Surf Forecasts:
Kiholo Bay surf forecast from 29 Jul 2026:
- Most powerful swell: Thursday 30 Jul, 2PM (local time) - 1ft (0.3m), 18s period, SW swell with 49 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 18s and forecast to arrive on Thursday (Jul 30) at 2PM. 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 Saturday (Aug 01) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Thu 30th Jul) | 1ft (0.3m) 18s |
Table - best surf conditions forecast for Kiholo Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s cooking for Kiholo Bay over the next couple of weeks.
To be straight with you, the first part of the forecast is pretty flat. We’re looking at a long stretch of poor conditions with tiny wind ripples and cross-onshore winds. There’s a gap of several days with no real rideable surf.
The first sign of life shows up Thursday afternoon, July 30th. The wind goes glassy, which is a beauty, but we’re only talking about a 1-foot swell from the SW. It’s a long-period groundswell at 18 seconds, which is really long, but the combined energy is only 51 – weak. Those long waits between sets will be a thing. At Kiholo Bay, a beach and point setup, a long-period SW swell might not hit the break perfectly, but if you’re keen, you could score a clean one on the point. The water temp is 81°, which is about 1° warmer than average for this time of year – just a touch warmer than usual.
The days after are a mix of tiny, weak swell and onshore winds. Sunday, August 2nd afternoon has a glassy window with a 1-foot N swell, but it’s short period and weak energy (14). It’s a light day.
The best part of the outlook, and the real standout, is during the second week. We see a slow build starting around August 8th. Saturday, August 8th has a 2-foot W swell with a 12-second period. The combined energy is 110, which is moderate. The winds are cross-shore, so it’s not perfect, but it’s the biggest swell we’ve seen.
The absolute best on offer is Sunday, August 9th afternoon. The wind goes glassy, and we’ve got a 2-foot W swell with a 13-second period, giving it decent shape. The combined energy is 78, still on the weaker side, but the glassy conditions make it the cleanest session of the whole forecast. The swell direction (W) lines up well with the optimum for Kiholo Bay (WNW). This is the one to aim for, but it’s more than a week away, so keep it on the radar but don’t lock it in.
After that, the swell fades back to small, weak pulses. All in all, it’s a quiet stretch, but that glassy Sunday afternoon on August 9th is the one to circle on the calendar.
Stay patient, stay stoked.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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 12 | NE 10 | NNE 9 | NNE 8 | NNE 8 | SSW 18 | SW 18 | SW 16 | N 9 | N 9 | N 8 | NE 7 | NE 7 | N 10 | N 10 | N 9 | N 8 | NNE 6 | NNE 6 | W 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 49 | 41 | 6 | 6 | 5 | 0 | 0 | 9 | 16 | 14 | 12 | 0 | 0 | 11 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | on | cross | on | glassy | glassy | cross-on | cross | cross-off | cross-on | glassy | cross-off | cross-on | glassy | glassy | on | cross-on | glassy |
High Tide | 3:44PM0.82m | 3:34AM0.36m | 4:14PM0.82m | 4:11AM0.39m | 4:41PM0.80m | 4:50AM0.43m | 5:08PM0.77m | 5:32AM0.47m | 5:33PM0.72m | 6:18AM0.50m | 5:59PM0.65m | 7:11AM0.54m | 6:26PM0.57m | |||||||
Low Tide | 10:46PM0.15m | 9:02AM0.05m | 11:09PM0.14m | 9:39AM0.07m | 11:32PM0.13m | 10:17AM0.11m | 11:55PM0.12m | 10:58AM0.16m | 00:18AM0.11m | 11:44AM0.22m | 00:44AM0.10m | 12:41PM0.29m | 1:13AM0.10m | |||||||
 |  | | | | | | | | | | | | | | | | | |  | |
 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — |
 | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 29 | 27 | 28 | 28 | 27 | 27 | 28 | 26 | 29 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 31 | 30 | 31 | 31 | 30 | 30 | 32 | 30 | 32 | 30 | 27 | 29 | 31 | 29 | 29 | 30 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | NNE 9 | NE 10 | NNE 9 | NNE 8 | NNE 8 | N 7 | SW 18 | NE 6 | NE 6 | NE 6 | SW 15 | NE 7 | NE 7 | SW 14 | NE 8 | NE 8 | NNE 6 | NNE 6 | NNE 6 | NNE 6 |
| kJ | 106 | 138 | 119 | 94 | 58 | 24 | 49 | 49 | 64 | 64 | 55 | 102 | 132 | 46 | 132 | 142 | 44 | 33 | 33 | 29 |
Swell 2 Height (m) Direction Period (s) | ENE 12 | N 9 | SSW 14 | SSW 13 | ENE 7 | ENE 7 | SSW 12 | SW 16 | SW 16 | SW 15 | ENE 8 | SW 14 | SW 14 | N 10 | N 10 | NNE 7 | NE 8 | NE 8 | NE 8 | ENE 12 |
| kJ | 156 | 42 | 36 | 34 | 32 | 21 | 14 | 41 | 65 | 60 | 14 | 49 | 46 | 9 | 16 | 17 | 34 | 32 | 17 | 82 |
Swell 3 Height (m) Direction Period (s) | NE 14 | SSW 14 | ENE 9 | ENE 8 | SSW 13 | SSW 18 | N 10 | SSW 12 | N 9 | N 9 | N 8 | E 14 | E 14 | E 15 | SSW 13 | N 9 | N 8 | ENE 13 | ENE 13 | W 12 |
| kJ | 100 | 37 | 8 | 7 | 31 | 31 | 2 | 15 | 6 | 6 | 5 | 4 | 4 | 17 | 17 | 14 | 12 | 18 | 35 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NE 7 | — | — | — | NE 6 | — | — | NE 8 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 75 | — | — | — | 52 | — | — | 128 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 22 | 22 | 94 | 25 | 31 | 90 | 90 | 14 | 99 | 14 | 14 | 94 | 94 | 14 | 94 | 43 | 14 | 94 | 94 | 84 |
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.
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