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Ulumitsu or Agios Dimitrios (Athens) Surf Forecast
/ Aegean Sea (34 surf breaks) /
Surf Forecasts:
Ulumitsu or Agios Dimitrios (Athens) surfForecast / Aegean Sea / Greece
12 Day Weather and Surf, issued 7 pm Friday 19 Dec 2025 EETForecast update in hr min s Forecast update imminent
Ulumitsu or Agios Dimitrios (Athens) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ulumitsu or Agios Dimitrios (Athens) sea temperature is
18.9° C
(Which is 2.4°C warmer than normal for this time of year)Best Forecast Surf Conditions for Ulumitsu or Agios Dimitrios (Athens) this week:
The surf forecast for Ulumitsu or Agios Dimitrios (Athens) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 25) at 8PM. The primary swell is predicted to be 1.7m and 6s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ulumitsu or Agios Dimitrios (Athens) in the next 12 days are 2.0m 7s and forecast to arrive on Friday (Dec 26) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Saturday (Dec 20) at 2PM.
| Wave Type | Time (EET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 25th Dec) | 5.5ft (1.7m) 6s |
| Best Surf | 8PM (Thu 25th Dec) | 5.5ft (1.7m) 6s |
| Most Powerful | 5AM (Fri 26th Dec) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for Ulumitsu or Agios Dimitrios (Athens) over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Some drizzle, heaviest during Sat night. Very mild (max 15°C on Sat afternoon, min 12°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Thu morning. Very mild (max 17°C on Wed morning, min 12°C on Mon night). Winds increasing (light winds from the SE on Tue afternoon, fresh winds from the SSW by Wed afternoon). | |||||||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Fri 26 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | — | — | — | — | — | — | — | — | — | — | — | |||||||||||
| Period(s) (?) | - | - | 2 | - | - | - | - | - | - | - | - | - | 6 | 6 | 6 | 5 | 5 | 6 | 6 | 7 | 6 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 173 | 170 | 58 | 33 | 57 | 119 | 229 | 307 | 123 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross- off | off | off | off | off | off | off | cross | on | on | on | on | on | on | off | off | glass | |
High Tide / height (m) | 2:00AM 0.09 | 5:08PM 2:29AM 0.05 0.09 | 6:00PM 3:01AM 0.05 0.09 | 3:27AM 0.09 | 3:57AM 0.09 | 4:25AM 0.08 | 9:43PM 4:51AM 0.06 0.07 | |||||||||||||||
Low Tide / height (m) | 10:01AM 0.01 | 7:09PM 0.05 | 10:31AM 0.01 | 7:22PM 0.05 | 11:06AM 0.01 | 11:44AM 0.01 | 12:13PM 0.01 | 12:45PM 0.01 | 11:11PM 0.06 | 1:20PM 0.02 | ||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Fri 26 | ||||||||||||||||
| Sunrise | - | 7:35 | - | - | 7:35 | - | - | 7:35 | - | - | 7:35 | - | - | 7:37 | - | - | 7:37 | - | - | 7:37 | - | |
| Sunset | - | - | 5:07 | - | - | 5:07 | - | - | 5:08 | - | - | 5:08 | - | - | 5:09 | - | - | 5:09 | - | - | 5:10 | |
 |  | |  |  |  | | | |  | | | |  | | |  |  | | | | ||
Rain (mm) | - | - | - | 1 | - | - | - | - | - | - | - | - | 5 | 2 | 2 | 3 | 7 | 5 | - | - | - | |
| Temp. °C | 14 | 13 | 15 | 14 | 14 | 15 | 14 | 14 | 15 | 13 | 13 | 15 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 14 | 15 | |
| Feels °C (?) | 12 | 11 | 13 | 11 | 11 | 12 | 11 | 9 | 10 | 8 | 11 | 12 | 11 | 11 | 10 | 10 | 11 | 12 | 15 | 13 | 14 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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 12 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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