Hull Bay Surf Forecast

/ Saint Thomas (4 surf breaks) /

US Virgin Islands (4 surf breaks)

Surf Forecasts:

Hull Bay surfForecast / Saint Thomas / US Virgin Islands

12 Day Weather and Surf, issued 1 am Thursday 18 Sep 2025 AST

Forecast update in hr min s Forecast update imminent

Hull Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Hull Bay sea temperature is 29.9° C
(Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Hull Bay this week:

The surf forecast for Hull Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 2PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Hull Bay in the next 12 days are 0.8m 11s and forecast to arrive on Saturday (Sep 20) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Sep 24) at 11AM.

Wave Type	Time (AST) & Date	Wave Height & Period
Next good surf (1 star+)	2PM (Fri 19th Sep)	2.5ft (0.7m) 8s
Best Surf	2PM (Fri 19th Sep)	2.5ft (0.7m) 8s
Most Powerful	5AM (Sat 20th Sep)	2.5ft (0.8m) 11s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Heavy rain (total 30mm), heaviest during Thu morning. Warm (max 29°C on Sat afternoon, min 27°C on Thu morning). Wind will be generally light.									Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Tue afternoon. Warm (max 29°C on Sun afternoon, min 28°C on Sun morning). Wind will be generally light.
	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	1	1	1	1	1	1	0	0	0	0	0	0	0	0	1	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	NE	NE	ENE	NNE	NNE	NNE	NNE	NNE	NNE
Period(s) (?)	8	8	7	7	9	11	10	10	10	9	9	8	7	7	8	14	13	13	12	12	12
Wave Graph (?)
kJ (?)	98	80	77	40	52	140	147	106	111	94	62	39	16	14	12	21	35	34	50	50	56
Wind (km/h)	ESE	ESE	ESE	ESE	ESE	SE	SSE	SE	ESE	SE	ESE	ESE	ESE	E	ESE	E	ENE	ESE	SE	SE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- off	cross- off	off	cross- off
High Tide / height (m)		7:34PM 0.51		5:45AM 0.29	7:58PM 0.48		7:01AM 0.34		8:13PM 0.44	8:04AM 0.38		8:19PM 0.39	8:59AM 0.41		8:21PM 0.35	9:50AM 0.44		8:19PM 0.31	10:40AM 0.46		8:01PM 0.28
Low Tide / height (m)	11:00AM 0.11		2:39AM 0.27	12:05PM 0.16		2:38AM 0.27	1:10PM 0.20		2:44AM 0.26		2:18PM 0.24	2:51AM 0.24		3:31PM 0.27	2:56AM 0.21		4:52PM 0.28	3:00AM 0.18		6:34PM 0.28	3:03AM 0.15

	Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	6:07	-	-	6:07	-	-	6:07	-	-	6:07	-	-	6:07	-	-	6:07	-	-	6:07	-	-
Sunset	-	6:19	-	-	6:17	-	-	6:17	-	-	6:16	-	-	6:15	-	-	6:15	-	-	6:14	-

Rain (mm)	11	2	3	2	7	5	-	-	-	-	-	3	-	-	-	-	2	3	3	7	14
Temp. °C	28	27	28	28	28	28	28	29	28	28	29	28	28	28	29	28	29	29	28	28	27
Feels °C (?)	28	28	29	29	30	31	31	33	31	31	32	31	30	30	30	29	31	29	28	30	27

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Saint Thomas

Wind Update Continuing clean conditions at Hull Bay (calm at BUOY-CHAV3 5 km from Hull Bay). 0.9m 4s local chop from the ENE with a 0.5m 8s swell from the NE and a 0.2m 11s groundswell from the NNE. 3 swells combining to make bigger set waves.
48 minutes ago Hull Bay

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Actual: 48 min ago

2 km/h

Clean

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hull 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 Hull Bay Surf forecast

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

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