Waiaha Rivermouth / Honls Surf Break

Lat Long: 19.63° N 155.99° W

Waiaha Rivermouth / Honls Surf Forecast and Surf Report

Issued: 7 pm 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Waiaha Rivermouth / Honls sea temperature is
27.1° C
1.2° 

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 10 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 8AM (local time) - 2ft (0.6m), 18s period, W swell with glassy winds.
  • Most powerful swell: Wednesday 15 Jul, 11PM (local time) - 3ft (0.9m), 15s period, WNW swell with 385 kJ wave energy.
  • Next surfable swell (1★+): Friday 10 Jul, 2AM (local time) - 2ft (0.6m), 12s 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 (Jul 10) at 2AM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.2m and 13s. 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 0.9m 15s and forecast to arrive on Wednesday (Jul 15) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Jul 12) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 10th Jul)2ft (0.6m) 12s
Best Surf 8AM (Tue 14th Jul)2ft (0.6m) 18s
Most Powerful11PM (Wed 15th Jul)3ft (0.9m) 15s

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


Alright folks, Rusty here. Let’s have a look at what’s on offer for the next couple of weeks.

Right off the bat, I gotta be honest with you – it’s a slow one. There’s a big gap of nothing happening until Friday afternoon, July 10th. So, don’t bother paddling out before then.

When things finally kick off, the only spot worth talking about is Waiaha Rivermouth / Honls (Honls). It’s a reef break for the advanced crew, and it’s fairly consistent, which is a saving grace. The water temp is about average for the time of year, so no shocks there.

The first real sign of life comes Friday afternoon. We’ve got a clean 2ft S swell, with a 12-second period. The energy is moderate (206), and the wind goes glassy. That’s clean, small surf for the afternoon session. Not a standout, but a start.

Saturday, July 11th brings a touch more energy. The morning is a bit questionable with a 2ft SW swell at 18 seconds – that’s a long-period groundswell, which is best for a reef like this, but the wind is light onshore. The afternoon cleans up again with glassy conditions, same 2ft SW swell. Still small.

Sunday, July 12th is the best on offer here. The afternoon sees a 2ft to 2ft SW swell, 16-second period, with glassy wind. The energy is building (330) and it’s clean. This is your window if you’re an advanced surfer and want a couple of proper, well-shaped waves. Crowds are sometimes an issue here, so be ready for that.

Monday the 13th through the rest of the week is a mixed bag. The swell bumps up to 2ft to 3ft, coming from the WNW, but the wind is mostly cross-on or onshore. The energy gets into the 400s and 500s (moderate to strong), but the conditions are marginal. The 19-second period on Tuesday morning is notable, but the cross-onshore breeze ruins it. This is more for the kite surfing crew than paddle surfing.

The second week, from around July 18th onward, stays small and a bit messy. Swell drops back to 2ft to 3ft, mostly from the south. The energy stays moderate (190 to 420). There’s a long-range swell on July 23rd with a 21-second period, but it’s only 2ft and the wind is poor. It’s a promising idea, but way too uncertain to get excited about a week and a half out.

Overall, the standout is Sunday, July 12th afternoon at Honls. Small, clean, glassy, and a decent long-period swell for the reef. It’s the only real highlight in a pretty quiet 16-day outlook.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 27°C on Fri morning, min 25°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Mon afternoon. Warm (max 26°C on Mon morning, min 24°C on Mon night). Wind will be generally light.

Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thu
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
0
2
1
1
2
1
1
2
2
0
1
2
2
1
3
1
2
2
1
1
Swell
Height Map
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
0.5
S
12
0.5
S
12
0.4
SW
19
0.5
SW
18
0.5
SW
18
0.6
SW
17
0.6
SW
16
0.7
SW
16
0.7
SW
16
0.7
SW
15
0.7
SW
15
0.5
W
18
0.6
W
19
0.7
W
16
0.7
W
17
0.8
WNW
16
0.8
WNW
16
0.9
WNW
15
0.8
WNW
15
0.8
WNW
15
Wave Graph
Metric surfscale
Energy kJ
103
73
78
96
157
152
243
208
258
248
229
217
162
251
267
273
329
320
380
292
284
Wind (km/h)
5
NW
10
WSW
5
W
5
NW
10
WSW
5
SSW
10
WNW
10
SW
5
WSW
10
NNW
10
SSW
10
WNW
5
SSE
10
WSW
10
SW
5
WNW
15
SW
10
WNW
5
S
10
W
10
SW
Wind State
glassy
on
glassy
glassy
on
glassy
cross
on
glassy
cross-off
on
cross
glassy
cross-on
on
glassy
on
cross-on
cross-on
cross-on
on
High Tide
11:12PM0.23m
1:13PM0.73m
00:28AM0.20m
2:01PM0.79m
1:35AM0.19m
2:48PM0.83m
2:33AM0.20m
3:32PM0.84m
3:28AM0.22m
4:15PM0.83m
4:20AM0.24m
4:56PM0.79m
5:14AM0.27m
5:34PM0.72m
Low Tide
5:23AM-0.05m
8:44PM0.12m
6:14AM-0.06m
9:33PM0.08m
7:06AM-0.08m
10:16PM0.05m
7:57AM-0.08m
10:56PM0.03m
8:47AM-0.06m
11:34PM0.02m
9:37AM-0.03m
00:10AM0.02m
10:28AM0.02m
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part cloud
rain showers
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:52
5:52
5:52
5:52
5:52
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:06
7:06
7:06
7:06
7:06
7:05
7:05
 mm
1
2
2
2
1
2
1
1
Temp °C
26
27
27
27
27
27
26
27
27
25
26
26
25
26
26
25
26
26
25
26
27
Feels °C
30
31
30
32
30
31
29
29
29
27
29
27
28
28
28
28
28
28
27
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)
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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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