Surf Forecasts:
Lymans surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 2.5ft (0.7m), 17s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 2.5ft (0.7m), 17s period, SSW swell with 311 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 8PM (local time) - 1.5ft (0.5m), 16s 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 Thursday (Aug 20) at 8PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.5m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Lymans in the next 16 days are 0.7m 17s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 16s period and expected on Thursday (Aug 27) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 20th Aug) | 1.5ft (0.5m) 16s |
| Best Surf | 2AM (Fri 21st Aug) | 2.5ft (0.7m) 17s |
| Most Powerful | 2PM (Wed 26th Aug) | 2.5ft (0.7m) 17s |
Table - best surf conditions forecast for Lymans over the next 16 days.
The Lowdown
Alright, Rusty here. Let's chew the fat on what Lymans has cookin'. It's gonna be a slow grind for a while, that's for sure.
First thing's first, the water's a balmy 82°F, which is a couple degrees warmer than we'd usually see this time of year. Not a huge deal, but you'll notice it – spring suits are staying in the truck.
From right now through the end of August, it's pretty much a bust. Swell is flat-out small, mostly around 2 feet from the SSW, and the wind is on it or cross-onshore for days on end. The wave energy is mediocre, sitting in that moderate range. The best you'll see in this stretch is Sunday the 23rd – the wind goes glassy, but it's only 2 feet of swell. You could get wet, but it's not going to be a session to remember. We're staring down a long, quiet spell of marginal-to-poor conditions for the next week and a half.
The first real sign of life shows up on the morning of Tuesday, September 1st. A clean 2-foot groundswell from the SSW with a very long period of 18 seconds, glassy north winds, and the energy reading jumps to 447 (moderate). With that long period, Lymans being a reef and point break is a good thing – it should wrap around and offer up some proper waves instead of just closing out. For a beginner-friendly wave, this is your best shot for some clean, rideable lines.
Then we get a notable uptick in size heading into the 3rd and 4th of September. Thursday afternoon the 3rd brings 3-foot WNW swell with an 18-second period, hitting 750 on the energy scale (strong). The cross-shore wind will mess with the perfection, though. The real standout looks like Friday morning the 4th: 4 feet of WNW swell, 16-second period, and the energy pumps up to 825 (strong). That's a solid, powerful wave. It's still okay for a decent intermediate, but beginners are going to find it a handful. That's your best bet for the whole 16-day window – but remember it's over a week out, so keep your expectations tempered.
The short of it is: this month ends in a whimper. If you're desperate, there's tiny glassy moments on the 23rd and 30th. For something proper, pencil in the 1st of September morning, and keep a close eye on that Friday the 4th.
– Rusty
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 28°C on Thu morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Mon afternoon. Warm (max 28°C on Sun morning, min 26°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 18 | SW 17 | SW 17 | SW 16 | SSW 16 | SW 16 | SSW 16 | SW 15 | SSW 15 | WNW 12 | WNW 11 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 15 | SSW 17 | SSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 209 | 142 | 291 | 127 | 164 | 261 | 164 | 112 | 148 | 174 | 125 | 186 | 158 | 137 | 147 | 201 | 179 | 120 | 184 | 300 | 178 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | on | cross-on | cross-on | cross-on | on | glassy | cross-on | glassy | glassy | on | cross | glassy | on | glassy | cross | cross-on | on | glassy |
High Tide | 10:49AM0.62m | 12:03PM0.64m | 11:25PM0.26m | 12:57PM0.68m | 00:50AM0.28m | 1:39PM0.72m | 1:36AM0.32m | 2:13PM0.76m | 2:13AM0.36m | 2:44PM0.78m | 2:47AM0.41m | 3:13PM0.79m | 3:22AM0.46m | ||||||||
Low Tide | 3:13AM0.18m | 8:42PM0.25m | 8:46PM0.22m | 5:56AM0.15m | 9:01PM0.19m | 6:51AM0.12m | 9:19PM0.16m | 7:36AM0.10m | 9:37PM0.14m | 8:17AM0.08m | 9:57PM0.12m | ||||||||||
 | |  | |  | | | | | |  |  |  | |  | | | | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | 3 | 2 | 2 | 3 | — | 1 | 1 | 2 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 27 | 26 |
Feels °C | 31 | 31 | 31 | 32 | 31 | 30 | 32 | 31 | 31 | 32 | 32 | 31 | 31 | 32 | 31 | 31 | 33 | 30 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SW 17 | SW 17 | SW 16 | W 11 | SW 16 | SSW 16 | WNW 11 | WNW 11 | WNW 12 | WNW 11 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | NNE 6 | SSW 15 | SSW 14 | SSW 15 | S 19 | S 18 |
| kJ | 209 | 142 | 291 | 127 | 83 | 261 | 164 | 88 | 140 | 174 | 105 | 186 | 158 | 137 | 121 | 31 | 179 | 120 | 184 | 480 | 399 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | W 11 | W 10 | W 10 | SSW 16 | S 13 | W 10 | N 6 | S 13 | N 6 | N 6 | WNW 11 | N 6 | SSE 12 | SSW 16 | SSE 10 | N 5 | S 18 | N 5 | SSW 17 | SSW 13 |
| kJ | 40 | 61 | 53 | 51 | 164 | 130 | 51 | 27 | 130 | 26 | 36 | 85 | 16 | 109 | 147 | 86 | 20 | 165 | 12 | 300 | 178 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | S 15 | SSE 15 | SSW 18 | S 13 | W 10 | S 12 | SW 15 | SSW 15 | SSW 16 | SSW 15 | N 6 | NW 11 | N 6 | SSE 7 | SSW 16 | SSW 12 | N 5 | S 19 | N 10 | S 16 |
| kJ | 46 | 38 | 71 | 64 | 85 | 51 | 73 | 112 | 148 | 144 | 125 | 25 | 57 | 15 | 17 | 201 | 81 | 14 | 183 | 77 | 188 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 2 | WSW 9 | NNW 3 | S 3 | NNW 5 | — | — | N 5 | — | — | N 5 | SE 5 | — | — | — | — | — |
| kJ | — | — | — | — | 1 | 7 | 4 | 4 | 17 | — | — | 14 | — | — | 21 | 29 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 52 | 3 | 0 | 49 | 16 | 3 | 49 | 22 | 0 | 52 | 0 | 0 | 95 | 2 | 0 | 122 | 0 | 3 | 11 | 99 | 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.
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