Surf Forecasts:
Dumps (Brandon Bay) surf forecast from 14 Sep 2026:
- Best quality surf: Friday 18 Sep, 1AM (local time) - 15ft (4.5m), 14s period, NW swell with onshore winds.
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 16ft (5.0m), 15s period, NW swell with 10,551 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 1AM (local time) - 15ft (4.5m), 14s period with NW swell.
Best Forecast Surf Conditions for Dumps (Brandon Bay) this week:
The surf forecast for Dumps (Brandon Bay) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 1AM. The primary swell is predicted to be 4.5m and 14s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Dumps (Brandon Bay) in the next 16 days are 5.0m 15s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 18th Sep) | 15ft (4.5m) 14s |
| Best Surf | 1AM (Fri 18th Sep) | 15ft (4.5m) 14s |
| Most Powerful | 7PM (Thu 17th Sep) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Dumps (Brandon Bay) over the next 16 days.
The Lowdown
Alright, let’s size up Dumps in Brandon Bay for the next couple weeks.
The first week-plus is a rough one. From Monday 14th through most of that week, the surf conditions are pretty poor. There’s a lot of swell – moderate to strong energy (857 to 6484) – but the wind is mostly onshore or cross-onshore, making everything lumpy and choppy. When you’ve got that much size and onshore wind, it’s more of a kite-surfing scene than a paddle-surfing one. That Thursday 17th afternoon is a monster: 15ft swell, 13-second period, energy at 6484, but with a 35 km/h onshore wind, it’s a raw, blown-out mess.
Water temp is 62°, which is a touch warmer than usual for this time of year.
Things start to turn around around the weekend of the 20th, with marginal conditions but the swell still there. The real winner is Monday 21st September. That morning, the wind goes light and cross-offshore out of the SSE at 10 km/h, and the swell is a clean 5ft from the WNW with a 12-second period. The energy is moderate at 683, but the wind makes it glassy and clean. That Monday afternoon gets even better – glassy, 5ft from the west, 11 seconds. This is the standout: clean, well-shaped waves, perfect wind. Crowds can show up here sometimes, so get out early.
Tuesday 22nd stays clean but the swell drops to 4ft. Still fun, with cross-offshore winds in the morning and glassy afternoon. Wednesday 23rd morning is another clean one with 4ft from the NW, 11-second period.
Then Thursday 24th the swell picks up to around 7ft, but the wind goes cross or cross-on, so it’s a bit rougher. Not a total loss, but not as good as that Monday.
Into the second week, Friday 25th through Sunday 27th sees more clean windows: Friday morning has a 4ft west swell with light offshore ESE wind, and Friday afternoon is glassy with 4ft. Saturday 26th morning is glassy but only 3ft, very weak energy. Sunday 27th morning offers 6ft from the NNW, clean with light ESE wind – a good session if the direction works. But the afternoon turns cross-on and messy.
The very end of the period, Monday 28th, is tiny, and Tuesday 29th morning brings back some size with a 5ft WNW swell, 14-second period, and clean cross-offshore wind – that’s a promising but less certain long-range look.
Best bet: no question, Monday 21st September. Clean, glassy, solid 5ft with that long period. That’s the one to aim for.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon afternoon. Very mild (max 17°C on Mon morning, min 13°C on Wed morning). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Fri night. Very mild (max 17°C on Sat night, min 13°C on Thu night). Winds decreasing (fresh winds from the W on Thu morning, light winds from the SSW by Sat afternoon). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 8 | WSW 8 | W 9 | W 9 | WNW 9 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 13 | NW 14 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | NW 11 | WNW 12 | WNW 12 | WNW 13 | WNW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 90 | 223 | 625 | 846 | 897 | 1916 | 1239 | 800 | 755 | 1739 | 6484 | 8431 | 4045 | 2507 | 1559 | 1280 | 898 | 2069 | 1704 | 1935 | 1497 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | on | cross-on | cross-on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 7:45PM3.90m | 8:04AM3.75m | 8:21PM3.63m | 8:38AM3.51m | 8:58PM3.31m | 9:15AM3.24m | 9:41PM3.00m | 10:01AM2.97m | 10:38PM2.71m | 11:08AM2.75m | 00:05AM2.54m | 12:43PM2.69m | 1:47AM2.59m | ||||||||
Low Tide | 1:27PM0.26m | 1:45AM0.32m | 2:01PM0.48m | 2:17AM0.63m | 2:36PM0.75m | 2:51AM0.96m | 3:16PM1.06m | 3:30AM1.28m | 4:07PM1.36m | 4:27AM1.57m | 5:36PM1.58m | 6:18AM1.72m | 7:41PM1.53m | ||||||||
 |  |  |  |  |  |  | |  | | | |  | |  | | |  | | | | |
 | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 7:58 | — | — | 7:55 | — | — | 7:53 | — | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — |
mm | 3 | 12 | — | 1 | — | — | — | — | 3 | — | — | — | — | 2 | 8 | 5 | 2 | 1 | — | — | — |
Temp °C | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 16 | 15 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 16 | 17 | 18 | 18 | 16 |
Feels °C | 15 | 16 | 14 | 11 | 10 | 8 | 11 | 12 | 11 | 7 | 7 | 8 | 11 | 13 | 14 | 14 | 15 | 16 | 15 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WNW 11 | N 13 | N 12 | N 11 | WNW 11 | WNW 10 | WNW 10 | — | — | — | NW 14 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | NW 11 | WNW 12 | WNW 12 | WNW 13 | WNW 13 |
| kJ | 90 | 123 | 13 | 11 | 10 | 1916 | 1239 | 800 | — | — | — | 8431 | 4045 | 2507 | 1559 | 1280 | 898 | 2069 | 1704 | 1935 | 1497 |
Swell 2 Height (m) Direction Period (s) | NW 9 | N 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 9 | — | — | — | — |
| kJ | 59 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 341 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | WNW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 3 | WSW 8 | W 9 | W 9 | WNW 9 | NNW 6 | — | — | WNW 9 | WNW 10 | WNW 13 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 223 | 625 | 846 | 897 | 115 | — | — | 755 | 1739 | 6484 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 6 | 8 | 147 | 579 | 579 | 372 | 413 | 384 | 603 | 643 | 579 | 10 | 10 | 10 | 10 | 10 | 0 | 10 | 8 | 10 | 0 |
Best forecast wave conditions in Kerry | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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Information about the Dumps (Brandon Bay) Surf forecast
The above surf forecast table for Dumps (Brandon Bay) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dumps (Brandon Bay) can be found by selecting the local surf guide option on the grey menu. Our Dumps (Brandon Bay) 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 (Dumps (Brandon Bay)) 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 Dumps (Brandon Bay) 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 Dumps, camping, hotels and holiday cottages in Kerry, consider staying in Fenit which is 12 km (7 miles) away. Other places in and around Kerry where you can find information about places to rent, and car hire include Tra Li which is 22 km (14 miles) away, Valentia, Foynes and Bantry.
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