Surf Forecasts:
Kiholo Bay surf forecast from 19 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 11AM (local time) - 1.5ft (0.4m), 12s period, WNW swell with 50 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 0.4m 12s and forecast to arrive on Sunday (Jul 19) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Sunday (Jul 26) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sun 19th Jul) | 1.5ft (0.4m) 12s |
Table - best surf conditions forecast for Kiholo Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s cookin’ for Kiholo Bay.
Right now, it’s flat. Dead flat. We’re looking at a 16-day forecast, but the first surf that’s even worth a mention doesn’t show up until late in the month, and even that’s a struggle. From now through July 29th, there’s basically nothing. Tiny, weak dribbles that are barely ripples. The water temp is 80°, which is about average for this time of year, nothing special.
The only break is Kiholo Bay, a beach and point setup for intermediates, but it’s not offering much. On Sunday the 19th through Monday the 20th, we’ve got tiny swell of 0.7 ft to 1 ft from the WNW with a 12-second period. The combined energy is weak, between 13 and 71 (weak). Winds are light and cross-onshore. Not clean, not powerful. Just poor.
There’s a long flat spell from July 21st all the way to the 29th. No swell. Glassy conditions pop up but with zero energy, it’s a lake.
Things get a pulse right at the end. On Wednesday July 29th afternoon, a 0.3 ft pulse from the SW with a very long 20-second period shows up (energy 15 – weak), glassy but too small. On July 30th, it builds to 1.0 ft from the SW, 18-second period, energy still low at 49. Winds are light and onshore or cross-onshore.
Into early August, we get the best of a bad bunch. Sunday August 2nd morning has a 2 ft swell from the W, 13-second period, combined energy of 84 (still weak). Winds light cross-onshore. Monday August 3rd morning is glassy with 1 ft from the W, 12-second period.
The standout: There’s no real standout. If you’re desperate, Sunday August 2nd morning at Kiholo Bay offers the biggest swell of the period at 2 ft from the west, but with light cross-onshore winds, it won’t be clean. The direction matches the optimum WNW, but the size is tiny and the energy is weak.
Crowds: Kiholo Bay can get crowded sometimes, but with this little surf, it’ll only be a few hopefuls.
Bottom line: This run is a total flat spell for real surfing. The setup looks more interesting for a kayak than a surfboard. Don’t get your hopes up, but forecasts can change.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 28°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Warm (max 28°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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) | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | W 11 | NE 7 | SSW 26 | SSW 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | NE 7 | NE 6 | NNE 8 | NE 8 | SSW 18 | NNE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 50 | 29 | 29 | 27 | 13 | 13 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | on | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | cross-off | cross-on | cross-on | cross-off | cross | cross-on | glassy |
High Tide | 8:08AM0.51m | 7:13PM0.57m | 9:17AM0.55m | 7:39PM0.48m | 10:31AM0.59m | 8:03PM0.40m | 11:40AM0.63m | 12:37PM0.67m | 11:10PM0.29m | 1:23PM0.71m | 00:41AM0.28m | 2:04PM0.75m | 1:37AM0.29m | ||||||||
Low Tide | 1:24PM0.31m | 2:11AM0.12m | 2:54PM0.37m | 2:45AM0.13m | 5:19PM0.38m | 3:25AM0.14m | 4:16AM0.14m | 8:51PM0.28m | 5:15AM0.14m | 9:13PM0.24m | 6:12AM0.12m | 9:35PM0.21m | |||||||||
 |  |  | | |  | |  |  | | | | | | | | | | | | | |
 | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — |
mm | — | — | 1 | — | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 26 | 28 | 28 | 25 |
Feels °C | 30 | 31 | 30 | 30 | 28 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 29 | 28 | 29 | 30 | 27 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | NNE 6 | NE 8 | NNE 8 | NNE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | NE 6 | NNE 6 | NE 7 | NE 6 | NNE 8 | NE 8 | NNE 8 | NNE 8 |
| kJ | 50 | 41 | 57 | 50 | 68 | 49 | 54 | 52 | 50 | 12 | 31 | 24 | 24 | 58 | 23 | 54 | 54 | 72 | 84 | 101 | 95 |
Swell 2 Height (m) Direction Period (s) | SW 11 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 20 | SSW 16 | SSW 18 | SSW 18 |
| kJ | 5 | 29 | 29 | 27 | 13 | 13 | 13 | 14 | 13 | 55 | 106 | 91 | 78 | 75 | 66 | 61 | 59 | 76 | 51 | 102 | 60 |
Swell 3 Height (m) Direction Period (s) | SW 20 | NE 5 | SSW 12 | ENE 7 | SSW 10 | SSW 16 | W 11 | SSW 16 | SSW 26 | SSW 16 | NNE 7 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 14 | SSW 21 | SSW 16 | SSW 20 | S 9 | E 15 |
| kJ | 16 | 6 | 13 | 5 | 11 | 26 | 9 | 26 | 65 | 25 | 5 | 29 | 25 | 25 | 30 | 19 | 45 | 25 | 37 | 7 | 18 |
Wind waves Height (m) Direction Period (s) | NNE 7 | — | — | — | — | — | — | — | — | NNE 5 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 66 | — | — | — | — | — | — | — | — | 16 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 99 | 22 | 97 | 99 | 22 | 94 | 94 | 21 | 21 | 31 | 27 | 94 | 94 | 22 | 94 | 14 | 22 | 22 | 102 | 14 |
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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