Surf Forecasts:
Kealia surf forecast from 10 Sep 2026:
- Most powerful swell: Thursday 17 Sep, 8AM (local time) - 7ft (2.1m), 8s period, E swell with 545 kJ wave energy.
Best Forecast Surf Conditions for Kealia this week:
The most powerful waves expected at Kealia in the next 16 days are 2.1m 8s and forecast to arrive on Thursday (Sep 17) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 13s period and expected on Thursday (Sep 10) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Thu 17th Sep) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Kealia over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s happening at Kealia. I’ve gotta be straight with you – this outlook is a tough one.
Right off the bat, I don’t have any good surf to recommend. The whole 16-day window from September 10th through September 25th is basically a write-off for quality waves. There is no standout day, no hidden gem, nothing worth paddling out for unless you’re desperate for a float. The first record shows Thursday the 10th with 4ft from the ENE on a short 8-second period, but it’s a total mess – cross-on wind at 15 mph with risk of thunderstorms. That combo means choppy, junky conditions with weak energy (342). It’s just poor.
This stretch is long. From the 10th right through to the 25th, every single session is flagged as “poor surf conditions”. That’s a 16-day gap with no recommendation. For Kealia, a beach and reef setup that’s fairly consistent on average, a blank run like this is a bit more unusual, but it happens. The wind is nearly always onshore – from the E or ENE – and the swell direction is locked into the NE to E, which isn’t ideal for this open spot that really wants NE swell to light up. The period stays short, mostly 8 to 10 seconds, so you’re looking at weak, wind-affected slop. The combined energy does climb into the moderate 500s and 600s around the 22nd and 23rd, with 6ft to 6ft ENE swell, but the wind stays onshore – no clean face to be found.
Water temp at the start is 80°, which is right about average for this time of year – nothing weird there. But with the onshores and short period, that’s all you’re getting.
If you’re looking at the bigger swells late in the window – like around 7ft on the 17th and 18th – those are too big for beginners anyway (over 5ft), and with the wind on it, it’s really only for experts or anyone who enjoys a beatdown. Honestly, with the steady onshores and a beach-and-reef setup, this looks more like a kite surfing stretch than a paddle surf one.
Keep your eyes on the forecasts, though – Kealia can turn around fast. For now, it’s a skip.
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 26°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 26°C on Tue morning, min 24°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | ENE 8 | E 7 | ENE 7 | E 7 | E 11 | ENE 11 | E 10 | E 10 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | E 8 | E 10 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 202 | 320 | 245 | 125 | 350 | 436 | 196 | 154 | 138 | 152 | 129 | 126 | 100 | 82 | 45 | 128 | 121 | 89 | 63 | 219 | 324 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on |
High Tide | 2:45PM0.72m | 3:04AM0.59m | 3:10PM0.67m | 3:44AM0.63m | 3:31PM0.61m | 4:24AM0.65m | 3:48PM0.55m | 5:05AM0.65m | 4:00PM0.50m | 5:50AM0.63m | 4:02PM0.45m | 6:45AM0.61m | 3:21PM0.43m | ||||||||
Low Tide | 8:13AM0.12m | 9:10PM0.15m | 8:56AM0.16m | 9:30PM0.13m | 9:39AM0.22m | 9:51PM0.11m | 10:22AM0.27m | 10:11PM0.11m | 11:07AM0.33m | 10:32PM0.12m | 12:00PM0.38m | 10:55PM0.13m | 1:36PM0.42m | 11:22PM0.15m | |||||||
 | |  |  | |  | | | | | | | | | | | |  | | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — |
 | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — |
mm | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 2 | 6 |
Temp °C | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 29 | 27 | 25 | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 28 | 28 | 29 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 12 | ENE 7 | NE 8 | E 11 | ENE 11 | E 10 | NE 9 | NNE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | E 10 | ENE 8 |
| kJ | 108 | 104 | 245 | 69 | 350 | 436 | 196 | 118 | 138 | 152 | 129 | 126 | 100 | 82 | 41 | 128 | 121 | 89 | 54 | 219 | 324 |
Swell 2 Height (m) Direction Period (s) | NW 8 | S 13 | E 12 | E 11 | NE 8 | SSE 8 | NE 9 | E 10 | SSE 5 | NW 13 | SSE 8 | SSE 9 | SE 8 | SE 8 | SSE 8 | SSE 8 | ESE 8 | E 8 | E 8 | NE 7 | SW 17 |
| kJ | 32 | 84 | 99 | 125 | 84 | 14 | 77 | 154 | 3 | 28 | 6 | 7 | 11 | 10 | 6 | 12 | 22 | 42 | 63 | 65 | 76 |
Swell 3 Height (m) Direction Period (s) | S 13 | NW 8 | SSW 12 | NW 8 | NW 8 | SSW 15 | SE 8 | SSE 6 | WNW 11 | SSW 15 | SSE 5 | WNW 12 | WNW 11 | WNW 11 | WNW 10 | SW 20 | SSW 20 | E 11 | E 10 | SW 18 | WNW 10 |
| kJ | 86 | 20 | 48 | 25 | 18 | 44 | 17 | 3 | 11 | 21 | 2 | 14 | 12 | 12 | 10 | 99 | 75 | 38 | 51 | 79 | 9 |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 7 | — | E 7 | — | E 11 | — | — | E 9 | E 9 | E 9 | E 5 | E 5 | E 5 | ENE 5 | — | NE 6 | — | — | E 8 | — |
| kJ | 202 | 320 | — | 120 | — | 332 | — | — | 108 | 79 | 59 | 31 | 23 | 16 | 45 | — | 80 | — | — | 201 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 40 | 40 | 30 | 40 | 30 | 19 | 24 | 24 | 19 | 24 | 24 | 24 | 24 | 40 | 16 | 24 | 40 | 24 | 40 | 30 | 30 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kealia Surf forecast
The above surf forecast table for Kealia provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kealia can be found by selecting the local surf guide option on the grey menu. Our Kealia 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 (Kealia) 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 Kealia 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.
Are you planning a vacation in Kaua'i? If you are looking for accommodation near Kealia, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 14 km (9 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 15 km (9 miles) away
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