
Surf Forecasts:
Zaga (Koroni) surf forecast from 15 Sep 2026:
- Most powerful swell: Tuesday 15 Sep, 3PM (local time) - 3ft (0.9m), 5s period, SE swell with 49 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 0.9m 5s and forecast to arrive on Tuesday (Sep 15) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Sep 19) at 6PM.
| Wave Type | Time (EEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Tue 15th Sep) | 3ft (0.9m) 5s |
Table - best surf conditions forecast for Zaga (Koroni) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s be real – this is a tough stretch for Zaga (Koroni). Over the next 16 days, we’re looking at a near-complete flat spell with barely a ripple worth paddling for.
Water temp is sitting at a very unusual 84°, which is a solid 7° warmer than normal for this time of year – that’s a real standout, but it’s not gonna help the waves show up.
Starting on Tuesday, September 15th, there’s a tiny pulse of swell from the SE, pushing maybe 1ft in the morning with a weak period of just 3 seconds. Combined energy is a paltry 2, so it’s barely a bump. Wind is a light NE cross-shore, but the surf quality is poor. That afternoon the swell bumps up a bit to 3ft from the SE, period still a short 5 seconds, energy at 49 – still weak. Light E cross-onshore wind doesn’t help. This is a beach and point setup, but with that tiny, weak swell, it’s not doing anything.
Wednesday morning the 16th has a little 0.3ft SE swell, but offshore NNW winds at 6 mph keep it clean – just nothing to ride. Wednesday afternoon goes glassy with NNW 3 mph. Same story: clean, flat.
Thursday the 17th through Monday the 21st of September is a dead zone. Zero swell, energy reading 0. Some days have clean offshore winds, but there’s absolutely no wave height. This is a long stretch of nothing.
Tuesday the 22nd teases with a 0.3ft SW swell, period 4 seconds, energy 1. Light NNW cross-offshore wind keeps it clean – again, flat. After that, we stay flat until the 25th.
Friday the 25th finally shows a tiny bump: 1ft SW swell, but period is a miserable 2 seconds, energy still at 1. Light SSW cross-shore, but that period is so short it’s just weird chop.
From the 26th through the 30th, we see more of the same – maybe a 0.3ft bump here and there, but always with combined energy readings of 1 or 0. The standout conditions are on Sunday the 28th with strong offshore NW winds at 12 mph, keeping things clean, but again, no wave height. Tuesday the 29th morning is glassy with a 0.3ft SE swell.
Honestly, Zaga rarely breaks, and this forecast is a perfect example. There’s no real surf to speak of. The only positive is the water is unusually warm, but that’s about it. If you’re desperate, the cleanest mornings with a tiny bump are the 16th, 22nd, or 29th, but don’t expect to get wet. Forecasts can change, but right now, this is a blank run that’s pretty normal for this sheltered spot.
- Rusty
Short Range ForecastModerate rain (total 13mm), heaviest on Tue afternoon. Warm (max 26°C on Thu afternoon, min 19°C on Tue afternoon). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 23°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | SE 3 | SE 5 | ENE 4 | SE 4 | SE 4 | SE 5 | SE 6 | SE 5 | W 3 | — | — | W 4 | W 5 | W 5 | W 4 | W 5 | W 5 | W 5 | WSW 5 | WSW 5 | WSW 4 |
Wave Graph | |||||||||||||||||||||
2 | 49 | 4 | 1 | 1 | 1 | 1 | 1 | 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 | cross | cross-on | off | off | glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off |
High Tide | 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 | 12:43PM0.08m | 2:17AM0.07m | 1:28PM0.09m | 2:38AM0.08m | ||||||||
Low Tide | 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 | 7:59PM0.03m | 7:15AM0.05m | 8:20PM0.02m | |||||||||
7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | |
— | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:32 | — | — | 7:30 | — | |
mm | 3 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 23 | 21 | 21 | 22 | 24 | 24 | 24 | 26 | 25 | 24 | 26 | 25 | 25 | 27 | 25 | 25 | 27 | 26 | 25 | 26 | 25 |
Feels °C | 23 | 22 | 20 | 21 | 23 | 23 | 23 | 23 | 24 | 26 | 25 | 27 | 26 | 27 | 25 | 27 | 27 | 27 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 3 | — | ESE 4 | SE 4 | SE 4 | — | SE 6 | SE 5 | W 3 | — | — | W 4 | W 5 | — | W 4 | W 5 | W 5 | W 5 | WSW 5 | WSW 5 | WSW 4 |
2 | — | 2 | 1 | 1 | — | 1 | 1 | 1 | — | — | 2 | 2 | — | 6 | 4 | 4 | 4 | 5 | 4 | 1 | |
Swell 2 Height (m) Direction Period (s) | — | — | SE 4 | E 6 | W 6 | SE 5 | NW 4 | — | — | — | — | W 5 | — | — | — | — | — | — | — | W 6 | — |
— | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | E 6 | W 5 | NW 6 | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 4 |
— | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Wind waves Height (m) Direction Period (s) | — | SE 5 | ENE 4 | — | — | — | — | — | WNW 3 | — | — | — | — | W 5 | — | — | — | — | — | — | — |
— | 49 | 4 | — | — | — | — | — | 1 | — | — | — | — | 4 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2129 | 2463 | 217 | 226 | 217 | 609 | 927 | 1399 | 1174 | 927 | 1203 | 353 | 1224 | 2148 | 1203 | 1091 | 2208 | 925 | 353 | 2207 | 353 |
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.










