Josiahs Bay Surf Forecast

/ Tortola (12 surf breaks) /

British Virgin Islands (22 surf breaks) / Lat Long: (18.45° N 64.59° W)

Surf Forecasts:

Josiahs Bay surfForecast / Tortola / British Virgin Islands

12 Day Weather and Surf, issued 7 am Tuesday 16 Sep 2025 AST

Forecast update in hr min s Forecast update imminent

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

Today's Josiahs Bay sea temperature is 29.9° C
(Which is 1.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Josiahs Bay this week:

The surf forecast for Josiahs Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 16) at 5PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.2m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Josiahs Bay in the next 12 days are 1.3m 13s and forecast to arrive on Saturday (Sep 20) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 10s period and expected on Friday (Sep 19) at 11AM.

Wave Type	Time (AST) & Date	Wave Height & Period
Next good surf (1 star+)	5PM (Tue 16th Sep)	3.5ft (1.0m) 8s
Best Surf	11AM (Sat 20th Sep)	4.5ft (1.3m) 13s
Most Powerful	8AM (Sat 20th Sep)	4.5ft (1.3m) 13s

Table - best surf conditions forecast for Josiahs 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 29mm), heaviest during Wed afternoon. Warm (max 29°C on Tue morning, min 27°C on Wed night). Mainly fresh winds.									Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri morning, min 27°C on Sat night). Wind will be generally light.
	Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
	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	1	0	0	0	0	0	0	0	0	1	1	2	2	2	1	2	1	1	1	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	ENE	ENE	ENE	ENE
Period(s) (?)	8	8	8	8	8	8	8	8	8	16	14	12	13	12	11	10	10	12	10	10	9
Wave Graph (?)
kJ (?)	169	127	137	161	157	187	153	124	98	20	294	434	543	407	289	225	270	531	241	200	103
Wind (km/h)	E	ENE	E	ESE	E	E	E	E	E	ESE	ESE	E	ESE	ENE	NNE	NNE	NNW	WNW	WNW	SSW	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	glass	glass	cross- on	cross	glass	cross- on
High Tide / height (m)		4:48PM 0.47	3:55AM 0.28		5:47PM 0.46		5:10AM 0.31	6:37PM 0.45		6:18AM 0.34	7:20PM 0.44		7:16AM 0.38	7:57PM 0.42		8:06AM 0.41		8:31PM 0.40	8:52AM 0.44		9:02PM 0.37
Low Tide / height (m)	9:13AM 0.04		11:37PM 0.20	10:24AM 0.06		12:21AM 0.20	11:30AM 0.08		12:58AM 0.19	12:30PM 0.10		1:30AM 0.17	1:26PM 0.11		2:00AM 0.16		2:18PM 0.13	2:29AM 0.14		3:07PM 0.14	2:57AM 0.12

	Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
Sunrise	6:05	-	-	6:05	-	-	6:05	-	-	6:05	-	-	6:05	-	-	6:05	-	-	6:07	-	-
Sunset	-	6:20	-	-	6:19	-	-	6:17	-	-	6:16	-	-	6:15	-	-	6:15	-	-	6:14	-

Rain (mm)	-	-	4	3	9	1	-	4	8	-	1	2	1	-	-	-	-	-	-	-	-
Temp. °C	29	29	29	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	27	28	28
Feels °C (?)	30	30	30	28	29	28	27	30	29	29	30	30	30	32	31	32	33	32	31	33	31

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 Tortola

Wind Update Offshore wind has become cross-off at Josiahs Bay (light winds from the E at BeefIsland-Tortola 6 km from Josiahs Bay). 1.2m 8s swell from the E to make surfable waves.
49 minutes ago Josiahs Bay

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Actual: 49 min ago

19 km/h

Cross-Off

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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 Josiahs 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 Josiahs Bay Surf forecast

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

Josiahs Bay is 7 km (4 miles) from Road Town. If you plan a holiday in Tortola - BVI, look for hotels and other accommodation in Road Town. Road Town has rooms for a wide range of budgets as well as car hire and transport links.