Surf Forecasts:
How big are the waves at Block Island today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 1.5ft (0.4m), 8s period with E swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 1.5ft (0.4m), 7s period with E swell.
- Evening surf: Evening surf (17 Sep, local time) - 1.5ft (0.4m), 7s period with E swell.
The current surf forecast for Block Island at 9PM is: 0.4m 7s primary swell from a East direction and 0.1m 12s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a South-southwest direction (forecast issued at 01:00pm September 17). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 1.5ft (0.4m) | 8s |
| Afternoon (17 Sep) | 1.5ft (0.4m) | 7s |
| Evening (17 Sep) | 1.5ft (0.4m) | 7s |
Table - waves today at Block Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 14°C on Sat morning). Mainly fresh winds. | |||||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||||
11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 7 | E 7 | E 7 | E 7 | SW 4 | SW 5 | SW 6 | SW 5 | SE 12 | SE 12 | SSW 5 | SE 12 | SE 12 | SE 12 | SE 12 | ENE 6 | ENE 6 | ENE 5 | E 5 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 18 | 17 | 16 | 15 | 15 | 40 | 83 | 86 | 49 | 28 | 22 | 17 | 21 | 21 | 21 | 21 | 132 | 83 | 33 | 23 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | cross | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on |
High Tide | 1:03PM0.82m | 1:13AM0.61m | 2:11PM0.77m | 2:30AM0.59m | 3:24PM0.75m | ||||||||||||||||
Low Tide | 7:58PM0.27m | 6:24AM0.25m | 9:08PM0.29m | 7:41AM0.28m | 10:08PM0.27m | ||||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — |
 | — | — | 6:52 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 23 | 25 | 26 | 24 | 21 | 18 | 16 | 14 | 14 | 15 | 16 | 15 | 15 |
Feels °C | 21 | 20 | 19 | 19 | 19 | 18 | 19 | 22 | 24 | 26 | 27 | 24 | 16 | 11 | 10 | 7 | 8 | 10 | 12 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | ESE 7 | ESE 7 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 5 | SE 8 | ESE 12 | ESE 11 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 18 | 17 | 16 | 15 | 15 | 8 | 10 | 10 | 49 | 28 | 17 | 17 | 9 | 6 | 6 | 11 | 13 | 13 | 23 | 23 | 22 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | ESE 12 | ESE 12 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 8 | SE 12 | SW 5 | SW 5 | SE 11 | SE 11 | SE 11 |
| kJ | 6 | 6 | 6 | 6 | 6 | 6 | 15 | 14 | 10 | 9 | 9 | 9 | 9 | 9 | 11 | 21 | 1 | 1 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 12 | SE 12 | SE 12 | SE 9 | SE 12 | SE 12 | SE 12 | SSW 5 | — | SW 5 | SW 5 | SW 5 | — |
| kJ | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 14 | 22 | 22 | 12 | 21 | 21 | 21 | 2 | — | 1 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 4 | SW 3 | SSW 4 | SW 4 | SW 4 | SW 5 | SW 6 | — | — | — | — | — | NNE 3 | ENE 4 | ENE 5 | ENE 6 | ENE 6 | ENE 5 | E 5 | E 4 |
| kJ | 2 | 3 | 4 | 8 | 15 | 40 | 83 | 86 | — | — | — | — | — | 10 | 38 | 117 | 132 | 83 | 33 | 21 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 160 | 702 | 1008 | 198 | 204 | 195 | 160 | 24 | 29 | 49 | 49 | 634 | 634 | 642 | 743 | 130 | 130 | 130 | 1156 | 1148 | 198 |
Best forecast wave conditions in Rhode Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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