
Surf Forecasts:
Kona Tiki surf forecast from 7 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 2AM (local time) - 2.5ft (0.7m), 19s period, S swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 2AM (local time) - 4.5ft (1.3m), 16s period, S swell with 879 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 8PM (local time) - 1.5ft (0.4m), 14s period with SW swell.
Best Forecast Surf Conditions for Kona Tiki this week:
The surf forecast for Kona Tiki over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 8PM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.3m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kona Tiki in the next 16 days are 1.3m 16s and forecast to arrive on Thursday (Aug 13) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 6th Aug) | 1.5ft (0.4m) 14s |
| Best Surf | 2AM (Wed 12th Aug) | 2.5ft (0.7m) 19s |
| Most Powerful | 2AM (Thu 13th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Kona Tiki over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at what’s coming up for the next couple of weeks.
Right off the bat, it’s a bit of a slow grind. We’re looking at a stretch of small, weak, and mostly messy surf that doesn’t really get going for a while. The first few days are a bit of a write-off, with tiny swell and mostly cross-onshore winds messing things up. The water is sitting at a warm 81°, which is about a degree and a half above the norm for this time of year – nothing crazy, just a nice little bonus.
Things start to show a pulse around the 8th of August. Saturday afternoon at Kona Tiki (reef) we get a little window of opportunity. The swell is a tiny 1ft from the SSW, but the wind goes glassy, and the combined energy is moderate (204). It’s not going to be big, but it’ll be clean. That’s a rare treat.
The real standout, if you can call it that, looks like Wednesday the 12th of August. The swell picks up to 3ft from the S, with a long period of 18 seconds (groundswell). The combined energy jumps up to a moderate 900. This is the best-looking energy of the whole period. The catch? The wind is onshore or cross-onshore, so it’s not going to be perfect. But for a reef break, that long-period S swell will wrap in and offer some decent shape. It’s still a marginal call, but it’s the pick of the bunch.
Later in the period, around the 17th and 18th of August, we see a few more glassy or clean windows appear. The 17th has a 2ft S swell with glassy conditions in the afternoon – that’s your best bet for a clean, small-wave session. The 18th afternoon has a clean 2ft W swell with a cross-off breeze. The energy is still moderate (254).
Overall, don’t expect any bombs. The consistent message is small, marginal surf. The best days are the 12th for some size and energy, and the 17th for the cleanest conditions. You’ll be scratching for waves, but if you’re patient, there’ll be a few.
Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 25°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 28°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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) | SW 14 | SW 14 | SSW 14 | SSW 16 | SW 20 | SW 19 | SW 18 | SSW 18 | SSW 18 | SSW 18 | S 16 | S 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 19 | S 18 | S 17 | S 16 |
Wave Graph | |||||||||||||||||||||
33 | 52 | 80 | 50 | 98 | 95 | 106 | 124 | 109 | 103 | 135 | 183 | 314 | 240 | 228 | 273 | 261 | 365 | 620 | 579 | 879 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | glassy | cross | on | cross-on | cross | on | on | glassy | on | cross-on | cross |
High Tide | 10:56AM0.63m | 9:33PM0.24m | 12:00PM0.69m | 11:15PM0.21m | 12:56PM0.75m | 00:37AM0.22m | 1:46PM0.80m | 1:40AM0.24m | 2:31PM0.81m | 2:32AM0.28m | 3:12PM0.81m | 3:20AM0.32m | 3:51PM0.77m | 4:06AM0.37m | |||||||
Low Tide | 6:41PM0.22m | 3:54AM0.02m | 7:48PM0.16m | 5:01AM0.01m | 8:33PM0.11m | 6:04AM-0.01m | 9:11PM0.08m | 7:03AM-0.02m | 9:45PM0.06m | 7:57AM-0.02m | 10:17PM0.05m | 8:48AM-0.01m | 10:47PM0.04m | ||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 3 | 2 | — | — | 2 | — | — | — |
Temp °C | 28 | 28 | 26 | 27 | 28 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 31 | 30 | 29 | 31 | 31 | 31 | 30 | 31 | 31 | 29 | 31 | 31 | 30 | 32 | 31 | 31 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 14 | S 11 | SW 20 | SW 13 | S 14 | SSW 18 | SSW 13 | SSW 13 | S 16 | S 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | S 18 | S 17 | S 16 |
33 | 19 | 80 | 20 | 98 | 46 | 106 | 124 | 99 | 96 | 135 | 183 | 314 | 240 | 228 | 273 | 261 | 236 | 620 | 579 | 879 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SSW 11 | SW 14 | S 10 | SW 19 | SW 18 | SW 13 | SW 17 | SSW 18 | SSW 12 | SSW 12 | WNW 11 | SSW 11 | SSW 11 | W 10 | SSW 20 | S 19 | SSW 13 | SSW 13 | WNW 12 |
31 | 52 | 23 | 29 | 19 | 95 | 83 | 43 | 77 | 103 | 85 | 82 | 39 | 41 | 70 | 18 | 132 | 365 | 222 | 222 | 28 | |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | SSW 16 | SSW 16 | SSW 15 | S 10 | SSW 14 | SSW 18 | SW 16 | W 12 | W 12 | S 9 | W 11 | WNW 10 | S 21 | WNW 12 | W 11 | WNW 13 | WNW 13 | SE 9 |
26 | 27 | 11 | 50 | 50 | 42 | 17 | 37 | 109 | 67 | 25 | 42 | 15 | 20 | 35 | 80 | 46 | 40 | 58 | 56 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | — | S 4 | — | WNW 2 | — | — | — | — | — | — | — | SSW 6 | — | S 9 | — | — | — | — | — |
— | — | — | 1 | — | 1 | — | — | — | — | — | — | — | 6 | — | 13 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 100 | 81 | 100 | 100 | 95 | 132 | 0 | 0 | 95 | 0 | 0 | 95 | 120 | 2 | 122 | 122 | 0 | 120 | 18 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kona Tiki Surf forecast
The above surf forecast table for Kona Tiki provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kona Tiki can be found by selecting the local surf guide option on the grey menu. Our Kona Tiki 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 (Kona Tiki) 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 Kona Tiki 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.
Kona Tiki is 95 km (59 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.











