Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Keawaiki Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Wednesday 18 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Keawaiki Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keawaiki Bay sea temperature is
25.1° C
 (Which is slightly warmer than usual)

How big are the waves at Keawaiki Bay today?

The current surf forecast for Keawaiki Bay at 5AM is: 0.8m 14s primary swell from a North direction and 0.5m 9s secondary swell from a West direction (forecast issued at 01:00am March 18). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (18 Mar)2.5ft (0.8m)13s
Afternoon (18 Mar)3ft (0.9m)13s
Evening (18 Mar)2.5ft (0.8m)12s

Table - waves today at Keawaiki Bay. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
2
1
2
1
1
2
1
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
N
0.7
N
0.8
N
0.8
N
0.9
N
0.9
N
0.9
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.8
N
0.7
N
0.7
N
Period(s) (?)141414131313121212121212111111111111111010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)150195236229276268251190184184180174163157155152149146141133131128100104
Wind
(km/h)
15
NNE
5
ESE
5
SSW
5
SSW
10
WSW
10
W
5
W
5
WNW
5
WNW
0
W
0
N
5
N
10
WNW
10
WNW
5
W
5
SSW
10
S
5
SSE
10
SSW
10
SSW
10
SW
15
SW
15
SW
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossglasscrossglasscross-
on		onglassglassglassglassglassglassononcross-
on		crosscross-
off		cross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross
High Tide
/ height (m)
3:21AM
0.72
3:53PM
0.65
3:51AM
0.67
4:31PM
0.71
4:21AM
0.60
5:12PM
0.75
Low Tide
/ height (m)
9:04PM
0.11
9:44AM
0.06
9:50PM
0.12
10:06AM
0.04
10:39PM
0.15
10:31AM
0.03
Wednesday
18
Thursday
19
Friday
20
Sunrise---6:28-------6:28-------6:26----
Sunset------6:34-------6:34-------6:34-
light rain
cloud
light rain
light rain
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
cloud
cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
Rain (mm)
2-11111--------11----122
Temp. °C242424252525252424242424262625252424242526262525
Feels °C (?)262726282727282727282827282828282727262828272627
  • 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

Latest Updates

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling
Ben Mondy

Surf-Forecast Premium Launches 16-day Forecast and New, Improved Modelling

Get 16% off your subscription with code 16DAYS—available for 16 days only, until March 25, 2026. Surf-Forecast Premium just got better. All paid subscribers will now see a full 16-day forecast, surf reports and wind and tide data for over 7,000 of the world's best surf spots. Premium members will also have access to a new high-resolution forecast model, which enhances our current forecasts by making them quicker and more accurate. That’s more lead time. More confidence. More chances to score g

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal
travel
Surf Forecast

Save Up to 20% on SIXT Rental Cars Worldwide – Exclusive Surf-Forecast Deal

Surf road trips just got even better. Surf-Forecast users can now save up to 20% on SIXT rental cars worldwide during the promotional period until March 31, 2026. Whether you’re planning a legendary California road trip, chasing waves along Europe’s coasts, or exploring remote surf destinations, this exclusive SIXT offer helps you travel smarter and cheaper. And if you want some inspiration on where to go, check out our article Five Iconic Surf Road Trips. Click and get your SIXT discount

Read more

Read more

Discover more articles and updates in the Greenroom.

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 Keawaiki Bay 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 Keawaiki Bay at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest