Surf Forecasts:
Kiholo Bay surf forecast from 30 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 2AM (local time) - 1ft (0.3m), 17s period, SW swell with 44 kJ wave energy.
Best Forecast Surf Conditions for Kiholo Bay this week:
The most powerful waves expected at Kiholo Bay in the next 16 days are 0.3m 17s and forecast to arrive on Sunday (Aug 30) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Saturday (Sep 05) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 30th Aug) | 1ft (0.3m) 17s |
Table - best surf conditions forecast for Kiholo Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it for Kiholo Bay. We’re looking at a long, slow stretch here.
Honestly, the next week and a half is a total bust. From now right through to around the 10th of September, there’s just nothing doing. We’re talking about a solid 12-day gap with barely a ripple. The water is sitting at a warm 82°F, which is pretty much what you’d expect for this time of year, but that’s the only thing going for it. You’ll get the odd day of glassy conditions, like Sunday morning the 30th of August, but with zero swell showing up, it’s just a flat, clean pond.
We finally start to see a pulse of energy arriving on Thursday the 10th of September. The combined swell energy hits 128 (moderate) by the morning, and it’s a 2ft groundswell from the west, with a long period of 13 seconds. That’s a proper groundswell. The best call looks like Thursday afternoon (10th Sept). The swell drops slightly to 2ft, still from the west with a 13-second period, but the wind flips to a glassy NNW. It’s only rated as surfable with very ordinary conditions, but that glassy wind is a huge positive. The energy is still decent at 134 (moderate), so it’ll be the cleanest, most rideable session in this whole outlook. Keep in mind, this is a long-period west swell for a spot that favours WNW, so it should wrap in nicely, but don’t expect perfection.
After that, Friday the 11th of September afternoon has a similar 2ft west swell, again glassy, but with slightly lower energy at 77. It’s another okay window, but Thursday afternoon is the standout. Everything after that fades back into tiny or flat conditions. For a spot that can be fairly consistent, this is a grim run. It’ll turn around eventually, but for now, don’t hold your breath.
That’s the story from the beach. Rusty out.
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Tue afternoon, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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) | W 10 | SW 17 | NE 7 | NE 7 | SW 15 | SW 15 | W 12 | W 12 | W 12 | NNE 6 | W 11 | NNE 7 | W 10 | W 10 | SW 13 | W 9 | W 9 | N 8 | NNE 7 | NNE 7 |
Wave Graph | ||||||||||||||||||||
7 | 44 | 0 | 0 | 36 | 33 | 11 | 12 | 11 | 0 | 10 | 0 | 8 | 8 | 7 | 2 | 2 | 5 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | glassy | glassy | cross-on | glassy | cross-off | cross-on | glassy | glassy | on | glassy | glassy | cross-on | cross | cross-off | cross | cross-off | cross |
High Tide | 4:30PM0.69m | 5:09AM0.61m | 4:57PM0.62m | 5:51AM0.65m | 5:23PM0.55m | 6:40AM0.66m | 5:49PM0.47m | 7:40AM0.67m | 6:14PM0.39m | 8:57AM0.68m | 6:22PM0.32m | 10:26AM0.70m | 9:07PM0.26m | |||||||
Low Tide | 10:56PM0.08m | 11:01AM0.18m | 11:19PM0.07m | 11:52AM0.23m | 11:45PM0.07m | 12:54PM0.29m | 00:15AM0.08m | 2:26PM0.33m | 00:53AM0.09m | 5:34PM0.32m | 1:47AM0.12m | 7:35PM0.26m | 3:13AM0.14m | |||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 26 | 28 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 25 | 27 | 28 | 26 |
Feels °C | 32 | 28 | 29 | 30 | 29 | 29 | 31 | 28 | 30 | 30 | 32 | 30 | 31 | 29 | 29 | 28 | 25 | 27 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | NNE 7 | NE 7 | NE 7 | NE 7 | SW 15 | NNE 8 | SSW 14 | NNE 8 | NNE 6 | NE 8 | NNE 7 | NE 7 | NE 7 | SSW 14 | NE 7 | SSW 13 | ENE 8 | NNE 8 | ENE 8 |
15 | 68 | 50 | 67 | 49 | 33 | 101 | 20 | 98 | 52 | 86 | 54 | 107 | 54 | 41 | 19 | 17 | 6 | 12 | 7 | |
Swell 2 Height (m) Direction Period (s) | SSW 17 | SW 17 | SSW 16 | SSW 15 | SW 15 | W 11 | SSW 14 | W 12 | SSW 18 | ENE 8 | SSW 16 | ENE 8 | SSW 15 | SSW 15 | W 9 | SSW 14 | W 9 | S 13 | S 13 | E 14 |
28 | 44 | 25 | 22 | 36 | 2 | 20 | 12 | 31 | 26 | 51 | 25 | 45 | 42 | 2 | 19 | 2 | 14 | 13 | 15 | |
Swell 3 Height (m) Direction Period (s) | W 10 | SSW 12 | S 12 | S 12 | W 11 | S 11 | W 12 | S 20 | W 12 | NE 7 | W 11 | SSW 16 | W 10 | W 10 | SW 13 | W 9 | E 11 | N 8 | E 13 | S 13 |
7 | 14 | 11 | 11 | 9 | 2 | 11 | 7 | 11 | 14 | 10 | 50 | 8 | 8 | 7 | 2 | 3 | 5 | 3 | 13 | |
Wind waves Height (m) Direction Period (s) | NE 6 | — | — | — | — | NNE 8 | — | NNE 8 | — | — | — | — | — | — | NNE 7 | NNE 5 | NE 7 | NNE 6 | NNE 7 | NNE 7 |
51 | — | — | — | — | 101 | — | 101 | — | — | — | — | — | — | 93 | 32 | 46 | 40 | 76 | 81 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 22 | 14 | 94 | 102 | 22 | 22 | 99 | 14 | 14 | 14 | 14 | 99 | 43 | 26 | 22 | 14 | 26 | 95 | 31 | 26 |
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.











