Waiaha Rivermouth / Honls surf break

Waiaha Rivermouth / Honls surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 7 am Thursday 28 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Waiaha Rivermouth / Honls surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waiaha Rivermouth / Honls sea temperature is
26.2° C
(Which is slightly warmer than usual)

Waiaha Rivermouth / Honls surf forecast from 28 May 2026:

  • Best quality surf: Monday 1 Jun, 11PM (local time) - 3.5ft (1.0m), 16s period, S swell with glassy winds.
  • Most powerful swell: Tuesday 2 Jun, 2PM (local time) - 5ft (1.6m), 19s period, SSW swell with 1,670 kJ wave energy.
  • Next surfable swell (1★+): Friday 29 May, 2AM (local time) - 2.5ft (0.7m), 21s period with S swell.

Best Forecast Surf Conditions for Waiaha Rivermouth / Honls this week:

The surf forecast for Waiaha Rivermouth / Honls over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 29) at 2AM. The primary swell is predicted to be 0.7m and 21s period with a secondary swell of 0.5m and 11s. Another secondary swell of 0.6m and 12s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Waiaha Rivermouth / Honls in the next 16 days are 1.6m 19s and forecast to arrive on Tuesday (Jun 02) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 8s period and expected on Thursday (Jun 04) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 29th May)2.5ft (0.7m) 21s
Best Surf11PM (Mon 1st Jun)3.5ft (1.0m) 16s
Most Powerful 2PM (Tue 2nd Jun)5ft (1.6m) 19s

Table - best surf conditions forecast for Waiaha Rivermouth / Honls over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Warm (max 26°C on Thu morning, min 24°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Warm (max 26°C on Sun afternoon, min 24°C on Sun morning). Wind will be generally light.

Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
3
1
2
2
2
1
2
1
2
2
2
2
3
3
3
4
2
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
S
12
0.4
SSW
22
0.7
S
21
1
S
20
1
S
19
1
S
18
1
S
17
0.9
SSW
16
0.9
SSW
16
0.9
SSW
15
0.8
SSW
14
0.7
S
19
1
S
18
0.9
SSW
18
1
S
20
1
S
19
1
S
18
1.6
SSW
17
1.4
SSW
16
1.5
SSW
16
1.2
SSW
15
Wave Graph
Metric surfscale
Energy kJ
106
161
436
775
721
632
562
432
406
360
280
365
639
510
775
767
661
1431
1029
1051
711
Wind (km/h)
10
SW
5
WSW
5
NW
10
SW
10
SW
5
S
10
WSW
10
W
5
SW
10
WNW
5
W
5
SSE
10
WSW
10
SW
5
NW
10
SW
10
WNW
5
WSW
15
WNW
5
WSW
10
NW
on
cross-on
glassy
on
on
cross-on
on
cross-on
glassy
cross
glassy
cross
on
on
cross
on
cross
glassy
cross-on
cross-on
cross
High Tide
2:36PM0.64m
1:53AM0.23m
3:10PM0.67m
2:33AM0.20m
3:44PM0.68m
3:13AM0.19m
4:18PM0.69m
3:53AM0.17m
4:54PM0.69m
4:36AM0.16m
5:30PM0.68m
5:25AM0.16m
6:08PM0.66m
Low Tide
9:41PM0.11m
7:40AM-0.05m
10:27PM0.09m
8:09AM-0.04m
11:10PM0.08m
8:39AM-0.03m
11:51PM0.07m
9:10AM-0.02m
00:34AM0.07m
9:43AM-0.00m
1:16AM0.06m
10:19AM0.02m
1:58AM0.06m
clear
clear
rain showers
clear
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
rain showers
part cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:45
5:43
5:43
5:43
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:58
6:58
6:59
6:59
6:59
1
1
2
2
4
Temp °C
26
26
25
25
25
24
25
25
25
25
26
25
26
26
25
26
26
26
26
25
25
27
27
27
26
27
27
27
26
28
27
27
26
28
28
28
27
27
29
28
27
28
Swell 1
Height (m)
Direction
Period (s)
0.6
S
12
0.6
S
12
0.7
S
21
1
S
20
1
S
19
1
S
18
1
S
17
0.9
SSW
16
0.9
SSW
16
0.9
SSW
15
0.8
SSW
14
0.8
SSW
14
1
S
18
0.9
SSW
18
1
S
20
1.1
SSW
16
1.1
SSW
15
1.6
SSW
17
1.4
SSW
16
1.5
SSW
16
1.2
SSW
15
Energy kJ
106
104
436
775
721
632
562
432
406
360
280
276
639
510
775
644
589
1431
1029
1051
711
Swell 2
Height (m)
Direction
Period (s)
0.5
NW
13
0.4
SSW
22
0.5
S
11
0.4
SSW
11
0.4
S
11
0.5
S
12
0.4
S
12
0.4
S
12
0.3
S
11
0.3
S
11
0.4
SSW
20
0.7
S
19
0.7
SSW
14
0.6
SSW
13
0.7
SSW
14
1
S
19
1
S
18
0.4
SSE
7
0.4
SE
8
Energy kJ
83
161
66
40
37
65
43
42
21
20
131
365
189
135
195
767
661
21
17
Swell 3
Height (m)
Direction
Period (s)
0.3
S
23
0.4
NW
12
0.3
NW
12
0.3
S
14
0.3
NW
11
0.2
SSW
12
0.3
SW
16
0.1
NW
10
0.2
W
11
0.2
S
21
0.3
SSW
11
0.3
S
10
0.5
S
22
0.7
SSW
16
0.2
NNW
10
0.2
NNW
9
Energy kJ
97
37
22
35
19
14
41
4
9
36
22
18
236
266
11
8
Wind waves
Height (m)
Direction
Period (s)
0.6
NW
12
0.5
NW
11
0.4
NNW
10
Energy kJ
89
59
38
Nearest Offshore or Glassy
Rating
(10 max)
1
1
3
2
2
1
1
1
2
3
2
3
3
3
1
4
1
4
1
1
1
Distance (km)
19
19
0
100
100
4
100
100
0
85
0
0
117
19
95
117
47
0
47
47
95
Best forecast wave conditions in Big Island
Rating
(10 max)
1
1
3
2
2
3
1
1
2
3
2
4
3
1
1
4
1
1
2
Best forecast wave conditions in United States
Rating
(10 max)
4
4
4
5
3
3
2
3
4
4
2
5
3
3
4
4
3
4
3
3
4
Header Global
Rating
(10 max)
7
5
5
5
5
5
7
7
6
6
5
5
5
4
5
5
5
4
5
8
7
  • Map Icons:
  • Break
  • 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 Waiaha Rivermouth / Honls Surf forecast

The above surf forecast table for Waiaha Rivermouth / Honls provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waiaha Rivermouth / Honls can be found by selecting the local surf guide option on the grey menu. Our Waiaha Rivermouth / Honls 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 (Waiaha Rivermouth / Honls) 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 Waiaha Rivermouth / Honls 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.

Waiaha Rivermouth / Honls 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.

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