Surf Forecasts:
Zaga (Koroni) surf forecast from 10 Sep 2026:
- Most powerful swell: Wednesday 16 Sep, 9PM (local time) - 4.5ft (1.3m), 6s period, SE swell with 114 kJ wave energy.
Best Forecast Surf Conditions for Zaga (Koroni) this week:
The most powerful waves expected at Zaga (Koroni) in the next 16 days are 1.3m 6s and forecast to arrive on Wednesday (Sep 16) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Sep 13) at 6PM.
| Wave Type | Time (EEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Wed 16th Sep) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Zaga (Koroni) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s cooking for this stretch.
Honestly, it’s a pretty grim start. We’ve got a long stretch of days with no real swell to speak of. From now, right through the middle of next week, it’s flat. Nothing. Not a ripple worth paddling for. You’re looking at a good five or six days of open water with zero energy in the water. That’s a tough run.
The first real pulse of life shows up on Tuesday the 15th in the afternoon, but it’s tiny. A weak 1.3ft from the SE with a period of only 3 seconds, and just 2 units of combined energy. That’s barely a bump. And with a light cross-onshore wind and choppy conditions, it’s not worth getting excited about. Wednesday the 16th stays pretty much the same story – small, onshore, messy.
Moving into Thursday the 17th, things start to get a little more interesting. We’ve got a 2.6ft SSE swell, period creeping up to 6 seconds, and the combined energy moves up to 48. It’s still small, but for this break that’s honestly the best it gets in this outlook. The morning looks clean with a light NE cross breeze. Zaga is a sheltered spot that rarely breaks, so any clean surf here is notable.
Let’s be real about Friday the 18th: it drops right back off. 0.7ft and almost zero energy again. That’s the theme. The only other notable window is Tuesday the 22nd. The afternoon brings a 5.2ft S swell with a 7-second period, and the combined energy hits moderate at 374. That’s the biggest push in the entire 16 days, but it’s a direct onshore wind from the SSE, making it sloppy and tough. At 5.2ft it’s still fine for most surfers, but the quality won’t be there.
Water temp is a big talking point here. It’s 84° right now, which is nearly 7° warmer than normal for this time of year. That’s very unusual. You’ll be surfing in bathwater, but with the lack of swell, you’ll mostly just be floating.
Overall, the standout in this whole outlook is the morning of Thursday the 17th. It’s the cleanest window with the best combo of tiny but rideable swell from the SSE and a light cross breeze. Don’t expect much, but if you’ve got the itch, that’s your moment. The rest of the two weeks is a waiting game.
Short Range ForecastMostly dry. Warm (max 30°C on Sat afternoon, min 25°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue night. Warm (max 30°C on Sun afternoon, min 23°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | W 5 | W 5 | W 5 | W 5 | W 5 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 3 | W 3 | WNW 4 | WNW 3 | W 4 | W 4 | — | SE 3 | ESE 3 | — | SE 4 | SSE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 12 | 68 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | off | glassy | cross-off | off | off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | cross-off | cross-on | on | on | on | cross-off |
High Tide | 3:49PM0.12m | 4:28AM0.11m | 4:21PM0.11m | 4:55AM0.11m | 4:52PM0.11m | 5:20AM0.11m | 5:22PM0.10m | 5:45AM0.11m | 5:49PM0.09m | 6:08AM0.10m | 6:15PM0.08m | 6:30AM0.10m | 6:43PM0.07m | ||||||||
Low Tide | 9:53AM0.02m | 10:17PM-0.00m | 10:28AM0.02m | 10:43PM0.00m | 11:01AM0.02m | 11:08PM0.01m | 11:33AM0.02m | 11:31PM0.01m | 12:06PM0.02m | 11:56PM0.02m | 12:39PM0.03m | 00:13AM0.03m | 1:23PM0.04m | 00:30AM0.04m | |||||||
 | |  | | | | | | | |  | | | |  | |  |  | |  | | |
 | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 7:47 | — | — | 7:45 | — | — | 7:45 | — | — | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 8 | 3 | 3 | 5 |
Temp °C | 26 | 28 | 27 | 27 | 29 | 28 | 28 | 30 | 28 | 28 | 30 | 27 | 27 | 28 | 25 | 25 | 25 | 24 | 23 | 23 | 23 |
Feels °C | 28 | 29 | 29 | 29 | 31 | 30 | 31 | 32 | 29 | 29 | 29 | 26 | 27 | 24 | 24 | 26 | 24 | 25 | 21 | 22 | 25 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 5 | W 5 | W 5 | W 5 | W 4 | WNW 4 | WNW 4 | W 4 | W 4 | W 5 | W 4 | — | — | W 4 | — | — | — | — | — | SSE 7 |
| kJ | 5 | 4 | 2 | 4 | 2 | 3 | 3 | 3 | 1 | 1 | 1 | 3 | — | — | 1 | — | — | — | — | — | 68 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 3 | — | WNW 4 | WNW 4 | — | WNW 4 | WNW 3 | W 3 | WNW 4 | WNW 3 | W 4 | NNW 3 | — | SE 3 | ESE 3 | — | SE 4 | ENE 2 |
| kJ | — | — | — | 2 | — | 6 | 11 | — | 2 | 2 | 8 | 6 | 4 | 18 | 1 | — | 2 | 1 | — | 12 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1234 | 1249 | 353 | 876 | 1074 | 1028 | 955 | 2224 | 2120 | 2120 | 2213 | 2109 | 2120 | 402 | 1220 | 925 | 2251 | 679 | 962 | 2138 | 22 |
Best forecast wave conditions in Pelloponisos | |||||||||||||||||||||
Best forecast wave conditions in Greece | |||||||||||||||||||||
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Information about the Zaga (Koroni) Surf forecast
The above surf forecast table for Zaga (Koroni) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Zaga (Koroni) can be found by selecting the local surf guide option on the grey menu. Our Zaga (Koroni) 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 (Zaga (Koroni)) 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 Zaga (Koroni) 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.
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