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Green Bay surfForecast / North / Taiwan
12 Day Weather and Surf, issued 1 pm Monday 09 Jun 2025 CST
Best Forecast Surf Conditions for Green Bay this week:
The surf forecast for Green Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jun 11) at 2AM. The primary swell is predicted to be 3ft and 6s period with a secondary swell of 1ft and 9s. Another secondary swell of 0ft and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Green Bay in the next 12 days are 16ft 11s and forecast to arrive on Friday (Jun 13) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4ft 5s period and expected on Wednesday (Jun 11) at 5AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 11th Jun) | 3ft (0.9m) 6s |
| Best Surf | 5AM (Fri 13th Jun) | 16ft (5.0m) 11s |
| Most Powerful | 5AM (Fri 13th Jun) | 16ft (5.0m) 11s |
Table - best surf conditions forecast for Green Bay over the next 12 days.
Mon 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Sat 21 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 5 | 6 | 9 | 5 | 6 | 6 | 7 | 9 | 10 | 10 | 11 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 9 | 6 | 6 | 8 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 45 | 44 | 28 | 51 | 53 | 161 | 98 | 189 | 312 | 297 | 1581 | 1000 | 400 | 3821 | 3037 | 1495 | 1149 | 1047 | 803 | 75 | 46 | 35 | 18 | 16 | 16 | 6 | 6 | 5 | 6 | 9 | 12 | 23 | 12 | 18 | 12 | 13 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross | cross | cross- off | cross | cross | cross- off | cross | cross | cross- off | cross- off | glass | cross- on | cross- on | cross | cross- off | glass | cross | cross- off | cross- off | cross- off | off | glass | glass | glass | glass | cross | off | glass | cross | glass | glass | glass | cross- off | glass |
High Tide / height (ft) | 9:35PM 3.94 | 7:45AM 3.25 | 10:20PM 4.04 | 8:15AM 3.25 | 11:05PM 4.07 | 8:47AM 3.25 | 11:50PM 4.1 | 9:21AM 3.25 | 12:34AM 4.07 | 10:00AM 3.22 | 1:18AM 4.04 | 10:47AM 3.18 | 1:59AM 4 | 11:49AM 3.08 | 2:38AM 3.94 | 1:07PM 3.02 | 3:15AM 3.9 | 2:37PM 3.02 | 3:51AM 3.81 | 4:06PM 3.12 | 4:26AM 3.74 | 5:29PM 3.38 | 5:03AM 3.67 | |||||||||||||
Low Tide / height (ft) | 3:09AM 2.72 | 2:39PM 0.56 | 3:54AM 2.82 | 3:17PM 0.46 | 4:36AM 2.89 | 3:57PM 0.43 | 5:17AM 2.92 | 4:39PM 0.43 | 6:00AM 2.92 | 5:21PM 0.46 | 6:45AM 2.85 | 6:05PM 0.59 | 7:34AM 2.76 | 6:52PM 0.75 | 8:24AM 2.53 | 7:41PM 1.02 | 9:14AM 2.23 | 8:36PM 1.31 | 10:03AM 1.84 | 9:38PM 1.67 | 10:51AM 1.41 | 10:47PM 2.03 | 11:39AM 0.95 | |||||||||||||
Mon 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Sat 21 | ||||||||||||||||||||||||
| Sunrise | - | - | 5:01 | - | - | 5:01 | - | - | 5:01 | - | - | 5:01 | - | - | 5:01 | - | - | 5:01 | - | - | 5:01 | - | - | 5:03 | - | - | 5:03 | - | - | 5:03 | - | - | 5:03 | - | - | 5:03 |
| Sunset | 6:42 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:44 | - | - | 6:44 | - | - | 6:44 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - |
 |  |  | | | | | | |  |  |  |  |  | |  |  | | |  | | | | | | | | | | | | | | | | | |
Rain (in) | 0.1 | - | - | - | - | - | - | - | - | - | 0.2 | - | 0.3 | 0.1 | - | 0.0 | 0.0 | - | 0.0 | - | - | - | - | - | 0.0 | 0.1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °F | 84 | 82 | 84 | 86 | 82 | 86 | 86 | 84 | 88 | 84 | 81 | 82 | 82 | 81 | 84 | 84 | 82 | 84 | 86 | 84 | 86 | 84 | 82 | 86 | 86 | 84 | 84 | 84 | 84 | 84 | 84 | 82 | 84 | 86 | 84 | 86 |
| Feels °F (?) | 93 | 91 | 90 | 93 | 86 | 90 | 86 | 81 | 81 | 79 | 77 | 90 | 90 | 90 | 93 | 93 | 91 | 93 | 93 | 93 | 93 | 90 | 93 | 97 | 97 | 93 | 93 | 93 | 95 | 95 | 95 | 93 | 95 | 97 | 95 | 97 |
Short Range Forecast: Light rain (total 0.1in), mostly falling on Mon afternoon. Warm (max 88°F on Thu morning, min 81°F on Mon night). Winds increasing (calm on Mon afternoon, strong winds from the SE by Thu morning). | Days 3-6 Weather Summary Moderate rain (total 0.7in), heaviest on Fri afternoon. Warm (max 84°F on Thu afternoon, min 79°F on Thu night). Winds decreasing (strong winds from the SE on Thu afternoon, calm by Sun morning). | Days 6-9 Weather Summary Light rain (total 0.2in), mostly falling on Sun afternoon. Warm (max 86°F on Sun afternoon, min 82°F on Sun night). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 86°F on Fri afternoon, min 82°F on Wed night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Green 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.
Information about the Green Bay Surf forecast
The above surf forecast table for Green Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Green Bay can be found by selecting the local surf guide option on the grey menu. Our Green 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 (Green 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 Green 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.
Green Bay is 15 km (9 miles) from the city of Keelung. If you plan a holiday in North Taiwan, look for hotels and other accommodation in Keelung. Keelung has rooms for a wide range of budgets as well as car hire and transport links.
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