Kiholo Bay Surf Break

Lat Long: 19.86° N 155.93° W

Kiholo Bay Surf Forecast and Surf Report

Issued: 1 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kiholo Bay sea temperature is
27.5° C
1.0° 

Kiholo Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kiholo Bay surf forecast from 14 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 5PM (local time) - 1.5ft (0.4m), 12s period, WNW swell with glassy winds.
  • Most powerful swell: Tuesday 18 Aug, 11PM (local time) - 1.5ft (0.4m), 13s period, WNW swell with 57 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 5PM (local time) - 1.5ft (0.4m), 12s period with WNW swell.

Best Forecast Surf Conditions for Kiholo Bay this week:

The surf forecast for Kiholo Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 5PM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.3m and 16s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kiholo Bay in the next 16 days are 0.4m 13s and forecast to arrive on Tuesday (Aug 18) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Sunday (Aug 16) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Wed 19th Aug)1.5ft (0.4m) 12s
Best Surf 5PM (Wed 19th Aug)1.5ft (0.4m) 12s
Most Powerful11PM (Tue 18th Aug)1.5ft (0.4m) 13s

Table - best surf conditions forecast for Kiholo Bay over the next 16 days.


The Lowdown

Alright folks, grab your sticks. Rusty here, taking a long hard look at what Kiholo Bay has cookin' for the next couple of weeks. I've gotta be straight with you, it's been a tough stretch, and honestly, it's a bit of a wait-and-see situation for the most part.

Let’s start with the big picture. The water's sitting at 82°, about a degree and a half warmer than usual for this time of year – a touch of tropical bathwater, which is nice on the skin but doesn't do much for the wave quality. The problem is, we are looking at a whole lot of days with very minimal, weak swell. The combined swell energy is in the dumps, barely cracking double digits for the first week. For instance, Thursday afternoon the 13th only has a combined energy of 25 on a tiny 1.0ft W swell. That’s not surf; that’s a wobbly mess.

Friday the 14th is even worse, with the swell dropping to 0.7ft and energy at 10. Saturday the 15th sees some clean conditions with that light E and NE cross-offshore breeze, but on a 0.7ft swell with 11-second period, it’s just not enough to push a rideable wave. We’re looking at a real flat spell here for the first four or five days.

Now, there’s a little window around the 17th and 18th where things get glassy. Monday the 17th morning has zero wind – glassy as a mirror – and a 1.0ft WNW swell, but the energy is still only 25. We get the same glassy conditions Tuesday the 18th morning with a 1.0ft WNW swell (energy 24). It’s pretty, but you’re scratching for anything rideable. Wednesday the 19th afternoon finally sees the swell bump to 1ft from the WNW with a 12-second period and a combined energy of 90, paired with glassy conditions. At last, a session that’s *surfable* but still very ordinary. Thursday the 20th afternoon gives us a hint of something with a 1.0ft SW groundswell (period of 18 seconds) and glassy wind, but the energy is only 70. That long period won't help much at a beach setup; it’ll just wrap in weird and fat.

We then hit another dead zone from the 21st through the 24th, with mostly flat conditions and no swell energy at all for days on end. The 25th sees a return of glassy conditions but on a tiny 0.7ft W swell.

Finally, we start to see some real promise around the very end of the month. Wednesday the 26th afternoon brings a 1ft W swell with a nice long 16-second period and combined energy of 81, with glassy conditions. That is a standout moment. If that holds, it'll be a clean, patient, long-period groundswell. Then on Thursday the 27th afternoon we get our best chance: a 2ft W swell (13-second period) and a combined energy of 86, under glassy skies. That’s the pick of the bunch – a little push, clean face, and glassy. Friday the 28th morning shows 2ft from the WNW but the wind is onshore, so it’s messy.

So, best bet on offer? Thursday, August 27th afternoon. That 2ft W swell with glassy conditions is your only real standout. The 26th afternoon is also a solid secondary call. Get out there if you can, because the rest of the window is mainly flat with a few ordinary, albeit clean, moments.

The crowds at Kiholo Bay? The guidance says it can get crowded *sometimes*, so for that clean window later in the month, expect company. It’s a consistent spot when there’s swell, but remember it’s exposed to the WNW swell and prefers WNW direction, so that W swell on the 27th is bang on.

For the first week, honestly, if you're looking at a beach and point setup with barely any swell and light winds, it's more of a kiteboarding scene than a paddle-in session.

Stay patient, that last week of August has a flicker of hope.

Rusty.

Short Range Forecast

Heavy rain (total 32mm), heaviest during Sat night. Warm (max 30°C on Fri afternoon, min 25°C on Thu night). Mainly strong winds.

Days 5-7 Weather Summary

Moderate rain (total 15mm), heaviest on Sun afternoon. Warm (max 28°C on Sun afternoon, min 25°C on Tue night). Wind will be generally light.

Thu
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
W
12
0.2
W
12
0.2
W
11
0.2
W
12
0.2
W
12
0.2
W
11
0.2
W
11
0.3
WNW
13
0.3
WNW
13
0.4
WNW
12
0.3
WNW
12
0.3
WNW
11
0.3
WNW
11
0.3
WNW
11
0.3
WNW
11
0.3
W
13
0.4
WNW
13
0.4
WNW
12
0.4
WNW
12
0.3
SW
16
Wave Graph
Metric surfscale
Energy kJ
25
11
10
12
11
9
10
34
32
49
27
25
24
24
24
31
55
48
48
41
Wind (km/h)
10
N
5
NE
15
N
10
NNE
10
ENE
10
E
5
NE
25
SSE
10
WSW
10
NNW
5
SSW
0
W
0
SW
5
E
5
NW
5
WSW
5
SW
5
W
5
NNW
0
SSE
Wind State
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
glassy
glassy
glassy
glassy
glassy
cross
on
glassy
glassy
High Tide
4:30PM0.83m
4:54AM0.53m
5:01PM0.75m
5:39AM0.57m
5:30PM0.66m
6:25AM0.59m
5:55PM0.57m
7:15AM0.60m
6:17PM0.49m
8:14AM0.60m
6:29PM0.41m
9:26AM0.60m
Low Tide
11:11PM0.08m
10:32AM0.11m
11:36PM0.08m
11:20AM0.18m
00:02AM0.08m
12:11PM0.25m
00:27AM0.10m
1:12PM0.31m
00:52AM0.12m
2:39PM0.36m
1:22AM0.14m
2:03AM0.16m
clear
clear
clear
clear
clear
rain showers
rain showers
heavy rain
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
rain showers
rain showers
rain showers
part cloud
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
6:51
6:50
6:50
6:49
 mm
1
2
28
1
2
4
1
2
1
1
2
2
1
Temp °C
29
27
29
30
28
28
28
27
28
28
28
28
28
27
27
27
26
26
27
26
Feels °C
31
29
30
31
30
31
32
24
31
31
33
33
32
31
31
31
30
31
31
30
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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