Mahai'ula Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Saturday 21 Feb 2026 HST
Forecast update in hr  min  s Forecast update imminent
Mahai'ula Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mahai'ula Bay sea temperature is
25.0° C
(Which is slightly warmer than usual)


Time (HST) & DateWave HeightWave Period
Morning (21 Feb)--
Afternoon (21 Feb)1ft (0.3m)14s
Evening (21 Feb)1ft (0.3m)15s

Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Saturday
21
Sunday
22
Monday
23
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
NNE
0.2
WNW
0.9
NNE
0.9
NNE
0.9
NNE
0.3
SW
0.7
NE
0.3
SW
0.8
NNE
0.4
S
0.4
S
0.4
NW
0.4
NW
0.4
NW
0.4
NW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
NNE
0.6
N
0.8
NNE
1
N
Period(s) (?)91011119149158131312121212131313131318161615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)0100003303300036353534000000000
Wind
(km/h)
10
SSE
5
SSW
5
WSW
5
E
5
WSW
15
SW
15
SW
5
WNW
10
WSW
10
SW
5
WSW
5
S
10
WSW
10
W
10
W
5
NW
5
N
5
NNE
5
N
5
NNE
10
WNW
10
WNW
10
NW
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crossglassglassglasscross-
on
cross-
on
oncross-
on
cross-
on
glassglasscross-
on
cross-
on
onglasscrossglassglasscrossononcross-
on
cross
High Tide
/ height (m)
5:56AM
0.58
7:14PM
0.66
6:24AM
0.49
8:18PM
0.67
6:52AM
0.40
Low Tide
/ height (m)
12:17AM
0.22
12:22PM
0.06
1:23AM
0.29
12:54PM
0.08
3:01AM
0.33
1:34PM
0.10
Saturday
21
Sunday
22
Monday
23
Sunrise---6:48-------6:48-------6:48----
Sunset------6:25-------6:25-------6:27-
part cloud
part cloud
cloud
part cloud
part cloud
thunderstorm
rain showers
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
-----111121-------------
Temp. °C232222232424242322222222242423232222222224242322
Feels °C (?)252425252624242423232424252524252424242325252423
  • 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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