
Surf Forecasts:
Kiholo Bay surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 5PM (local time) - 4.5ft (1.4m), 14s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 2AM (local time) - 6ft (1.8m), 13s period, WSW swell with 1,110 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 2AM (local time) - 2.5ft (0.8m), 11s 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 Monday (Sep 07) at 2AM. The primary swell is predicted to be 0.8m and 11s 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 1.8m 13s and forecast to arrive on Tuesday (Sep 08) 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 0.9m 11s period and expected on Sunday (Sep 06) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 7th Sep) | 2.5ft (0.8m) 11s |
| Best Surf | 5PM (Mon 7th Sep) | 4.5ft (1.4m) 14s |
| Most Powerful | 2AM (Tue 8th Sep) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Kiholo Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Kiholo Bay over the next couple of weeks.
First up, we’re starting with a flat spell. From now through to Sunday the 6th, there’s simply no surf to speak of – just calm, glassy conditions or light cross-onshore breezes, but zero wave energy. That’s a few days of flatness right out of the gate.
Then Monday the 7th morning brings the first whisper of life: a small SW swell pushing 4ft, with a period of 13 seconds. The wind is light onshore from the west, so it’s a bit bumpy and only marginal – definitely not worth rushing out for. But Monday afternoon, that’s where things get interesting. The swell builds to 5ft from the SW, period jumps to 14 seconds, and the wind goes glassy. That’s clean, lined-up groundswell with moderate energy (671), and for Kiholo Bay, that’s a standout window. The water temp is sitting at 82°, about 2° warmer than average – nothing wild, just a touch on the warm side. This is the pick of the forecast: expect very good surf conditions with a southwest groundswell and offshore-friendly WNW optimum direction for the break. It’s a consistent spot that’s fairly exposed to swell, so it should handle it nicely.
Tuesday the 8th keeps some size – 5ft from the WSW and W – but the wind turns cross-onshore and the period drops to 11 seconds. It’s still punchy but not as clean, and the energy is still strong (over 600). A decent option if you’re desperate, but not as good as Monday arvo.
From Wednesday the 9th onward, things fade fast. Swell drops below 3ft, periods get short or long and weak, and most days show poor surf conditions or flatness. There are occasional glassy moments, like Wednesday afternoon and Saturday the 12th afternoon, but with only 1ft to 2ft of swell and weak energy (25–40), it’s not worth paddling out for. The rest of the second week is tiny – just 0.3ft scraps – and honestly, there’s nothing to get excited about.
So to wrap it up: if you’re after a wave, your best bet is Monday the 7th afternoon. Glassy, chest-high groundswell, clean lines, and that’s your window. The rest of the 16 days is mostly a write-off, with a long gap of flat or near-flat conditions from mid-week onward. Keep an eye on the forecasts – sometimes these things change, but right now, it’s a one-afternoon show.
Stay stoked,
Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue night. Warm (max 29°C on Tue morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 12 | SSW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 14 | WSW 13 | WSW 11 | W 11 | W 10 | W 9 | W 7 | SW 7 | SW 16 | SW 18 | SW 8 | SW 16 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 180 | 411 | 671 | 1110 | 637 | 617 | 250 | 81 | 25 | 8 | 42 | 49 | 11 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | cross-on | glassy | on | glassy | cross | cross-on | cross-on | glassy | glassy | glassy | glassy |
High Tide | 11:45AM0.74m | 11:48PM0.27m | 12:45PM0.78m | 1:01AM0.33m | 1:33PM0.81m | 1:51AM0.40m | 2:14PM0.82m | 2:34AM0.47m | 2:50PM0.80m | 3:14AM0.55m | 3:23PM0.75m | 3:52AM0.61m | 3:54PM0.69m | 4:30AM0.66m | |||||||
Low Tide | 7:49PM0.20m | 4:53AM0.13m | 8:13PM0.16m | 6:12AM0.11m | 8:38PM0.12m | 7:15AM0.09m | 9:03PM0.10m | 8:08AM0.08m | 9:27PM0.08m | 8:58AM0.09m | 9:51PM0.06m | 9:44AM0.11m | 10:13PM0.06m | ||||||||
6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | 3 | 3 | — | — | — | — | 1 | 3 | — | — | 1 | — | — | 1 | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 27 | 26 |
Feels °C | 31 | 31 | 32 | 31 | 30 | 31 | 32 | 31 | 32 | 33 | 32 | 32 | 32 | 33 | 32 | 30 | 31 | 30 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 14 | WSW 13 | WSW 11 | W 11 | W 10 | W 9 | NE 6 | NE 7 | SW 16 | NE 7 | NE 8 | NNE 5 | NNE 6 | NE 7 |
180 | 171 | 126 | 121 | 145 | 180 | 411 | 671 | 1110 | 637 | 617 | 250 | 81 | 24 | 38 | 42 | 69 | 49 | 19 | 40 | 46 | |
Swell 2 Height (m) Direction Period (s) | NNE 6 | NE 6 | NNE 6 | NNE 6 | NNE 6 | ENE 12 | NE 7 | ENE 12 | NE 11 | NE 11 | NE 10 | NE 8 | NNE 8 | W 7 | SW 7 | SW 8 | SW 18 | SW 16 | NE 7 | SW 15 | SW 15 |
37 | 39 | 35 | 25 | 34 | 123 | 44 | 180 | 150 | 168 | 110 | 57 | 41 | 25 | 8 | 9 | 49 | 67 | 14 | 57 | 57 | |
Swell 3 Height (m) Direction Period (s) | ENE 13 | ENE 14 | E 13 | E 12 | E 12 | NNE 6 | ENE 12 | NNE 7 | SSW 15 | SSW 15 | SSW 14 | SW 8 | SW 8 | NNE 7 | WNW 6 | SSW 13 | SSW 7 | SW 8 | SW 16 | ENE 12 | NE 8 |
57 | 61 | 86 | 73 | 72 | 21 | 85 | 15 | 78 | 84 | 81 | 32 | 20 | 21 | 8 | 16 | 5 | 11 | 65 | 27 | 14 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 7 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 50 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 19 | 21 | 21 | 19 | 0 | 21 | 0 | 0 | 128 | 44 | 0 | 21 | 31 | 27 | 14 | 94 | 21 | 94 | 31 | 27 |
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.










