Surf Forecasts:
40th Street surf forecast from 12 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 8PM (local time) - 1ft (0.3m), 12s period, ESE swell with 27 kJ wave energy.
Best Forecast Surf Conditions for 40th Street this week:
The most powerful waves expected at 40th Street in the next 16 days are 0.3m 12s and forecast to arrive on Tuesday (Aug 18) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 5s period and expected on Saturday (Aug 15) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Tue 18th Aug) | 1ft (0.3m) 12s |
Table - best surf conditions forecast for 40th Street over the next 16 days.
Short Range ForecastHeavy rain (total 24mm), heaviest during Thu night. Warm (max 31°C on Wed afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 31°C on Mon afternoon, min 27°C on Mon morning). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 7 | S 3 | E 7 | E 7 | SSE 3 | SE 4 | ESE 4 | NE 13 | SE 4 | SE 4 | SE 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 13 | ESE 9 | ESE 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 4 | 6 | 4 | 4 | 4 | 4 | 3 | 7 | 14 | 20 | 15 | 6 | 20 | 12 | 6 | 6 | 7 | 17 | 15 | 23 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | glassy | cross-on | off | glassy | cross | cross-off |
High Tide | 9:03PM1.00m | 9:21AM0.98m | 9:48PM1.01m | 10:09AM0.99m | 10:31PM0.99m | 10:57AM0.98m | 11:13PM0.96m | 11:43AM0.94m | 11:54PM0.91m | 12:28PM0.90m | 00:37AM0.86m | 1:14PM0.84m | 1:20AM0.81m | |||||||
Low Tide | 2:42PM-0.11m | 3:10AM-0.03m | 3:32PM-0.09m | 3:58AM-0.05m | 4:20PM-0.05m | 4:45AM-0.06m | 5:07PM0.01m | 5:32AM-0.04m | 5:54PM0.07m | 6:18AM0.01m | 6:42PM0.14m | 7:06AM0.06m | 7:32PM0.21m | |||||||
 |  |  |  |  | | | | | |  |  | | | | | | | | | |
 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | 7:59 | — | — | 7:58 | — | — | 7:57 | — | — | 7:57 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — |
mm | 3 | 2 | — | 2 | 12 | — | — | 2 | 3 | — | — | — | — | — | — | 3 | 1 | — | 1 | 3 |
Temp °C | 31 | 30 | 31 | 31 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 31 | 30 | 30 | 31 | 29 |
Feels °C | 34 | 32 | 34 | 32 | 32 | 31 | 32 | 31 | 32 | 32 | 32 | 32 | 31 | 31 | 34 | 33 | 33 | 34 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | ESE 3 | SSE 4 | E 7 | NE 12 | NE 12 | ESE 8 | SSE 5 | SSE 5 | SSE 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | NE 6 | ESE 11 |
| kJ | 4 | 4 | 4 | 4 | 1 | 2 | 1 | 1 | 6 | 5 | 6 | 4 | 5 | 6 | 6 | 6 | 7 | 14 | 6 | 23 |
Swell 2 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | S 4 | E 7 | NE 13 | E 8 | E 8 | NE 11 | ESE 4 | NE 10 | ESE 8 | SSE 4 | NE 9 | NE 6 | NNE 6 | ESE 9 | NE 6 |
| kJ | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 7 | 1 | 4 | 5 | 3 | 4 | 12 | 2 | 3 | 1 | 4 | 15 | 5 |
Swell 3 Height (m) Direction Period (s) | NE 8 | — | — | — | — | E 7 | NE 9 | NE 8 | NE 9 | NE 9 | NE 8 | ESE 8 | E 8 | NE 10 | NE 10 | — | NE 9 | ESE 13 | ESE 12 | ENE 11 |
| kJ | 3 | — | — | — | — | 1 | 3 | 3 | 3 | 3 | 3 | 6 | 1 | 4 | 4 | — | 3 | 17 | 14 | 11 |
Wind waves Height (m) Direction Period (s) | SSE 3 | S 3 | SSE 3 | SE 3 | SSE 3 | SE 4 | ESE 4 | ESE 3 | SE 4 | SE 4 | SE 5 | — | ESE 8 | — | — | — | — | — | — | SE 3 |
| kJ | 1 | 6 | 1 | 2 | 4 | 4 | 3 | 5 | 14 | 20 | 15 | — | 20 | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1696 | 1195 | 1268 | 1590 | 1225 | 977 | 1696 | 1207 | 977 | 1696 | 293 | 293 | 293 | 307 | 293 | 293 | 293 | 167 | 293 | 60 |
Best forecast wave conditions in South Florida | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 40th Street 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 40th Street Surf forecast
The above surf forecast table for 40th Street provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 40th Street can be found by selecting the local surf guide option on the grey menu. Our 40th Street 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 (40th Street) 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 40th Street 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.
40th Street is 5 km (3 miles) from the city of Delray Beach. If you plan a vacation in South Florida, look for hotels and other accommodation in Delray Beach. Delray Beach has rooms for a wide range of budgets as well as car hire and transport links.
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