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Surf Forecasts:

Blonde Reef surfForecast / HAW – Big Island / USA

information circle12 Day Weather and Surf, issued 1 am Monday 15 Sep 2025 HST
Forecast update in hr  min  s Forecast update imminent
Blonde Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Blonde Reef sea temperature is
26.9° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Blonde Reef this week:

The surf forecast for Blonde Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 8AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Blonde Reef in the next 12 days are 1.3m 8s and forecast to arrive on Monday (Sep 15) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 16th Sep)4.5ft (1.3m) 8s
Best Surf 8AM (Tue 16th Sep)4.5ft (1.3m) 8s
Most Powerful 8AM (Mon 15th Sep)4.5ft (1.3m) 8s

Table - best surf conditions forecast for Blonde Reef over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 3mm), mostly falling on Mon night. Warm (max 26°C on Mon morning, min 24°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Sat morning. Warm (max 26°C on Thu morning, min 24°C on Sat night). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
1
0
0
0
0
2
1
1
1
0
0
2
0
0
1
1
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
E
1.2
E
1.3
E
1.2
E
1.2
E
1.1
E
1.2
E
1.2
E
1.3
E
1.3
E
1.3
E
1.1
E
0.6
N
0.7
N
1.2
NNE
0.9
NE
1.1
NE
1.4
NE
1.4
ENE
1.3
NE
1.1
NE
Period(s) (?)88888888877711118788888
Wave
Graph
(?)Metric surfscale
Energy (?)285250275215216172184184208216233202232246262163255281331269227
Wind
(km/h)
10
ENE
15
NE
5
ENE
10
ENE
15
ENE
10
WNW
10
E
15
E
5
WSW
10
E
10
ENE
5
N
10
ENE
10
NE
5
NE
15
ENE
15
ENE
5
E
15
ENE
10
ESE
0
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrossglasscrosscross-
on		oncross-
on		cross-
on		glasscrosscross-
on		crosscrosscross-
off		glass
High Tide
/ height (m)
11:25AM
0.78
10:53PM
0.33
12:21PM
0.82
12:08AM
0.40
1:02PM
0.84
12:57AM
0.48
1:36PM
0.84
1:36AM
0.55
2:04PM
0.83
2:12AM
0.62
2:29PM
0.81
2:46AM
0.68
2:52PM
0.77
3:19AM
0.73
Low Tide
/ height (m)
7:08PM
0.26
4:38AM
0.10
7:27PM
0.22
5:50AM
0.07
7:47PM
0.18
6:43AM
0.05
8:08PM
0.14
7:27AM
0.05
8:28PM
0.11
8:05AM
0.06
8:48PM
0.08
8:42AM
0.09
9:08PM
0.05
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise6:07--6:07--6:07--6:07--6:07--6:07--6:07--
Sunset-6:22--6:22--6:21--6:20--6:19--6:17--6:16-
part cloud
clear
rain showers
part cloud
clear
part cloud
rain showers
clear
part cloud
part cloud
clear
rain showers
clear
clear
thunderstorm
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
Rain (mm)
--2---1----1--4627546
Temp. °C262625262625262625262625262626262625262625
Feels °C (?)272627272728282727282828272830282828282729
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Big Island

  1. weather stationWind Update Continuing clean conditions at Blonde Reef (calm at BUOY-ILOH1 2 km from Blonde Reef). 1.4m 8s swell from the E with a 0.6m 10s swell from the NNW. 2 swells combining to make bigger set waves.

    1 hour 32 minutes ago Blonde Reef
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<
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1 h 32 min ago

4 km/h
SSW
Clean
Please reload the page to see if there are any updates.

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 Blonde Reef 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.

View detailed surf forecast for Blonde Reef at:
surf-forecast.com

Information about the Blonde Reef Surf forecast

The above surf forecast table for Blonde Reef provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Blonde Reef can be found by selecting the local surf guide option on the grey menu. Our Blonde Reef 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 (Blonde Reef) 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 Blonde Reef 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.

Blonde Reef is 5 km (3 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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