POSEIDON System Weather

Installs

298.2k

Rating

4.3

Rating count

< 1k

Category	Weather
Developer	ΕΛΛΗΝΙΚΟ ΚΕΝΤΡΟ ΘΑΛΑΣΣΙΩΝ ΕΡΕΥΝΩΝ (Hellenic Centre for Marine Research)
Price	Free
First release	4/16/2021 (5 years ago)
Version	1.1.8
In-app purchases	No
Contains ads	No
Content rating	USK: All ages
Package name	gr.hcmr.poseidon.twa

View on Play Store

Core Metrics

Data Breakdown

Date	Rating Count	Average Rating	Installs	Version
10/15/2025	675	4.273	298,234	1.1.8
10/13/2025	674	4.273	297,991	1.1.8
10/12/2025	674	4.167	297,991	1.1.8
10/11/2025	673	4.167	297,726	1.1.8
10/10/2025	673	4.167	296,998	1.1.8
10/9/2025	670	4.273	296,998	1.1.8
10/8/2025	670	4.273	296,493	1.1.8
10/7/2025	670	4.273	295,737	1.1.8
10/6/2025	670	4.273	295,532	1.1.8
10/5/2025	670	4.273	295,292	1.1.8
10/4/2025	670	4.444	294,879	1.1.8
10/3/2025	668	4.273	294,438	1.1.8
10/2/2025	667	4.273	294,123	1.1.8
10/1/2025	667	4.273	293,874	1.1.8
9/29/2025	667	4.273	293,241	1.1.8
9/28/2025	667	4.273	292,890	1.1.8
9/27/2025	666	4.273	292,670	1.1.8
9/26/2025	666	4.273	292,670	1.1.8
9/25/2025	665	4.273	292,396	1.1.8
9/22/2025	664	4.273	291,997	1.1.8
9/21/2025	664	4.273	291,997	1.1.8
9/20/2025	663	4.273	291,789	1.1.8
9/19/2025	663	4.273	291,493	1.1.8
9/18/2025	662	4.167	291,493	1.1.8
9/17/2025	662	4.167	291,493	1.1.8
9/10/2025	661	4.444	290,675	1.1.8
9/9/2025	661	4.444	290,584	1.1.8
9/8/2025	0	0.000	290,478	1.1.8
9/7/2025	661	4.167	290,478	1.1.8
9/6/2025	661	4.167	290,307	1.1.8
9/5/2025	661	4.167	290,067	1.1.8
9/3/2025	661	4.167	289,835	1.1.8
9/2/2025	661	4.167	289,757	1.1.8
9/1/2025	661	4.167	289,757	1.1.8
8/31/2025	661	4.167	289,648	1.1.8
8/30/2025	661	4.167	289,473	1.1.8
8/29/2025	661	4.167	289,268	1.1.8
8/28/2025	661	4.167	289,173	1.1.8
8/27/2025	661	4.167	289,053	1.1.8
8/26/2025	661	4.167	288,907	1.1.8
8/25/2025	661	4.167	288,907	1.1.8
8/24/2025	661	4.167	288,692	1.1.8
8/23/2025	661	4.167	288,692	1.1.8
8/22/2025	661	4.167	288,465	1.1.8
8/21/2025	660	4.167	288,465	1.1.8
8/19/2025	658	4.167	288,097	1.1.8
8/18/2025	658	4.167	287,908	1.1.8
8/17/2025	658	4.167	287,780	1.1.8
8/16/2025	656	4.167	287,613	1.1.8
8/15/2025	656	4.167	287,486	1.1.8
8/14/2025	656	4.167	287,348	1.1.8
8/13/2025	656	4.167	287,207	1.1.8
8/12/2025	656	4.167	287,207	1.1.8
8/11/2025	656	4.167	286,924	1.1.8
8/10/2025	655	4.167	286,924	1.1.8
8/9/2025	655	4.167	286,710	1.1.8
8/8/2025	655	4.167	286,441	1.1.8
7/20/2025	652	4.167	283,868	1.1.8
7/19/2025	652	4.167	283,756	1.1.8
7/18/2025	652	4.167	283,594	1.1.8
7/17/2025	652	4.167	283,594	1.1.8
7/16/2025	652	4.167	283,374	1.1.8
7/15/2025	652	4.167	283,374	1.1.8
7/14/2025	650	4.091	283,183	1.1.8
7/13/2025	649	4.091	283,183	1.1.8
7/12/2025	649	4.091	283,104	1.1.8
7/11/2025	648	4.091	282,998	1.1.8
7/10/2025	648	4.091	282,900	1.1.8
7/9/2025	647	4.091	282,706	1.1.8
7/6/2025	0	0.000	282,461	1.1.8
7/5/2025	647	4.091	282,347	1.1.8
7/4/2025	645	4.091	282,347	1.1.8
7/3/2025	645	4.091	282,143	1.1.8
7/2/2025	644	4.091	282,143	1.1.8
7/1/2025	645	4.091	281,921	1.1.8
6/30/2025	643	4.091	281,921	1.1.8
6/16/2025	637	4.091	280,385	1.1.8
6/15/2025	637	4.091	280,311	1.1.8
6/14/2025	637	4.091	280,126	1.1.8
6/13/2025	637	4.091	280,064	1.1.8
6/9/2025	637	4.091	279,924	1.1.8
6/8/2025	0	0.000	279,784	1.1.8
5/29/2025	638	4.091	279,692	N/A
5/28/2025	635	4.111	278,565	N/A
5/27/2025	634	4.111	278,489	N/A
5/24/2025	634	4.111	278,017	N/A

