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Surf Forecasts:
Boa surfForecast / Timor / Indonesia
48hr Weather and Surf, issued 1 am Monday 18 May 2026 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
28.7° C
(Which is normal for this time of year)How big are the waves at Boa today?
The current surf forecast for Boa at 7AM is: 0.7m 14s primary swell from a Southwest direction and 0.1m 24s secondary swell from a Southwest direction, 0.9m 4s secondary swell from a East direction (forecast issued at 01:00am May 18). The wind direction is predicted to be cross-onshore.
| Time (WITA) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.7m) | 14s |
| Afternoon (18 May) | 2ft (0.6m) | 14s |
| Evening (18 May) | 1.5ft (0.5m) | 14s |
Table - waves today at Boa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Mon night. Warm (max 28°C on Mon morning, min 26°C on Tue afternoon). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | E 6 | E 6 | E 6 | SW 13 | SW 20 | SW 19 | SW 19 | SW 13 | SW 10 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | |
153 | 192 | 198 | 200 | 127 | 121 | 91 | 117 | 127 | 137 | 62 | 97 | 184 | 184 | 133 | 36 | 155 | 375 | 375 | 307 | 249 | 243 | 380 | 371 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | |
High Tide | 11:21PM2.68m | 11:02AM3.50m | 00:02AM2.65m | 11:44AM3.48m | 00:45AM2.57m | 12:27PM3.36m | ||||||||||||||||||
Low Tide | 4:52AM0.72m | 5:47PM-0.19m | 5:32AM0.72m | 6:30PM-0.12m | 6:14AM0.77m | 7:14PM0.05m | ||||||||||||||||||
 | |  | |  | | | | | | | | |  | | | |  | | | |  |  | | |
 | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — |
3 | 1 | — | — | 2 | 1 | 1 | 1 | 2 | 4 | 4 | 4 | 1 | — | 1 | 1 | 1 | — | 1 | 2 | — | — | — | — | |
Temp °C | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 27 |
29 | 28 | 30 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 28 | 28 | 26 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 28 | 28 | 28 | 26 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SW 19 | ESE 6 | E 6 | ESE 6 | ESE 6 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 |
 kJ | 153 | 192 | 198 | 200 | 127 | 121 | 91 | 31 | 50 | 45 | 44 | 43 | 184 | 101 | 78 | 40 | 44 | 375 | 375 | 307 | 249 | 243 | 380 | 371 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 24 | SW 24 | SW 10 | SW 10 | SW 10 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 8 | SW 8 | SW 13 | SW 10 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 8 | SW 13 |
| kJ | 12 | 12 | 22 | 22 | 35 | 34 | 33 | 63 | 63 | 62 | 62 | 61 | 24 | 22 | 103 | 36 | 89 | 89 | 89 | 69 | 50 | 51 | 10 | 41 |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 9 | SW 24 | SW 24 | SW 22 | SW 21 | SW 21 | WSW 21 | SW 21 | SW 20 | SW 13 | SW 19 | SW 19 | NNW 4 | SW 18 | NNW 4 | S 6 | W 10 | W 9 | W 9 | W 9 | W 9 |
| kJ | 2 | 2 | 2 | 2 | 22 | 22 | 18 | 72 | 72 | 45 | 18 | 97 | 61 | 184 | 133 | 11 | 155 | 4 | 3 | 2 | 2 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 4 | E 4 | E 4 | E 5 | E 5 | E 6 | E 6 | E 6 | E 6 | ESE 6 | ESE 6 | E 6 | — | — | E 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 5 |
| kJ | 63 | 78 | 28 | 28 | 28 | 51 | 71 | 117 | 127 | 137 | 151 | 139 | 119 | 128 | — | — | 13 | 88 | 104 | 103 | 100 | 92 | 89 | 85 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 125 | 125 | 125 | 27 | 150 | 336 | 336 | 336 | 336 | 179 | 3 | 3 | 3 | 3 | 3 | 27 | 3 | 3 | 3 | 3 | 3 | 125 | 125 | 336 |
Best forecast wave conditions in Timor | ||||||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||||||
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