
Surf Forecasts:
Zaga (Koroni) surf forecast from 13 Sep 2026:
- Best quality surf: Thursday 17 Sep, 9PM (local time) - 3.5ft (1.1m), 7s period, SE swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 6AM (local time) - 4.5ft (1.3m), 10s period, SSW swell with 290 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 9PM (local time) - 3.5ft (1.1m), 7s period with SE swell.
Best Forecast Surf Conditions for Zaga (Koroni) this week:
The surf forecast for Zaga (Koroni) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 9PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.8m and 9s. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Zaga (Koroni) in the next 16 days are 1.3m 10s and forecast to arrive on Friday (Sep 18) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Sep 13) at 3PM.
| Wave Type | Time (EEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 17th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 9PM (Thu 17th Sep) | 3.5ft (1.1m) 7s |
| Most Powerful | 6AM (Fri 18th Sep) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Zaga (Koroni) over the next 16 days.
The Lowdown
Alright, let’s get real about the surf here. This is a rough stretch, no two ways about it.
The water is sitting at a very warm 83°F, which is a massive 7°F above the norm for this time of year. That’s weirdly warm, and it’s not helping the swell situation one bit.
We are looking at a long, dry spell. From now (September 13th) all the way through to the morning of September 18th, there is simply no surf worth paddling out for. The energy is completely flat, with the combined swell energy reading a big fat zero (0) for days on end.
Finally, on Friday morning, September 18th, we get a little pulse. Zaga (Koroni) sees a 4ft swell from the south with a 9-second period. The combined energy jumps to a moderate 382, which is something. The wind is a light northerly, blowing cross-offshore, and the wave comment says "surfable waves but very ordinary conditions." The spot is sheltered and rated as a beginner break, but it *rarely breaks*, so this is actually notable. The 4ft height is fine for a learner, but it’s not going to set the world on fire. The afternoon turns ugly with a 12 mph SSW cross-onshore wind making it choppy and messy.
After that little tease, it goes back to near nothing. The 19th drops to a tiny 0.7ft, and then from the 20th through to the 28th, it’s almost completely flat again. You might see a ripple of 0.3ft or 0.7ft here and there, but the combined energy never gets above 3. That’s weak. The winds are often clean, with some glassy mornings, but there’s no swell to work with.
Honestly, there’s no standout session here. The only window with any real waves is the morning of September 18th, and even that is "very ordinary." For a spot that rarely breaks, this is a normal, quiet run for the area. If you’re desperate, you might scratch a wave that Friday morning, but don’t get your hopes up. The setup is so small and weak for the rest of the time that a kite surfer would be bored too.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 23°C on Tue night). Winds decreasing (fresh winds from the NW on Sun afternoon, calm by Mon night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 23°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | WNW 5 | WNW 5 | WNW 5 | WNW 5 | WNW 5 | WNW 5 | NW 5 | NW 4 | SE 4 | SE 4 | SE 5 | S 7 | SE 6 | SE 6 | SW 10 | S 9 | S 8 | SSE 8 | SSE 6 | S 6 | W 5 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 4 | 48 | 15 | 53 | 70 | 216 | 275 | 140 | 32 | 4 | 1 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross | glassy | glassy | glassy | glassy | cross | cross-on | cross | glassy | cross | cross-off | cross-off | cross-on | off | cross-off | cross | off |
High Tide | 5:22PM0.10m | 5:45AM0.11m | 5:49PM0.09m | 6:08AM0.10m | 6:15PM0.08m | 6:30AM0.10m | 6:43PM0.07m | 6:54AM0.09m | 7:05PM0.06m | 7:30AM0.08m | 7:43PM0.05m | 10:59AM0.08m | 2:11AM0.07m | ||||||||
Low Tide | 11:33AM0.02m | 11:31PM0.01m | 12:06PM0.02m | 11:56PM0.02m | 12:39PM0.03m | 00:13AM0.03m | 1:23PM0.04m | 00:30AM0.04m | 2:15PM0.04m | 00:38AM0.05m | 4:13PM0.05m | 8:24PM0.05m | 7:36PM0.04m | ||||||||
7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | |
— | 7:43 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 30 | 27 | 25 | 27 | 25 | 25 | 26 | 24 | 25 | 26 | 25 | 24 | 26 | 25 | 25 | 26 | 25 | 25 | 27 | 26 |
Feels °C | 28 | 25 | 25 | 26 | 26 | 25 | 26 | 25 | 21 | 25 | 23 | 25 | 24 | 24 | 25 | 26 | 27 | 26 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | — | — | WNW 5 | WNW 5 | WNW 5 | WNW 5 | NW 5 | NW 4 | SSE 5 | SE 5 | — | S 7 | SW 8 | SW 9 | SW 10 | S 9 | S 8 | SSE 8 | WNW 5 | S 6 | W 5 |
— | — | 15 | 5 | 2 | 2 | 1 | 1 | 3 | 4 | — | 15 | 18 | 70 | 216 | 275 | 140 | 32 | 4 | 1 | 7 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 6 | — | — | — | — | S 5 | — | WSW 8 | SW 8 | SSE 7 | SE 7 | SSE 7 | — | — | SSE 6 | S 6 | — |
— | — | — | — | 1 | — | — | — | — | 1 | — | 7 | 18 | 15 | 75 | 66 | — | — | 4 | 1 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 6 | W 6 | — | — | — | — | — | — | — | — | ESE 4 | — | — | — | — | — | — |
— | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 5 | — | — | — | — | — | — | SE 4 | SE 4 | SE 5 | ESE 4 | SE 6 | SE 6 | ENE 2 | E 5 | E 7 | WNW 5 | — | W 4 | W 5 |
14 | 86 | — | — | — | — | — | — | 6 | 4 | 48 | 8 | 53 | 68 | 1 | 41 | 92 | 4 | — | 10 | 11 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 267 | 2213 | 267 | 36 | 2171 | 2120 | 2135 | 2397 | 382 | 679 | 679 | 122 | 33 | 217 | 0 | 0 | 61 | 36 | 205 | 609 | 226 |
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.










