Surf Forecasts:
Fire Island surf forecast from 18 Sep 2026:
- Best quality surf: Thursday 24 Sep, 5PM (local time) - 11ft (3.5m), 12s period, ESE swell with cross-offshore winds.
- Most powerful swell: Thursday 24 Sep, 2PM (local time) - 13ft (4.0m), 11s period, E swell with 3,550 kJ wave energy.
- Next surfable swell (1★+): Thursday 24 Sep, 5PM (local time) - 11ft (3.5m), 12s period with ESE swell.
Best Forecast Surf Conditions for Fire Island this week:
The surf forecast for Fire Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 24) at 5PM. The primary swell is predicted to be 3.5m and 12s period with a secondary swell of 2.2m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Fire Island in the next 16 days are 4.0m 11s and forecast to arrive on Thursday (Sep 24) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Thursday (Sep 24) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Thu 24th Sep) | 11ft (3.5m) 12s |
| Best Surf | 5PM (Thu 24th Sep) | 11ft (3.5m) 12s |
| Most Powerful | 2PM (Thu 24th Sep) | 13ft (4.0m) 11s |
Table - best surf conditions forecast for Fire Island over the next 16 days.
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun night. Warm (max 26°C on Fri afternoon, min 15°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 44mm), heaviest during Mon morning. Very mild (max 16°C on Mon morning, min 12°C on Tue afternoon). Mainly strong winds. | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||
AM | 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) | SE 12 | SE 12 | SE 12 | E 6 | E 7 | ESE 7 | SE 11 | SE 11 | SE 9 | ESE 5 | ESE 6 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 11 | ESE 12 | ENE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 23 | 22 | 21 | 52 | 145 | 62 | 18 | 18 | 23 | 33 | 114 | 336 | 599 | 688 | 721 | 1119 | 1464 | 1658 | 2380 | 2915 | 2540 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-on | on | on | on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off |
High Tide | 1:35PM0.89m | 2:21AM0.73m | 2:46PM0.87m | 3:34AM0.73m | 3:53PM0.88m | 4:34AM0.77m | 4:49PM0.91m | 5:22AM0.82m | 5:36PM0.94m | 6:03AM0.88m | 6:15PM0.98m | 6:39AM0.94m | 6:52PM1.01m | ||||||||
Low Tide | 7:16PM0.30m | 7:19AM0.30m | 8:17PM0.31m | 8:21AM0.31m | 9:17PM0.30m | 9:22AM0.30m | 10:12PM0.26m | 10:19AM0.26m | 11:01PM0.22m | 11:12AM0.21m | 11:46PM0.16m | 12:01PM0.15m | 00:28AM0.12m | ||||||||
 |  |  | | | |  |  |  |  | |  |  | |  | | | | | | | |
 | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | 6:55 | — | — | 6:53 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — |
mm | — | — | — | — | — | — | — | 2 | 18 | 9 | — | 9 | 14 | 9 | 1 | — | — | 2 | 13 | 12 | 1 |
Temp °C | 22 | 26 | 24 | 16 | 17 | 17 | 18 | 19 | 20 | 16 | 16 | 16 | 14 | 12 | 15 | 15 | 16 | 16 | 14 | 14 | 13 |
Feels °C | 20 | 24 | 21 | 12 | 13 | 14 | 15 | 17 | 21 | 12 | 12 | 12 | 8 | 4 | 8 | 8 | 8 | 8 | 7 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | ESE 7 | ESE 7 | SE 8 | E 6 | SE 11 | ESE 7 | ESE 5 | SE 9 | SE 9 | — | — | — | — | — | — | — | — | ESE 11 | ESE 12 | E 11 |
| kJ | 7 | 9 | 9 | 11 | 84 | 5 | 9 | 15 | 23 | 29 | — | — | — | — | — | — | — | — | 2380 | 2915 | 1459 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | S 4 | SE 12 | SE 12 | SE 12 | ESE 11 | SE 11 | SE 11 | SSE 9 | E 8 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 10 | 3 | 21 | 21 | 5 | 12 | 18 | 18 | 8 | 5 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | ESE 9 | — | — | — | — | ESE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 23 | 22 | 8 | — | — | — | — | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | E 6 | E 7 | ESE 7 | ESE 5 | — | SE 5 | ESE 5 | ESE 6 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | NE 6 | NE 7 | ENE 11 |
| kJ | — | — | 8 | 52 | 145 | 62 | 13 | — | 22 | 33 | 114 | 336 | 599 | 688 | 721 | 1119 | 1464 | 1658 | 177 | 487 | 2540 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 68 | 752 | 238 | 1185 | 750 | 764 | 750 | 104 | 378 | 884 | 570 | 548 | 1176 | 598 | 1176 | 2531 | 752 | 764 | 751 | 485 |
Best forecast wave conditions in Long Island New York | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Fire Island 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 Fire Island Surf forecast
The above surf forecast table for Fire Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fire Island can be found by selecting the local surf guide option on the grey menu. Our Fire Island 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 (Fire Island) 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 Fire Island 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.
Fire Island is 8 km (5 miles) from Mastic. If you plan a vacation in Long Island New York, look for hotels and other accommodation in Mastic. Mastic has rooms for a wide range of budgets as well as car hire and transport links.
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