Kiholo Bay Surf Break

Lat Long: 19.86° N 155.93° W

Kiholo Bay Surf Forecast and Surf Report

Issued: 1 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kiholo Bay sea temperature is
27.9°C
1.1° 

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 Sep 2026:

  • Best quality surf: Tuesday 15 Sep, 5AM (local time) - 1ft (0.3m), 21s period, SW swell with glassy winds.
  • Most powerful swell: Wednesday 16 Sep, 8PM (local time) - 1.5ft (0.4m), 18s period, SW swell with 109 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 1ft (0.3m), 21s period with SW 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 Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.3m and 21s period. 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 18s and forecast to arrive on Wednesday (Sep 16) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Thursday (Sep 17) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 15th Sep)1ft (0.3m) 21s
Best Surf 5AM (Tue 15th Sep)1ft (0.3m) 21s
Most Powerful 8PM (Wed 16th Sep)1.5ft (0.4m) 18s

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


The Lowdown

Alright, Rusty here. Let's talk about your local surf for the next couple of weeks.

Alright, I'm not gonna sugarcoat it; this is a pretty tough outlook. We've got a long stretch of flat or really tiny conditions ahead. The water temperature is running a touch warmer than normal for this time of year, sitting at about 82°, which is nice for a paddle but won't help the waves.

We kick things off with a bunch of nothing. From now through to the morning of the 20th, it's mostly flat or just tiny little 0.7ft waves with poor form. There are a few glassy moments on the afternoon of the 14th and again on the 15th, but with no swell, you're just floating around. That's a solid week of dead water.

Sunday the 20th is where we get our first real glimpse of hope. The morning brings a 1ft southwest groundswell with a very long 15-second period. The combined energy is weak at just 33, but the wind is glassy and light from the NNW. It's small and the sets will be far apart because of that long period, but if you've got a log and a lot of patience, Kiholo Bay might offer a few clean, glassy rides. The afternoon stays glassy with a similar 1ft swell, so it's your best bet for a mellow session. Crowds are possible here, but on a day like this, there won't be many takers.

After that, it’s back to mostly flat or tiny wind-affected junk until the very end of the forecast.

Friday the 25th is actually the one to circle on the calendar. The morning is glassy again with a 0.7ft swell, but the period is an incredible 23 seconds. That's a super long period groundswell, and the combined energy is still weak at 54. The real story is the Friday afternoon. We get a 1ft swell from the northwest, jumping to a 22-second period and a combined energy of 121. The wind goes cross-offshore from the NE, which will clean up the face. This is your standout window, but it's far out so treat it as promising, not a guarantee. The waves will be very straight at the beach, but with that period and wind direction, the point could have a bit of shape.

Saturday the 26th sees a little more size, with the swell building to 2ft from the WNW and a 17-second period, but the wind turns cross, chopping things up. The energy is moderate at 249, but the conditions won't be as clean as Friday.

Sunday the 27th is your last call. A 2ft WNW swell with a 14-second period, and glassy conditions in the afternoon with rain showers. It's surfable, but very ordinary. If you missed Friday and Saturday, head out on Sunday afternoon for a few clean, long-period lines. For the rest of the time, it’s pretty grim. This is a long blank run, which is normal for the area when the trade winds take a break. Stick with it.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 29°C on Wed morning, min 25°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Fri afternoon. Warm (max 29°C on Wed afternoon, min 27°C on Wed night). Wind will be generally light.

Sun
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
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
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
W
11
0.2
W
11
0.2
W
10
0.7
NNE
8
0.2
SSW
21
0.4
SW
20
0.4
SW
19
0.4
SW
19
0.1
SW
12
0.5
SW
18
0.4
SW
17
0.4
SW
16
0.4
SW
16
0.2
W
9
0.4
SW
18
0.1
W
9
0.5
SW
16
0.4
SW
16
0.4
SW
16
0.4
SW
16
Wave Graph
Metric surfscale
Energy kJ
9
9
8
0
0
0
0
0
5
0
0
0
0
6
0
2
0
0
0
0
Wind (km/h)
5
WSW
5
NE
10
WNW
5
WNW
0
SW
5
W
5
WSW
5
NE
10
NNW
15
NNE
10
NNE
10
WSW
10
WNW
0
N
10
WSW
5
W
5
NNW
5
WSW
10
NW
0
E
Wind State
cross-on
glassy
on
glassy
glassy
on
glassy
glassy
cross-on
cross
cross
cross-on
on
glassy
cross-on
glassy
glassy
cross-on
cross-on
glassy
High Tide
4:49PM0.54m
5:46AM0.70m
5:13PM0.47m
6:28AM0.68m
5:32PM0.40m
7:17AM0.65m
5:42PM0.35m
8:22AM0.62m
9:48AM0.61m
11:12AM0.62m
11:48PM0.26m
Low Tide
10:58PM0.07m
12:07PM0.24m
11:20PM0.09m
1:05PM0.29m
11:43PM0.12m
2:31PM0.32m
00:10AM0.14m
00:45AM0.18m
1:55AM0.21m
7:47PM0.23m
4:00AM0.22m
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:11
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:27
6:25
6:24
6:23
6:22
6:22
 mm
1
1
2
4
1
1
Temp °C
28
26
28
28
27
28
28
27
29
29
28
29
28
27
29
28
27
28
28
27
Feels °C
31
30
31
31
32
31
32
31
31
31
30
32
31
31
33
32
31
31
31
31
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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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