | 269 | 239 | 232 | 173 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SSW 12 | NNE 8 | N 7 | NNE 6 | N 5 | SW 16 | N 8 | SSE 5 | N 7 | SSW 16 | SSE 4 | S 18 | N 6 | N 6 | N 6 | N 6 | N 6 | N 6 | N 6 | N 6 |
40 | 50 | 19 | 28 | 33 | 29 | 124 | 41 | 13 | 24 | 211 | 14 | 225 | 21 | 31 | 23 | 26 | 33 | 27 | 30 | 24 | |
Swell 3 Height (m) Direction Period (s) | NNE 8 | NNE 8 | SW 12 | SW 11 | SW 11 | SSW 11 | N 8 | SSW 18 | SSW 18 | S 16 | SSE 5 | SW 16 | SW 16 | SW 16 | S 8 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSE 6 |
12 | 20 | 37 | 20 | 19 | 12 | 31 | 110 | 61 | 137 | 14 | 127 | 124 | 124 | 33 | 54 | 75 | 54 | 32 | 31 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 4 | — | N 6 | S 5 | N 7 | N 6 | SSW 7 | W 3 | — | — | — | — | — | — | — |
— | — | — | — | — | — | 3 | — | 22 | 11 | 43 | 23 | 9 | 2 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 49 | 3 | 49 | 22 | 0 | 95 | 3 | 0 | 10 | 16 | 22 | 8 | 22 | 0 | 99 | 16 | 0 | 22 | 0 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Lymans Surf forecast
The above surf forecast table for Lymans provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lymans can be found by selecting the local surf guide option on the grey menu. Our Lymans 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 (Lymans) 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 Lymans 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.
Lymans is 94 km (58 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.










