Waiaha Rivermouth / Honls Surf Break

Lat Long: 19.63° N 155.99° W

Waiaha Rivermouth / Honls Surf Forecast and Surf Report

Issued: 7 pm 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waiaha Rivermouth / Honls sea temperature is
27.4° C
1.0° 

Waiaha Rivermouth / Honls surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Waiaha Rivermouth / Honls surf forecast from 6 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 8PM (local time) - 2.5ft (0.7m), 20s period, S swell with glassy winds.
  • Most powerful swell: Wednesday 12 Aug, 11AM (local time) - 3.5ft (1.1m), 18s period, S swell with 758 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 5AM (local time) - 1ft (0.3m), 15s period with SW 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 Thursday (Aug 06) at 5AM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.3m and 15s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Waiaha Rivermouth / Honls in the next 16 days are 1.1m 18s and forecast to arrive on Wednesday (Aug 12) at 11AM. 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 3s period and expected on Friday (Aug 07) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 6th Aug)1ft (0.3m) 15s
Best Surf 8PM (Tue 11th Aug)2.5ft (0.7m) 20s
Most Powerful11AM (Wed 12th Aug)3.5ft (1.1m) 18s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Fri morning, min 25°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Mon afternoon. Warm (max 28°C on Sun morning, min 26°C on Sat night). Wind will be generally light.

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
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
1
0
0
2
1
1
2
0
1
2
1
2
3
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
SW
14
0.3
SW
14
0.4
SW
14
0.4
SSW
14
0.3
SSW
16
0.4
SW
20
0.4
SW
19
0.4
SW
18
0.4
SSW
18
0.4
SSW
18
0.4
SSW
18
0.5
S
16
0.6
S
16
0.9
SSW
15
0.7
SSW
15
0.7
SSW
15
0.9
SSW
14
0.8
SSW
14
0.7
S
19
Wave Graph
Metric surfscale
Energy kJ
37
33
52
80
50
98
95
106
124
109
102
135
186
314
240
228
361
265
365
Wind (km/h)
5
NW
15
W
15
SSW
10
NW
10
W
10
SW
5
WNW
10
WNW
5
WNW
0
WSW
10
WSW
10
WSW
0
WNW
10
SW
10
W
0
NW
10
W
15
NW
0
N
Wind State
cross
cross-on
on
cross
cross-on
on
glassy
cross-on
cross
glassy
cross-on
cross-on
glassy
on
cross-on
glassy
cross-on
cross
glassy
High Tide
8:09PM0.30m
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
Low Tide
2:55AM0.02m
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
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
rain showers
rain showers
clear
thunderstorm
thunderstorm
clear
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:57
6:55
6:55
6:54
6:53
 mm
2
1
3
4
1
2
Temp °C
26
27
27
26
28
28
27
28
28
27
28
28
27
28
28
27
28
27
27
Feels °C
30
29
30
30
30
30
30
31
31
30
31
31
31
31
31
30
31
28
31
  • 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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