Waiaha Rivermouth / Honls surf break

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

information circle12 Day Weather and Surf, issued 1 pm Thursday 08 Jan 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
25.8° C
(Which is 1.0°C warmer than normal for this time of year)
Nearby Cam: 9km away, Kohanaiki Web Camera


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

The surf forecast for Waiaha Rivermouth / Honls over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jan 08) at 11PM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.2m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Waiaha Rivermouth / Honls in the next 12 days are 1.3m 16s and forecast to arrive on Tuesday (Jan 13) at 5AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 8th Jan)2ft (0.6m) 13s
Best Surf 8PM (Mon 12th Jan)3.5ft (1.0m) 17s
Most Powerful 5AM (Tue 13th Jan)4.5ft (1.3m) 16s

Table - best surf conditions forecast for Waiaha Rivermouth / Honls over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 25°C on Thu afternoon, min 23°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Sun afternoon, min 23°C on Sun night). Wind will be generally light.

Thu
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
1
0
0
1
0
1
1
1
1
0
0
1
3
2
2
2
1
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.6
WNW
0.6
WNW
0.6
WNW
0.4
WNW
0.4
WNW
0.3
NW
0.4
NNW
0.6
NW
0.6
WNW
0.6
WNW
0.5
NW
0.3
NW
0.8
NW
0.9
NW
1.3
NW
1.2
NW
1.1
NW
0.9
NW
0.8
NW
0.6
NW
0.5
NW
Period(s) (?)131312121215161411121221181715141313131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)118109995654491001478598697138843476360640624919312269
Wind
(km/h)
10
NNW
5
S
5
W
5
NW
0
W
5
WSW
5
WNW
0
WSW
5
W
5
NW
5
NW
10
W
5
WNW
10
NE
10
NW
5
WNW
5
NW
10
WSW
10
SSW
20
S
0
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
glasscross-
on
crossglassonglassglassglasscrosscrosscross-
on
crossoffcrosscrossglasscross-
on
oncross-
on
glass
High Tide
/ height (m)
8:46PM
0.35
7:39AM
0.44
10:00PM
0.41
8:15AM
0.36
11:07PM
0.47
9:02AM
0.29
12:03AM
0.53
10:12AM
0.23
12:50AM
0.59
11:34AM
0.20
1:32AM
0.63
12:43PM
0.19
2:10AM
0.67
1:37PM
0.19
Low Tide
/ height (m)
2:17PM
0.02
1:49AM
0.22
2:51PM
0.02
3:37AM
0.26
3:27PM
0.01
5:45AM
0.25
4:08PM
0.01
7:27AM
0.21
4:52PM
0.01
8:27AM
0.16
5:38PM
-0.00
9:07AM
0.12
6:23PM
-0.01
9:40AM
0.10
Thu
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Sunrise--7:00--7:00--7:00--7:00--7:00--7:01--7:01
Sunset6:00--6:00--6:01--6:02--6:02--6:04--6:05--
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
rain showers
rain showers
Rain (mm)
-------------------23
Temp. °C252425252324242324242324242324242324252424
Feels °C (?)262627262626252526262625262525252526272426
  • 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 12 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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