Surf Forecasts:
Kiholo Bay surf forecast from 31 Jul 2026:
- Most powerful swell: Thursday 30 Jul, 5PM (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 5PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Friday (Jul 31) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (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 get into it.
Right off the bat, I gotta be straight with you: the next 16 days are looking pretty flat for the Kiholo Bay area. There’s no real surf to get excited about at all. The whole outlook is a ghost town for waves. We’ve got a solid run of over a week with nothing but tiny, weak energy and “poor surf conditions” flagged for every single session. The combined swell energy barely cracks double digits for most of it, sitting at only 8 early on, and for a few days it’s a big fat zero. It’s not a shocker for this spot – when it goes quiet, it can stay quiet for a while.
Kiholo Bay itself is a beach and point setup, and it’s normally fairly consistent, but not this time. The water temp is sitting at 81°, which is about average for the time of year, so at least it’s nice for a swim.
The first real sign of life doesn’t show up until Sunday, August 9th, in the afternoon. We get a tiny 2ft swell from the west, with a period of 13 seconds, and the combined energy finally climbs to 130. That’s still weak, but it’s something. The wind is light cross-onshore, so it won’t be clean. This swell builds slightly through the week, with the best looking window being around Monday, August 10th, into Tuesday, August 11th. You’re looking at 2ft to 2ft from the west, with periods around 13 seconds. The combined energy peaks at 188 on Monday morning. That’s still moderate energy at best, and the west swell direction means the optimum swell for Kiholo Bay is from the WNW, so it’s not a perfect match. Winds are light cross-onshore or onshore, so it’s not going to be glassy. The highest energy comes on Wednesday, August 12th, afternoon with 184 but again, 2ft and cross-onshore breeze.
Bottom line: there’s nothing here that’s a standout. The best you can hope for is a few knee-high, weak waves from the west in the second week, but the wind won’t be your friend. Leave your board at home and maybe grab a snorkel.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | SW 18 | SW 16 | SW 16 | N 9 | N 8 | N 8 | SW 14 | N 11 | N 10 | N 9 | N 9 | W 11 | NNE 6 | W 12 | N 6 | NE 6 | ENE 10 | W 12 | W 11 | NE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 49 | 41 | 0 | 6 | 5 | 5 | 29 | 9 | 16 | 15 | 6 | 10 | 0 | 11 | 7 | 0 | 0 | 11 | 10 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | glassy | cross-off | cross-on | cross | glassy | cross-on | glassy | glassy | on | cross-on | glassy | on | cross-on | glassy | glassy | on | glassy |
High Tide | 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 | 8:13AM0.58m | 6:53PM0.49m | 9:29AM0.62m | 7:23PM0.40m | |||||||
Low Tide | 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 | 2:00PM0.35m | 1:49AM0.10m | 4:11PM0.37m | 2:36AM0.10m | |||||||
 |  | | | | | | | | | | | |  | | | |  |  |  | |
 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — |
 | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 28 | 27 | 28 | 28 | 26 | 28 | 27 | 26 | 28 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 26 |
Feels °C | 31 | 30 | 30 | 30 | 28 | 29 | 29 | 27 | 30 | 31 | 29 | 29 | 30 | 30 | 31 | 31 | 30 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 6 | NE 6 | NE 6 | SW 15 | NE 6 | NE 8 | SW 14 | NNE 6 | NE 8 | NNE 6 | N 6 | NNE 6 | NNE 6 | ENE 11 | NE 6 | NNE 5 | NE 9 | W 11 | NNE 4 |
| kJ | 54 | 45 | 43 | 75 | 55 | 70 | 116 | 47 | 37 | 110 | 30 | 22 | 31 | 20 | 47 | 40 | 17 | 21 | 10 | 6 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 16 | SW 16 | SW 15 | N 8 | SW 14 | SW 14 | N 11 | NE 8 | N 9 | NE 8 | NE 8 | NE 8 | ENE 12 | NE 6 | ENE 11 | ENE 10 | W 12 | NNE 9 | NE 4 |
| kJ | 49 | 41 | 65 | 60 | 5 | 49 | 29 | 9 | 35 | 15 | 33 | 31 | 17 | 56 | 8 | 45 | 38 | 11 | 8 | 4 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | ENE 8 | N 9 | S 12 | N 8 | E 14 | E 14 | N 10 | SSW 13 | N 9 | W 11 | ENE 12 | W 12 | N 6 | SSW 11 | SSW 11 | NNE 9 | SSW 11 | NE 8 |
| kJ | 28 | 14 | 6 | 6 | 3 | 5 | 4 | 4 | 16 | 17 | 6 | 10 | 15 | 11 | 7 | 13 | 12 | 8 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NE 6 | — | — | NE 8 | — | — | — | — | — | — | — | — | — | NE 6 | NNE 9 | — |
| kJ | — | — | — | — | 73 | — | — | 86 | — | — | — | — | — | — | — | — | — | 15 | 52 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 90 | 22 | 99 | 43 | 22 | 14 | 14 | 14 | 94 | 94 | 14 | 94 | 94 | 44 | 90 | 90 | 26 | 90 | 90 | 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.
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