Waiaha Rivermouth / Honls Surf Break

Lat Long: 19.63° N 155.99° W

Waiaha Rivermouth / Honls Surf Forecast and Surf Report

Issued: 1 pm 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Waiaha Rivermouth / Honls sea temperature is
26.9° C
0.8° 

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 19 Jul 2026:

  • Best quality surf: Tuesday 21 Jul, 11PM (local time) - 3ft (0.9m), 13s period, S swell with glassy winds.
  • Most powerful swell: Saturday 25 Jul, 2PM (local time) - 3.5ft (1.0m), 18s period, SSW swell with 685 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 8AM (local time) - 2ft (0.6m), 13s period with SSW 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 Sunday (Jul 19) at 8AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.3m and 7s 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 1.0m 18s and forecast to arrive on Saturday (Jul 25) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 23) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 19th Jul)2ft (0.6m) 13s
Best Surf11PM (Tue 21st Jul)3ft (0.9m) 13s
Most Powerful 2PM (Sat 25th Jul)3.5ft (1.0m) 18s

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


The Lowdown

Alright, Rusty here. Let's talk about Honls.

The next couple of weeks are looking pretty quiet overall. We've got a solid, consistent run of small, clean SSW groundswell, but the size is nearly always on the marginal side. The water temp is sitting at 80°, which is about average for this time of year, so no surprises there.

We kick off with Saturday the 18th. Waiaha Rivermouth / Honls is the only spot, and honestly, it's not much to write home about. You're looking at a tiny 2ft SSW swell at 14 seconds, so the energy is just barely in the moderate range (251). The wind is a light onshore from the WSW, which will keep it a bit bumpy. Not the day to get excited.

Sunday the 19th and Monday the 20th are real duds. The swell drops back even smaller, and the conditions just aren't there. You're looking at a few days of poor surf. Just leave the board at home.

Things start to look a little more interesting from Wednesday the 22nd. We see a solid jump in period on the SSW swell, hitting 24 seconds Wednesday morning and 23 seconds Wednesday afternoon. That's proper, long-period groundswell energy. The combined energy jumps way up (611 to 873), but the wave height is still stuck around 2ft. The wind also stays mostly light and onshore or cross-onshore, so the quality is still questionable. There's power in the water, but it's not translating into sizeable, rideable waves at this break.

Now, here's the standout. Keep your eyes on Thursday the 23rd of July. The afternoon session is the best the whole run has to offer. The swell is still a modest 3ft from the SSW, but the period is a solid 20 seconds, and the energy is strong (695). The real winner is the wind – it goes glassy out of the WSW at only 3 mph. The forecast says expect very good surf conditions. This is the one. If you're free, get out there. It'll be small but clean. It's a reef break and it's fairly consistent, but crowds are sometimes a thing here, so be aware.

After that, Thursday the 30th and beyond are a slow fade. The swell drops off, the period shortens, and we're back to small, weak, and mostly poor surf. The last couple of days of July and into August look like a complete blank with nothing to recommend.

So, to sum it up: don't bother before the 23rd. The 23rd of July afternoon is your best chance, and it’s a good one. After that, the window closes again.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sat night. Warm (max 27°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Tue night. Warm (max 27°C on Tue afternoon, min 24°C on Wed night). Wind will be generally light.

Sat
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
2
0
1
2
0
1
2
1
2
2
1
3
3
0
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)
0.6
SSW
14
0.6
SSW
12
0.4
S
19
0.5
S
18
0.5
S
16
0.9
S
16
0.9
S
15
0.9
S
15
0.9
S
14
0.8
S
14
0.9
S
13
0.6
SSW
24
0.7
SSW
23
0.8
SSW
21
0.8
SSW
20
0.9
SSW
20
0.9
SSW
18
0.7
SSW
18
0.8
SSW
17
0.7
SSW
20
Wave Graph
Metric surfscale
Energy kJ
158
117
110
155
139
407
353
339
315
236
268
437
550
611
517
544
464
322
353
399
Wind (km/h)
10
WSW
10
WSW
10
SW
10
W
0
NNW
10
SW
10
WSW
5
NNW
10
SSW
10
NW
10
SSE
15
W
10
SSW
10
WSW
10
SSW
5
SW
5
WNW
15
SSW
10
W
5
SSE
Wind State
on
cross-on
on
cross-on
glassy
on
cross-on
glassy
on
cross
cross
cross-on
on
cross-on
on
glassy
glassy
cross-on
cross-on
glassy
High Tide
6:47PM0.55m
8:16AM0.40m
7:21PM0.46m
9:27AM0.45m
7:57PM0.38m
10:36AM0.51m
8:40PM0.30m
11:37AM0.56m
9:45PM0.25m
12:30PM0.61m
11:11PM0.22m
1:15PM0.66m
00:26AM0.21m
Low Tide
1:50AM0.02m
1:35PM0.22m
2:23AM0.03m
3:14PM0.27m
2:59AM0.03m
5:17PM0.27m
3:40AM0.03m
7:08PM0.23m
4:27AM0.03m
8:14PM0.19m
5:17AM0.03m
8:54PM0.16m
part cloud
rain showers
part cloud
rain showers
part cloud
part cloud
clear
rain showers
part cloud
part cloud
rain showers
clear
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:56
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:05
7:04
7:04
7:04
7:04
7:02
 mm
2
1
1
1
2
4
Temp °C
27
26
27
26
26
27
27
26
27
27
26
27
26
26
26
26
25
27
26
26
Feels °C
30
29
30
28
29
28
28
29
28
29
29
29
29
29
28
28
28
28
28
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Waiaha Rivermouth / Honls:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waiaha Rivermouth / Honls surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest