Portslade Surf Forecast

/ South Coast (36 surf breaks) /

UK (471 surf breaks) / Lat Long: (50.83° N 0.24° W)

Surf Forecasts:

Portslade surfForecast / South Coast / UK

12 Day Weather and Surf, issued 6 pm Wednesday 17 Sep 2025 BST

Forecast update in hr min s Forecast update imminent

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

Today's Portslade sea temperature is 18.1° C
(Which is 1.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Portslade this week:

The surf forecast for Portslade over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 22) at 1AM. The primary swell is predicted to be 0.9m and 7s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Portslade in the next 12 days are 2.5m 7s and forecast to arrive on Sunday (Sep 21) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Sep 23) at 1AM.

Wave Type	Time (BST) & Date	Wave Height & Period
Next good surf (1 star+)	1AM (Mon 22nd Sep)	3ft (0.9m) 7s
Best Surf	1AM (Mon 22nd Sep)	3ft (0.9m) 7s
Most Powerful	1PM (Sun 21st Sep)	8ft (2.5m) 7s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 21°C on Fri afternoon, min 17°C on Wed afternoon). Winds decreasing (strong winds from the SW on Wed afternoon, calm by Fri afternoon).											Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Mon morning. Warm (max 20°C on Sat night, min 11°C on Mon night). Winds decreasing (strong winds from the SW on Sat night, calm by Sun night).
	Wed 17		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	NNE	N	N	N
Period(s) (?)	7	6	6	6	6	10	10	10	10	9	5	7	8	7	7	6	5	4	4	4	4
Wave Graph (?)
kJ (?)	396	226	124	120	28	17	15	34	23	21	95	598	682	86	23	10	1	0	0	0	0
Wind (km/h)	SW	WSW	SW	SW	SW	SSE	S	N	SSW	SSW	SSW	SW	SW	SSW	ENE	NNE	NNE	N	N	N	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	glass	on	on	cross- on	cross- on	cross- on	glass	cross- off	cross- off	cross- off	off	off	off	off
High Tide / height (m)		9:09PM 4.94	9:48AM 5.19		10:12PM 5.26	10:42AM 5.51		11:01PM 5.58	11:25AM 5.78		11:41PM 5.83	12:01PM 5.97		12:16AM 5.99	12:34PM 6.08		12:48AM 6.05		1:04PM 6.10	1:18AM 6.03
Low Tide / height (m)		3:27AM 1.65		4:02PM 1.67		4:26AM 1.35	4:53PM 1.36		5:12AM 1.08	5:33PM 1.10		5:49AM 0.88	6:07PM 0.91		6:22AM 0.76	6:39PM 0.81		6:53AM 0.72		7:08PM 0.78	7:22AM 0.77

	Wed 17		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
Sunrise	-	-	6:39	-	-	6:41	-	-	6:43	-	-	6:43	-	-	6:46	-	-	6:47	-	-	6:48
Sunset	7:10	-	-	7:08	-	-	7:07	-	-	7:05	-	-	7:01	-	-	7:00	-	-	6:58	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	5	-	-	-	-	-	-
Temp. °C	18	17	18	18	17	19	21	21	19	19	20	15	16	14	13	16	14	14	15	13	15
Feels °C (?)	12	12	13	14	16	18	21	20	17	16	18	6	9	12	9	14	8	8	8	8	10

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 South Coast

Wind Update The wind is still cross-on at Portslade (fresh winds from the SW at Shoreham-by-sea Airport 2 km from Portslade). A 1.9m swell from the WSW
2 hours 10 minutes ago Portslade

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2 h 10 min ago

31 km/h

Cross-On

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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 Portslade 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 Portslade Surf forecast

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

Portslade is 2 km (1 miles) from the city of Portslade. If you plan a holiday in South Coast of England, look for hotels and other accommodation in Portslade. Portslade has rooms for a wide range of budgets as well as car hire and transport links.