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Surf Forecasts:

Yokohama Bay surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Monday 15 Sep 2025 HST
Forecast update in hr  min  s Forecast update imminent
Yokohama Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Yokohama Bay sea temperature is
27.0° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Yokohama Bay this week:

The surf forecast for Yokohama Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 2AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.6m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Yokohama Bay in the next 12 days are 1.0m 15s and forecast to arrive on Saturday (Sep 20) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Sunday (Sep 21) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 16th Sep)1.5ft (0.5m) 13s
Best Surf 2PM (Sat 20th Sep)3ft (0.9m) 16s
Most Powerful 8PM (Sat 20th Sep)3.5ft (1.0m) 15s

Table - best surf conditions forecast for Yokohama Bay over the next 12 days.

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

Short Range Forecast Mostly dry. Warm (max 28°C on Wed afternoon, min 24°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Thu night). Mainly fresh winds.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
0
1
1
1
1
1
1
1
2
1
2
2
2
2
2
2
2
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SSW
0.4
SSW
0.4
SSW
0.4
SW
0.4
SSW
0.4
SSW
0.4
SSW
0.5
SSW
0.8
NNE
0.6
SSW
1
NNE
0.5
SSW
0.8
SSW
0.9
SSW
0.9
SSW
1
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.6
SSW
0.5
SSW
Period(s) (?)1312131615151514813918171615151413131312
Wave
Graph
(?)Metric surfscale
Energy (?)1549785144140113148166155145297406446412421473347297233125133
Wind
(km/h)
15
ENE
15
ENE
25
NE
20
ENE
20
ENE
25
ENE
15
E
20
ENE
25
ENE
20
ENE
20
NE
30
NE
20
ENE
20
NE
20
NE
20
E
20
ENE
25
ENE
20
ENE
15
ENE
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoff
High Tide
/ height (m)
11:48PM
0.20
12:33PM
0.66
12:48AM
0.25
1:15PM
0.66
1:29AM
0.30
1:50PM
0.64
2:06AM
0.36
2:20PM
0.61
2:40AM
0.42
2:46PM
0.57
3:14AM
0.47
3:09PM
0.52
3:48AM
0.52
3:30PM
0.47
Low Tide
/ height (m)
8:19PM 4:17AM
0.16 0.13
8:21PM
0.15
5:39AM
0.12
8:33PM
0.14
6:41AM
0.12
8:46PM
0.14
7:32AM
0.12
9:00PM
0.13
8:18AM
0.14
9:14PM
0.12
9:03AM
0.16
9:28PM
0.11
9:47AM
0.19
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
Sunrise-6:20--6:20--6:20--6:20--6:20--6:20--6:20-
Sunset--6:35--6:34--6:32--6:31--6:30--6:30--6:29
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C252727252728262728262727262728262728262728
Feels °C (?)242624242627262627262626262828272728262729
  • 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 - Oahu

  1. weather stationWind Update Offshore wind has become cross-off at Yokohama Bay (light winds from the NNE at SHIP1807 18 km from Yokohama Bay). 0.4m 11s groundswell from the W with a 0.3m 12s groundswell from the SSW. 2 swells combining to make bigger set waves.

    59 minutes ago Yokohama Bay
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18 km away, 59 min ago

17 km/h
NNE
0.0
27.0
Air / Water (°C)
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 Yokohama 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 Yokohama Bay at:
surf-forecast.com

Information about the Yokohama Bay Surf forecast

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

Yokohama Bay is 24 km (15 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.

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