Details

POSEIDON System app provides easy access to the updated view of the meteorological, wave, hydrodynamic and ecosystem forecasts provided in POSEIDON System official website poseidon.hcmr.gr. The forecasts are updated daily covering the next five days.

Meteo Forecast:
Spatial coverage: mid and South Europe, Mediterranean Sea and North Africa
• Surface wind (10m)
• Rainfall
• Air Temperature (2m)
• Cloudiness
• Snowfall
• Dust
• Atmospheric Pressure
Waves Forecast:
Spatial coverage: Mediterranean Sea, Sea of Marmara and Black Sea
• Significant Wave Height & Direction (WW3 model)
• Significant Wave Height & Direction (WAM model)
Sea Level Forecast:
Spatial coverage: Mediterranean Sea
• Total Elevation
• Tidal Elevation
• Surge Elevation
Hydrodynamics Forecast:
Spatial coverage: Mediterranean Sea
• Sea Surface Temperature
• Sea Surface Salinity
• Surface (5m) Circulation
Ecosystem Forecast: 
Spatial coverage: Mediterranean Sea
• Chlorophyll-a (0-10m average)
• Nitrates (Surface)
• Ammonium (Surface)
• Phosphates (Surface)
• Bacteria Biomass (Surface)
• Mesozooplankton (Surface)
• Phytoplankton Biomass (Surface)
• Primary Production (Surface)
• Bacterial Production (Surface)
• Primary Production (200m Integrated)
• Bacterial Production (200m Integrated)

Color bar: click on the color bar to change units for surface wind (kt, m/s, bft), air temperature (°C, °F) and sea surface circulation (kt, m/s) 
Flow Animation: streamlines presenting the flow of the wind, the waves or the sea currents depending on the selected model
Isobars: Add the isobars layer on top of the selected forecast with option under menu
Interactive map: Zoom in and out and move the map to any area of interest. 
Point of interest: Clicking on any point on the area covered by the forecasting model, will provide a quick view of the forecast value on the selected point. Clicking on the orange arrow on the tip, will open a summary of the forecast for the whole forecasting period for this point.
City labels: Clicking on city labels, opens a summary of the forecast for the whole forecasting period for the specific city.
User location: If location trace is permitted, select on location pin on the right side of the screen to view forecast on your current location. 
Date time section: Select a specific date time within the forecasting period or animate the forecasts automatically by clicking on the play button next to the time selector.
Help guide: Press the exclamation mark on the right of the screen to open the short guide.

UTC and local time options. English and Greek languages. 
Vertical and Horizontal view enabled.
No advertisements.

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