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Boa surfForecast / Timor / Indonesia
12 Day Weather and Surf, issued 7 pm Saturday 20 Dec 2025 WITAForecast update in hr min s Forecast update imminent
Boa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Boa sea temperature is
30.4° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Boa this week:
The surf forecast for Boa over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 21) at 8AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.7m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Boa in the next 12 days are 1.0m 18s and forecast to arrive on Saturday (Dec 27) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Monday (Dec 22) at 11AM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 21st Dec) | 3ft (0.9m) 12s |
| Best Surf | 8AM (Sun 21st Dec) | 3ft (0.9m) 12s |
| Most Powerful | 5PM (Sat 27th Dec) | 3.5ft (1.0m) 18s |
Table - best surf conditions forecast for Boa over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 59mm), heaviest during Mon morning. Warm (max 29°C on Sat night, min 27°C on Mon afternoon). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 44mm), heaviest during Thu morning. Warm (max 29°C on Tue night, min 26°C on Thu afternoon). Winds increasing (light winds from the WNW on Thu afternoon, fresh winds from the W by Fri afternoon). | |||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 11 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 14 | 18 | 18 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 263 | 190 | 190 | 153 | 77 | 76 | 293 | 281 | 428 | 257 | 335 | 335 | 246 | 239 | 205 | 181 | 138 | 173 | 285 | 442 | 595 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | |
High Tide / height (m) | 10:50PM 3.00 | 11:53AM 2.45 | 11:23PM 3.05 | 12:24PM 2.49 | 11:56PM 3.05 | 12:56PM 2.52 | 12:29AM 3.01 | 1:28PM 2.55 | 1:02AM 2.92 | 2:02PM 2.56 | 1:38AM 2.77 | 2:37PM 2.58 | 2:19AM 2.58 | 3:16PM 2.58 | ||||||||
Low Tide / height (m) | 5:35AM 0.21 | 5:20PM 0.99 | 6:07AM 0.18 | 5:53PM 0.96 | 6:38AM 0.19 | 6:27PM 0.97 | 7:09AM 0.24 | 7:03PM 1.00 | 7:40AM 0.33 | 7:42PM 1.03 | 8:12AM 0.47 | 8:27PM 1.07 | 8:46AM 0.64 | |||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | ||||||||||||||||
| Sunrise | - | 5:22 | - | - | 5:22 | - | - | 5:24 | - | - | 5:24 | - | - | 5:24 | - | - | 5:24 | - | - | 5:26 | - | |
| Sunset | - | - | 6:08 | - | - | 6:08 | - | - | 6:09 | - | - | 6:09 | - | - | 6:10 | - | - | 6:10 | - | - | 6:12 | |
 |  | | | | |  | | | | | | | | | | | | | |  | ||
Rain (mm) | 4 | 1 | 7 | 17 | 14 | 5 | 4 | 5 | 2 | 5 | 1 | 2 | 4 | 13 | 1 | 12 | 3 | 3 | 17 | 2 | - | |
| Temp. °C | 29 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 29 | |
| Feels °C (?) | 31 | 31 | 31 | 30 | 30 | 31 | 32 | 31 | 31 | 30 | 30 | 31 | 31 | 30 | 30 | 31 | 29 | 28 | 29 | 26 | 28 | |
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Surf Rating (10 Max)
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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 Boa 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.
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Information about the Boa Surf forecast
The above surf forecast table for Boa provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Boa can be found by selecting the local surf guide option on the grey menu. Our Boa 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 (Boa) 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 Boa 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.
Are you planning a holiday in Timor? If you are looking for accommodation near Boa, camping, hotels and holiday cottages in Timor, consider staying in Kupang which is 104 km (65 miles) away.
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