Blonde Reef surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 1 am Friday 13 Mar 2026 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
24.6° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Mar 13) at 8AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.6m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Blonde Reef in the next 16 days are 2.1m 8s and forecast to arrive on Saturday (Mar 14) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Saturday (Mar 14) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 13th Mar)2.5ft (0.8m) 8s
Best Surf 5PM (Sun 15th Mar)3.5ft (1.1m) 8s
Most Powerful 2AM (Sat 14th Mar)7ft (2.1m) 8s

Table - best surf conditions forecast for Blonde Reef over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 11mm), heaviest on Fri morning. Warm (max 28°C on Sun morning, min 23°C on Fri morning). Winds decreasing (strong winds from the S on Sat morning, calm by Sun afternoon).

Days 3-6 Weather Summary Heavy rain (total 48mm), heaviest during Tue night. Warm (max 26°C on Mon morning, min 22°C on Tue night). Wind will be generally light.

Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
1
0
1
0
1
2
1
0
0
1
0
0
0
2
2
2
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
0.8
ESE
1.3
E
2.1
SE
1.4
ESE
1.3
ESE
1.1
ESE
1.1
ESE
1.1
ESE
1.1
ESE
1
ESE
1
ESE
1.3
SE
0.7
ESE
0.5
NNW
0.7
NNW
1
N
0.9
NNW
1.1
N
1.2
N
1.2
N
1.2
N
Period(s) (?)88888888888881213131212121211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)662065152512321651491461421221191916386170329232365404376350
Wind
(km/h)
25
SSE
25
S
40
S
40
S
30
SSW
35
SSW
30
SSW
0
WNW
5
WSW
5
NNE
10
N
5
WNW
5
NE
5
N
10
NNE
5
ESE
10
SE
5
E
10
E
10
E
0
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffoffglassglassononcross-
on
cross-
on
oncross-
on
glasscross-
off
glasscrosscrossglass
High Tide
/ height (m)
11:47AM
0.29
12:57AM
0.69
12:35PM
0.36
1:26AM
0.73
1:15PM
0.44
1:54AM
0.76
1:52PM
0.52
2:20AM
0.77
2:30PM
0.59
2:47AM
0.76
3:09PM
0.66
3:14AM
0.72
3:50PM
0.72
3:42AM
0.66
Low Tide
/ height (m)
5:31PM
0.06
7:48AM
0.17
6:23PM
0.02
8:02AM
0.12
7:06PM
-0.02
8:20AM
0.07
7:46PM
-0.04
8:42AM
0.01
8:26PM
-0.03
9:05AM
-0.04
9:08PM
-0.01
9:31AM
-0.08
9:52PM
0.04
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise6:30--6:28--6:28--6:26--6:26--6:26--6:24--
Sunset-6:29--6:29--6:29--6:30--6:30--6:30--6:30-
light rain
light rain
light rain
thunderstorm
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
rain showers
thunderstorm
heavy rain
mod rain
light rain
mod rain
light rain
light rain
light rain
Rain (mm)
3242------2-2322856235
Temp. °C242524272726282625262625242423232222232222
Feels °C (?)232222232324262928292929272827262424262424
  • 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

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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 16 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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