Surf Forecasts:
Kiholo Bay surf forecast from 2 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 5AM (local time) - 6ft (1.8m), 14s period, WSW swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 8AM (local time) - 7ft (2.1m), 14s period, WSW swell with 1,653 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 8PM (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 Sunday (Sep 06) at 8PM. 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 2.1m 14s and forecast to arrive on Tuesday (Sep 08) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Wednesday (Sep 02) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 6th Sep) | 2.5ft (0.8m) 11s |
| Best Surf | 5AM (Tue 8th Sep) | 6ft (1.8m) 14s |
| Most Powerful | 8AM (Tue 8th Sep) | 7ft (2.1m) 14s |
Table - best surf conditions forecast for Kiholo Bay over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let's have a look at what's on the menu for the next couple of weeks.
Overall, it's a real mixed bag. We're looking at a long stretch of nothing much, then a pulse of energy from the southwest that might just make things interesting, but it's not going to be a classic. We've got a long wait ahead.
The first proper surf recommendation doesn't arrive until Monday the 7th of September. So, you've got a solid five days of flat, small, or just plain messy conditions to get through before anything worth paddling out for shows up.
That Monday morning, the 7th, sees a 4ft south-west swell creeping in, with a period of 13 seconds. The combined energy of all swells is moderate at 444. It's a light north-north-west wind, which is offshore for Kiholo Bay, so the surface could be clean. It's a bit marginal, but it's the best we've got on offer. The afternoon swings around to a light cross-onshore and the swell builds to 4ft from the WSW, with a longer period of 14 seconds and energy climbing to 635. Still, it's a marginal call.
The standout by a long way is Tuesday the 8th of September. The early morning session looks the pick. You've got a 7ft south-west swell, period 14 seconds, and the combined energy is a strong 1556. With a light offshore wind, it’s going to be big and powerful. But, listen, at 7ft, this is getting into expert territory. If you're not confident in your ability, give it a miss. The afternoon sees some wind shift cross-onshore, and the swell drops a touch to 6ft, though the energy is still strong at 1137. It's a short-lived window of proper surf.
After that, it's pretty much back to the doldrums. Wednesday the 9th has a small 3ft swell, but the morning is clean with the offshore. By the afternoon, it's glassy but small, with a 3ft swell. The energy is weak. We've got a few more days of tiny, weak swell and light winds, but nothing that’s going to get the heart racing. The period from the 10th onward is mostly flat or very small, with a few glassy moments but no real wave energy to speak of.
If you're keen, the only real window to consider is the 7th, with the 8th being the only true standout for experts. For the rest of us, it's a waiting game. The water temperature is about average for this time of year, so no need to dig out the thick rubber just yet.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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) | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 9 | S 13 | NE 6 | NNE 7 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | WSW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||
10 | 9 | 8 | 8 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 241 | 198 | 444 | 635 | 1014 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-off | cross | cross | cross-off | cross-on | cross | glassy | on | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | glassy |
High Tide | 7:40AM0.67m | 6:14PM0.39m | 8:57AM0.68m | 6:22PM0.32m | 10:26AM0.70m | 9:07PM0.26m | 11:45AM0.74m | 11:48PM0.27m | 12:45PM0.78m | 1:01AM0.33m | 1:33PM0.81m | 1:51AM0.40m | |||||||
Low Tide | 00:15AM0.08m | 2:26PM0.33m | 00:53AM0.09m | 5:34PM0.32m | 1:47AM0.12m | 7:35PM0.26m | 3:13AM0.14m | 7:49PM0.20m | 4:53AM0.13m | 8:13PM0.16m | 6:12AM0.11m | 8:38PM0.12m | |||||||
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:38 | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | — |
Temp °C | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 31 | 31 | 32 | 29 | 30 | 29 | 27 | 30 | 30 | 28 | 30 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NE 8 | NE 7 | NE 8 | NE 7 | S 14 | SSW 13 | NE 6 | NE 6 | NNE 7 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | WSW 14 | WSW 14 |
112 | 128 | 121 | 82 | 75 | 16 | 57 | 52 | 73 | 57 | 140 | 199 | 185 | 198 | 241 | 198 | 444 | 635 | 1014 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 14 | W 9 | E 14 | S 13 | S 11 | SSW 11 | NNE 6 | NNE 6 | E 13 | N 8 | NNE 7 | ENE 12 | ENE 12 | NE 12 | NE 11 |
51 | 50 | 45 | 42 | 16 | 2 | 4 | 84 | 63 | 69 | 47 | 34 | 86 | 43 | 41 | 169 | 255 | 273 | 224 | |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | W 10 | W 10 | W 9 | E 12 | W 9 | E 14 | E 14 | ENE 14 | ENE 13 | ENE 13 | N 6 | E 12 | ENE 12 | NNE 6 | SSW 17 | SSW 16 | SSW 12 |
10 | 9 | 8 | 8 | 2 | 3 | 2 | 14 | 16 | 36 | 56 | 58 | 16 | 80 | 123 | 36 | 57 | 90 | 83 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 7 | NE 6 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 85 | 54 | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 14 | 102 | 14 | 14 | 14 | 14 | 14 | 99 | 99 | 21 | 19 | 19 | 19 | 21 | 19 | 0 | 21 | 16 | 0 |
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.











