Surf Forecasts:
Ulumitsu or Agios Dimitrios (Athens) surf forecast from 20 Sep 2026:
- Best quality surf: Sunday 27 Sep, 12AM (local time) - 3.5ft (1.1m), 6s period, S swell with cross-offshore winds.
- Most powerful swell: Saturday 26 Sep, 9PM (local time) - 6ft (1.9m), 7s period, SSW swell with 311 kJ wave energy.
- Next surfable swell (1★+): Sunday 27 Sep, 12AM (local time) - 3.5ft (1.1m), 6s period with S swell.
Best Forecast Surf Conditions for Ulumitsu or Agios Dimitrios (Athens) this week:
The surf forecast for Ulumitsu or Agios Dimitrios (Athens) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 27) at 12AM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ulumitsu or Agios Dimitrios (Athens) in the next 16 days are 1.9m 7s and forecast to arrive on Saturday (Sep 26) at 9PM. 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 4s period and expected on Sunday (Sep 20) at 3PM.
| Wave Type | Time (EEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 27th Sep) | 3.5ft (1.1m) 6s |
| Best Surf | 12AM (Sun 27th Sep) | 3.5ft (1.1m) 6s |
| Most Powerful | 9PM (Sat 26th Sep) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Ulumitsu or Agios Dimitrios (Athens) over the next 16 days.
Short Range ForecastMostly dry. Warm (max 28°C on Sun afternoon, min 22°C on Tue afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Wed afternoon, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | ||||||||||||||
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) | — | — | NE 4 | — | — | — | — | — | NE 2 | — | — | NNW 3 | ENE 3 | — | — | — | — | — | SSW 3 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | off | off | off | off | off | cross-on | on | glassy | cross-on | cross-on |
High Tide | 10:58AM0.07m | 3:06AM0.06m | 12:03PM0.07m | 2:52AM0.06m | 12:44PM0.08m | 2:54AM0.06m | 1:26PM0.08m | 3:04AM0.06m | 2:03PM0.08m | 3:18AM0.07m | 2:40PM0.08m | 3:32AM0.07m | |||||||
Low Tide | 7:24PM0.02m | 7:50PM0.02m | 6:47AM0.05m | 8:08PM0.02m | 7:28AM0.05m | 8:29PM0.02m | 8:08AM0.04m | 8:48PM0.02m | 8:46AM0.04m | 9:08PM0.02m | |||||||||
 |  |  | | | |  | | | | | | |  | | | | |  | |
 | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | 7:27 | — | 7:24 | — | — | 7:23 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 27 | 28 | 26 | 27 | 28 | 27 | 24 | 25 | 21 | 21 | 22 | 20 | 21 | 22 | 21 | 22 | 22 | 22 |
Feels °C | 24 | 23 | 23 | 24 | 25 | 27 | 27 | 19 | 21 | 20 | 18 | 17 | 17 | 20 | 19 | 19 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | ENE 3 | — | — | — | — | — | SSW 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | 2 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | — | — | — | — | — | NE 2 | — | — | NNE 2 | — | — | — | — | — | — | — |
| kJ | — | — | 9 | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1351 | 2120 | 2279 | 2205 | 2217 | 2240 | 2217 | 1036 | 336 | 304 | 215 | 2219 | 2219 | 922 | 2230 | 832 | 336 | 2240 | 334 |
Best forecast wave conditions in Aegean Sea | |||||||||||||||||||
Best forecast wave conditions in Greece | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Ulumitsu or Agios Dimitrios (Athens) Surf forecast
The above surf forecast table for Ulumitsu or Agios Dimitrios (Athens) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ulumitsu or Agios Dimitrios (Athens) can be found by selecting the local surf guide option on the grey menu. Our Ulumitsu or Agios Dimitrios (Athens) 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 (Ulumitsu or Agios Dimitrios (Athens)) 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 Ulumitsu or Agios Dimitrios (Athens) 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 Aegean Sea? If you are looking for accommodation near Ulumitsu or Agios Dimitrios (Athens), camping, hotels and holiday cottages in Aegean Sea, consider staying in Voula which is 8 km (5 miles) away. Other places in and around Aegean Sea where you can find information about places to rent, and car hire include Glyfada which is 11 km (7 miles) away, Koropi, Ellinikon and Kalamaki.
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