Surf Forecasts:
How big are the waves at Lighthouse today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 5ft (1.6m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 5ft (1.5m), 11s period with WNW swell.
- Evening surf: Evening surf (21 Sep, local time) - 5ft (1.6m), 10s period with W swell.
The current surf forecast for Lighthouse at 7AM is: 1.7m 12s primary swell from a West-northwest direction and 0.4m 3s secondary swell from a South-southwest direction (forecast issued at 12:00am September 21). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 5ft (1.6m) | 12s |
| Afternoon (21 Sep) | 5ft (1.5m) | 11s |
| Evening (21 Sep) | 5ft (1.6m) | 10s |
Table - waves today at Lighthouse. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Tue night. Warm (max 20°C on Mon morning, min 12°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 10 | W 10 | W 10 | W 10 | W 11 | W 10 | W 11 | W 15 | W 14 | W 14 | W 14 | W 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1121 | 780 | 797 | 637 | 503 | 460 | 486 | 514 | 578 | 603 | 755 | 703 | 564 | 836 | 2157 | 2534 | 2394 | 2147 | 1864 | 1808 | 1369 | 1211 | 950 | 771 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross | cross-on | cross | cross-off | cross-off | cross | cross-off | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off |
High Tide | 2:41AM2.12m | 3:15PM2.52m | 3:51AM2.32m | 4:08PM2.78m | 4:35AM2.55m | 4:47PM3.04m | ||||||||||||||||||
Low Tide | 8:46AM1.33m | 9:51PM1.15m | 9:47AM1.11m | 10:33PM0.89m | 10:28AM0.87m | |||||||||||||||||||
 | | |  | | | |  | | | |  | | | |  | |  | | | | | | | |
 | — | — | 7:16 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:34 | — | — | — | — | — | — | — | 7:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 1 | 4 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 16 | 17 | 20 | 20 | 18 | 17 | 16 | 16 | 15 | 14 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 |
Feels °C | 10 | 12 | 15 | 16 | 18 | 18 | 16 | 15 | 15 | 14 | 13 | 13 | 11 | 11 | 10 | 11 | 10 | 9 | 9 | 10 | 10 | 11 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 10 | W 10 | W 10 | W 10 | W 11 | W 10 | W 11 | W 15 | W 14 | W 14 | W 14 | W 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 |
| kJ | 1121 | 780 | 797 | 637 | 503 | 460 | 486 | 514 | 578 | 603 | 755 | 703 | 564 | 836 | 2157 | 2534 | 2394 | 2147 | 1864 | 1808 | 1369 | 1211 | 950 | 771 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | — | — | — | — | NNW 8 | — | — | — | W 21 | W 19 | WNW 18 | W 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | 51 | 35 | — | — | — | — | 11 | — | — | — | 9 | 29 | 107 | 448 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 3 | SSW 3 | SSW 3 | S 3 | — | SW 2 | — | — | S 3 | S 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | 3 | 3 | 2 | — | 1 | — | — | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 8 | 0 | 5 | 5 | 25 | 10 | 10 | 0 | 0 | 5 | 10 | 41 | 34 | 17 | 33 | 33 | 33 | 41 | 41 | 41 | 298 | 217 | 0 | 0 |
Best forecast wave conditions in Sligo | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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