Surf Forecasts:
Zaga (Koroni) surf forecast from 20 Aug 2026:
Best Forecast Surf Conditions for Zaga (Koroni) this week:
The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Aug 22) at 6PM.
The Lowdown
Alright, crew, Rusty here. Let’s cut to the chase – the long-range looks bleak. Over the next 16 days, there’s absolutely no surf to speak of.
For Zaga (Koroni), the combined energy of all swells directed here reads zero (0) for the whole period. Nada. The water is a balmy 83°, which is 4° warmer than usual for this time of year – that’s very unusual – but it’s not going to do you any good without waves.
We’re looking at a 16-day flat spell from Thursday, August 20th, all the way to Friday, September 4th. The wind will be clean and glassy on many mornings, but with no swell, it’s just a calm, pretty lake. This spot is a sheltered beach and point that’s good for beginners when it works, but it rarely breaks, and this run of nothing is pretty typical for the area.
Don’t get too down – these things break, but for now, it’s a total write-off. Hang tight.
Rusty.
Short Range ForecastMostly dry. Warm (max 32°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Mon afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 6 | — | WNW 3 | WNW 4 | WNW 4 | WNW 5 | WNW 4 | WNW 4 | WNW 5 | W 5 | WNW 4 | WNW 5 | W 5 | WNW 5 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | W 4 | NW 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | off | off | cross-off | off | off | cross-off | off | off | cross | off | glassy | cross-off | off | glassy | cross | off | glassy | cross | off |
High Tide | 9:20AM0.08m | 1:06AM0.05m | 11:58AM0.08m | 2:17AM0.06m | 1:10PM0.09m | 2:44AM0.07m | 1:59PM0.10m | 3:08AM0.08m | 2:30PM0.10m | 3:27AM0.08m | 3:00PM0.11m | 3:50AM0.09m | 3:28PM0.11m | 4:13AM0.09m | |||||||
Low Tide | 5:33PM0.05m | 2:59AM0.05m | 8:18PM0.04m | 8:38PM0.03m | 7:26AM0.05m | 9:02PM0.02m | 8:12AM0.05m | 9:24PM0.02m | 8:51AM0.04m | 9:44PM0.01m | 9:20AM0.03m | 10:07PM0.01m | |||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 8:16 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — | — | 8:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 28 | 28 | 31 | 28 | 31 | 32 | 28 | 29 | 30 | 29 | 31 | 32 | 29 | 30 | 31 | 29 | 29 | 29 | 28 |
Feels °C | 29 | 29 | 29 | 29 | 31 | 28 | 31 | 32 | 29 | 31 | 32 | 32 | 33 | 32 | 32 | 31 | 33 | 32 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 6 | — | WNW 3 | WNW 4 | — | WNW 5 | — | W 4 | W 5 | W 5 | W 4 | WNW 5 | W 5 | WNW 5 | WNW 4 | — | WNW 4 | WNW 4 | — | W 3 |
| kJ | 2 | 3 | — | 1 | 1 | — | 7 | — | 6 | 16 | 11 | 6 | 9 | 5 | 4 | 4 | — | 3 | 4 | — | 1 |
Swell 2 Height (m) Direction Period (s) | W 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | WNW 4 | WNW 5 | WNW 4 | WNW 4 | WNW 5 | — | WNW 4 | WNW 5 | W 5 | — | — | WNW 4 | — | — | W 4 | NW 3 |
| kJ | — | — | — | — | — | 11 | 19 | 31 | 20 | 38 | — | 10 | 20 | 12 | — | — | 5 | — | — | 7 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1239 | 2189 | 991 | 1210 | 1034 | 1074 | 993 | 1382 | 1199 | 1220 | 2321 | 364 | 2218 | 2252 | 364 | 1715 | 2124 | 2120 | 2120 | 2130 | 1719 |
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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