Surf Forecasts:
Annascaul Rivermouth surf forecast from 7 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 4AM (local time) - 10ft (3.0m), 10s period, WNW swell with 1,608 kJ wave energy.
Best Forecast Surf Conditions for Annascaul Rivermouth this week:
The most powerful waves expected at Annascaul Rivermouth in the next 16 days are 3.0m 10s and forecast to arrive on Tuesday (Sep 08) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 11s period and expected on Tuesday (Sep 08) at 1PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Tue 8th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Annascaul Rivermouth over the next 16 days.
The Lowdown
Alright, let’s talk about Annascaul Rivermouth. It’s a sheltered, very consistent little setup, but the first week or so is a total bust. The water is about 62°F, which is a touch warmer than usual, but that won’t matter when you’re just standing on the beach.
Starting Monday the 7th, there’s a big 10ft swell from the WSW with strong onshore winds at 12 mph. The combined energy is pumping at 1789, but it’s messy. That pattern holds through Tuesday and Wednesday, with the swell dropping out to nothing in between. Thursday the 10th brings another 8ft pulse from the WSW, 1114 energy, but the wind is choppy and cross-onshore. Not a good look.
Friday the 11th is the first day you might even think about it. The swell is 6ft from the W, but the wind is still cross-onshore. It’s only a 1 out of 10 in my book. The weekend is rough, and Monday the 14th delivers another 8ft WSW swell with more onshore wind.
Then we get to Thursday the 17th of September. The morning is the best of the run. The wind goes clean and cross-offshore from the SE at 9 mph, and the swell sits at 8ft from the WSW with 1216 combined energy. That’s a lot of power, and it’s only for the experienced crew. The afternoon jumps to 10ft from the W, but the wind turns cross-shore and the quality drops.
Saturday the 19th is where it gets big. The morning shows a solid 12ft swell from the W and 2482 combined energy. The wind is light cross-shore. This is for experts only, and it’s been noted as marginal, but the energy is undeniable. The period is 10 seconds, so you’ll feel it. After that, the swell fades into the following week with much smaller, cleaner waves.
The two standouts are the morning of Thursday the 17th and the morning of Saturday the 19th. Thursday is a big, clean day for strong surfers. Saturday is a proper heavy water session. Don’t bother before that.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Mon afternoon. Very mild (max 16°C on Mon morning, min 13°C on Mon afternoon). Winds decreasing (fresh winds from the NW on Tue morning, light winds from the W by Tue night). | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Sat morning. Very mild (max 17°C on Thu morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | WSW 10 | WSW 10 | W 9 | SW 11 | SW 11 | WNW 10 | SW 8 | WNW 8 | WSW 7 | WSW 9 | WSW 10 | W 9 | W 8 | WNW 9 | WNW 14 | WSW 8 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1789 | 1175 | 1345 | 5 | 5 | 0 | 21 | 235 | 359 | 1114 | 821 | 483 | 488 | 599 | 0 | 824 | 932 | 528 | 301 | 199 | 315 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross | cross | cross | cross-on | on | cross-on | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:25PM2.91m | 3:08AM2.93m | 3:25PM3.19m | 4:01AM3.19m | 4:14PM3.44m | 4:46AM3.40m | 4:58PM3.63m | 5:27AM3.54m | 5:38PM3.72m | 6:04AM3.59m | 6:15PM3.70m | 6:39AM3.56m | 6:52PM3.59m | ||||||||
Low Tide | 8:49PM0.64m | 9:11AM0.72m | 9:43PM0.34m | 10:00AM0.48m | 10:28PM0.10m | 10:43AM0.28m | 11:08PM-0.06m | 11:21AM0.15m | 11:45PM-0.12m | 11:58AM0.10m | 00:20AM-0.08m | 12:34PM0.14m | 00:54AM0.06m | ||||||||
 |  |  |  | |  | | |  |  | | | |  | | | | | | | | |
 | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — |
mm | 2 | 9 | — | — | — | — | — | — | 2 | 2 | 3 | — | — | — | — | 8 | 4 | — | — | — | — |
Temp °C | 16 | 14 | 14 | 15 | 15 | 14 | 16 | 16 | 14 | 17 | 17 | 15 | 15 | 15 | 16 | 17 | 17 | 16 | 16 | 18 | 17 |
Feels °C | 13 | 11 | 11 | 8 | 8 | 10 | 13 | 12 | 11 | 15 | 16 | 13 | 13 | 13 | 13 | 15 | 16 | 14 | 15 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | — | NW 9 | WNW 12 | SW 11 | SW 11 | WNW 10 | WNW 9 | WNW 8 | N 9 | N 8 | N 8 | N 7 | W 8 | WNW 9 | WNW 14 | NW 14 | NW 13 | NW 12 | NW 11 | NW 10 | NW 10 |
| kJ | — | 321 | 14 | 5 | 5 | 1267 | 525 | 235 | 78 | 12 | 5 | 1 | 488 | 599 | 3609 | 2805 | 1972 | 1129 | 558 | 328 | 108 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | N 11 | N 10 | N 10 | W 11 | N 8 | — | — | — | NW 11 | — | SW 15 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | N 9 |
| kJ | — | — | — | — | — | 640 | 400 | 326 | 22 | 12 | — | — | — | 99 | — | 8 | 932 | 528 | 301 | 199 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 8 | NW 9 | W 11 | — | — | — | — | NW 17 | — | — | SW 15 | — | SW 13 | SW 13 | N 14 |
| kJ | — | — | — | — | — | — | 21 | 13 | 10 | — | — | — | — | 147 | — | — | 8 | — | 7 | 7 | 4 |
Wind waves Height (m) Direction Period (s) | WSW 10 | WSW 10 | W 9 | WNW 10 | NW 11 | — | — | SW 7 | WSW 7 | WSW 9 | WSW 10 | W 9 | — | — | — | WSW 8 | — | — | — | S 4 | WSW 8 |
| kJ | 1789 | 1175 | 1345 | 1958 | 2794 | — | — | 26 | 359 | 1114 | 821 | 483 | — | — | — | 824 | — | — | — | 28 | 315 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 437 | 142 | 370 | 1066 | 486 | 13 | 24 | 244 | 13 | 402 | 142 | 101 | 13 | 8 | 13 | 13 | 142 | 13 | 13 | 13 |
Best forecast wave conditions in Kerry | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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Information about the Annascaul Rivermouth Surf forecast
The above surf forecast table for Annascaul Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Annascaul Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Annascaul Rivermouth 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 (Annascaul Rivermouth) 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 Annascaul Rivermouth 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.
Are you planning a holiday in Kerry? If you are looking for accommodation near Annascaul Rivermouth, camping, hotels and holiday cottages in Kerry, consider staying in Fenit which is 21 km (13 miles) away. Other places in and around Kerry where you can find information about places to rent, and car hire include Valentia which is 27 km (17 miles) away, Tra Li, Bantry and Foynes.
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