
Surf Forecasts:
Kiholo Bay surf forecast from 13 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 5AM (local time) - 1ft (0.3m), 21s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 5PM (local time) - 1.5ft (0.4m), 18s period, SW swell with 109 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 1ft (0.3m), 21s period with SW swell.
Best Forecast Surf Conditions for Kiholo Bay this week:
The surf forecast for Kiholo Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.3m and 21s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kiholo Bay in the next 16 days are 0.4m 18s and forecast to arrive on Wednesday (Sep 16) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Thursday (Sep 17) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 15th Sep) | 1ft (0.3m) 21s |
| Best Surf | 5AM (Tue 15th Sep) | 1ft (0.3m) 21s |
| Most Powerful | 5PM (Wed 16th Sep) | 1.5ft (0.4m) 18s |
Table - best surf conditions forecast for Kiholo Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Kiholo Bay. To be straight up with ya, the next couple of weeks are lookin’ pretty dire. The ground is practically dry for surf for the entire first half of the outlook. We’ve got a solid 15-day stretch of near-flat, weak conditions from now right up until the tail end of the month. Water temp is sittin’ at about 82°, which is roughly 2° warmer than usual for this time of year – nice for a swim, but not savin’ the surf.
September 12 to September 26: This is a long, ugly gap. Day after day of "poor surf conditions." You’ll see a few tiny bumps – maybe 0.7ft to 2ft – but the period is either super short (4 seconds) or the swell is just nonexistent. The combined energy is barely a whisper, stuck between 0 and 42. There’s no push. Even when the wind goes glassy on Tuesday the 15th afternoon, there’s no swell to clean up. The WNW offshore wind that Kiholo likes is there now and then, but it’s blowing over a flat ocean. Honestly, this stretch looks more interesting for snorkelling than surfing.
The One and Only Standout – September 27 (Sunday): Alright, finally a little glimmer. This is your moment if you’re desperate. After two weeks of nothing, Sunday morning shows a tiny pulse of life. We’re lookin’ at a 1ft swell from the WNW, with a very long period of 16 seconds. That’s a proper groundswell signal, even if it’s small. The combined energy jumps to 79, which is still weak, but it’s the most we’ve seen. The wind is glassy – offshore from the N – so it should be clean. Kiholo Bay is a beach and point setup, and a long-period WNW swell wrapping in with clean conditions could offer up a few fun, workable waves for an intermediate. Crowds are always possible here, but after two weeks of flatness, it might be worth a look. Just don’t expect size; it’ll be small and fun, not powerful.
The rest of the 27th afternoon fades back into a crossing wind, so catch the morning window. That’s your one shot.
Signin’ off,
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 28°C on Sun afternoon, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Thu afternoon. Warm (max 29°C on Wed morning, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 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) | SW 15 | SW 14 | SW 14 | NNE 9 | W 11 | W 11 | W 10 | SSW 22 | SSW 21 | SW 20 | SW 19 | SW 12 | SW 18 | SW 18 | SW 17 | SW 16 | NE 7 | W 9 | SW 18 | SW 9 | SW 16 |
Wave Graph | |||||||||||||||||||||
0 | 29 | 29 | 0 | 10 | 9 | 8 | 0 | 0 | 0 | 0 | 6 | 0 | 109 | 0 | 0 | 0 | 7 | 0 | 3 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | cross-on | glassy | on | cross-on | glassy | on | glassy | cross | cross-on | cross-on | glassy | on | glassy | glassy | cross-on | on | glassy |
High Tide | 4:23PM0.62m | 5:07AM0.69m | 4:49PM0.54m | 5:46AM0.70m | 5:13PM0.47m | 6:28AM0.68m | 5:32PM0.40m | 7:17AM0.65m | 5:42PM0.35m | 8:22AM0.62m | 9:48AM0.61m | ||||||||||
Low Tide | 10:31AM0.15m | 10:36PM0.06m | 11:17AM0.20m | 10:58PM0.07m | 12:07PM0.24m | 11:20PM0.09m | 1:05PM0.29m | 11:43PM0.12m | 2:31PM0.32m | 00:10AM0.14m | 00:45AM0.18m | 1:55AM0.21m | |||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
— | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | |
mm | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | — | 2 | 2 |
Temp °C | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 28 | 29 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 29 | 30 | 30 | 30 | 31 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 32 | 31 | 33 | 32 | 32 | 30 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 4 | NNE 5 | NE 6 | NNE 8 | NE 5 | NE 6 | SW 17 | NNE 6 | NE 7 | NE 7 | NE 8 | NE 7 | NE 7 |
36 | 67 | 99 | 68 | 68 | 64 | 61 | 26 | 11 | 12 | 24 | 50 | 27 | 36 | 75 | 41 | 119 | 91 | 54 | 79 | 59 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SSW 12 | W 11 | SSW 14 | SW 14 | SSW 22 | NNE 8 | NE 8 | NNE 8 | SW 19 | SW 18 | SW 18 | ENE 10 | ENE 10 | ENE 10 | SW 17 | NNE 7 | SW 17 | SW 16 |
60 | 29 | 29 | 15 | 9 | 20 | 7 | 46 | 24 | 15 | 23 | 94 | 79 | 109 | 19 | 38 | 30 | 148 | 15 | 145 | 129 | |
Swell 3 Height (m) Direction Period (s) | ENE 10 | WSW 8 | WNW 11 | SSW 15 | SSW 15 | W 11 | W 10 | SSW 14 | SSW 21 | SW 20 | SW 19 | SW 12 | NNE 7 | NNE 7 | NNE 8 | SW 16 | SW 16 | W 9 | SW 18 | SW 9 | S 16 |
9 | 7 | 12 | 22 | 21 | 9 | 8 | 18 | 45 | 98 | 96 | 6 | 11 | 10 | 14 | 65 | 64 | 7 | 78 | 3 | 19 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 4 | — | — | NNE 4 | — | — | — | — | — | — | NNE 5 | — | — | — | — | — | — |
— | — | — | — | 10 | — | — | 16 | — | — | — | — | — | — | 37 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 94 | 94 | 94 | 22 | 22 | 94 | 97 | 27 | 21 | 21 | 21 | 23 | 10 | 21 | 88 | 43 | 14 | 23 | 21 | 21 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kiholo Bay Surf forecast
The above surf forecast table for Kiholo Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kiholo Bay can be found by selecting the local surf guide option on the grey menu. Our Kiholo Bay 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 (Kiholo Bay) 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 Kiholo Bay 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.
Kiholo Bay is 89 km (55 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.










