Last updated: 3 August 2026
1. Data controller
Data controller: José Martínez Rey, owner of Enigmas Nómadas
Email: enigmasnomadas@gmail.com
Website: https://enigmasnomadas.com
This privacy policy applies to the Android application Marea y Clima, identified by the package name:
com.enigmasnomadas.mareayclima
2. Purpose of the application
Marea y Clima provides weather and marine information, forecasts, wind, tides, sea conditions, ultraviolet index, Sun and Moon data, and configurable alerts.
The application uses only the data required to provide these features.
3. Accounts and personal information
Marea y Clima does not require users to create an account or sign in.
The application does not directly request:
- first and last name;
- email address;
- telephone number;
- postal address;
- date of birth;
- passwords;
- contacts;
- messages;
- personal photographs, videos or files;
- financial information;
- health information;
- advertising identifiers;
- permanent device identifiers.
The application does not contain user profiles, subscriptions, in-app purchases or authentication systems.
4. Device location
Marea y Clima may request optional access to the device’s approximate and precise location when the user selects My location.
Location is used to:
- identify the current town or area;
- select nearby beaches and ports;
- obtain weather information for the location;
- obtain marine and tide information;
- improve the selection of the geographical point and altitude;
- calculate Sun and Moon data;
- configure alerts for the selected destination.
Precise location helps distinguish nearby towns, beaches and ports correctly and improves the matching of altitude and weather data.
Location use is optional. Users can search for and manually select a town or beach without using the device’s location.
The application does not request permanent or background location permission, does not perform continuous tracking, and does not obtain new GPS positions while the user is not using the relevant feature.
5. Stored coordinates and alerts
When the user selects a destination, Marea y Clima may store locally:
- the destination name;
- its coordinates;
- its time zone;
- the related beach or port;
- alert preferences;
- the last selected destination;
- favourite destinations.
Although the application does not query GPS again in the background, it may use previously stored coordinates to update the information required for weather, marine or tide alerts configured by the user.
6. External services
To provide its features, Marea y Clima accesses external services through encrypted HTTPS connections.
Open-Meteo Weather
The application may send the following to Open-Meteo:
- latitude and longitude;
- time zone;
- forecast period;
- requested weather variables.
The service returns weather information such as temperature, humidity, precipitation, wind, atmospheric pressure, ultraviolet index, and hourly and daily forecasts.
Open-Meteo Marine
The application may send the coordinates of a beach or marine point to obtain information such as:
- wave height;
- swell period;
- swell direction;
- hourly changes in sea conditions.
Open-Meteo Geocoding
When the user manually searches for a town, the text entered may be sent to Open-Meteo’s geographical search service.
This service may return:
- matching towns;
- coordinates;
- region and country;
- elevation;
- time zone.
Instituto Hidrográfico de la Marina
To obtain tide predictions, the application may send the following to the service of the Instituto Hidrográfico de la Marina:
- the public identifier of the selected port;
- the date or month requested;
- the request type and format.
The user’s coordinates are not included directly in these requests. The nearest port is selected within the application.
Android geocoding service
The application may use the geocoding service provided by Android or by the device manufacturer to convert coordinates into town, province, region or country names.
The specific provider of this service may vary depending on the device, Android version and system configuration.
When connecting to these services, their servers technically receive the IP address required to establish communication.
7. Purposes of processing
Information processed by Marea y Clima is used exclusively to:
- display current weather;
- provide weather forecasts;
- display wind data;
- provide marine information;
- provide tide predictions;
- select nearby beaches and ports;
- calculate Sun and Moon information;
- display the ultraviolet index;
- configure local alerts and notifications;
- improve the technical operation of the application.
Data is not used for advertising, commercial tracking, advertising profiling or the sale of personal information.
8. Local storage
Marea y Clima stores certain data within Android’s private storage, including:
- the last selected town, beach or destination;
- coordinates and time zone;
- favourite and recent destinations;
- cached weather and marine data;
- tide predictions;
- notification preferences;
- quiet hours;
- technical history used to prevent duplicate alerts;
- local diagnostic logs.
This data is not synchronised with an Enigmas Nómadas-owned server.
Caches are used to improve operation, reduce unnecessary requests and temporarily allow access to previously downloaded information.
9. Diagnostic logs
The application may keep a limited local technical log to help diagnose errors.
This log may include:
- the selected destination;
- coordinates;
- time zone;
- tide port;
- alert preferences;
- dates and times;
- error messages and technical data.
Logs are not automatically sent to Enigmas Nómadas or to an external analytics platform.
They can be deleted using the relevant function in the application, by clearing its data in Android settings, or by uninstalling it.
10. Notifications
Notifications are optional and are generated locally on the device.
Marea y Clima does not use Firebase Cloud Messaging, push notification tokens or its own server to send alerts.
When updated information is required, the application queries weather or marine sources and decides locally whether to display a notification.
Users can disable notifications within the application or in Android settings.
11. Advertising, analytics and tracking
Marea y Clima:
- contains no advertising;
- does not use Google Analytics;
- does not use Firebase Analytics;
- does not use Firebase Crashlytics;
- does not use Sentry;
- does not use advertising SDKs;
- does not use advertising identifiers;
- does not track users across applications;
- does not maintain remote user telemetry;
- does not sell personal data.
12. Security
Identified production communications use encrypted HTTPS/TLS connections.
Local data is stored within the private space assigned to the application by Android and is subject to the security, locking and encryption measures configured on the device.
Nevertheless, no computer system can guarantee absolute security.
13. Android backups and transfers
Marea y Clima excludes the local database, preferences, coordinates, destinations, favourites, caches, technical histories and diagnostic logs from backups and transfers between devices. After reinstalling the application or changing device, users will need to configure these items again.
14. Retention and deletion
Data is stored mainly on the device for as long as necessary to provide the selected features.
Users can delete information by:
- removing favourite destinations;
- deleting diagnostic logs;
- clearing Marea y Clima data in Android settings;
- uninstalling the application.
Clearing the data or uninstalling the application deletes the local database, preferences, destinations, caches and logs stored by the application on that device.
Marea y Clima does not allow account creation, and Enigmas Nómadas does not maintain a remote user database associated with the application.
15. Permissions used
Marea y Clima may request the following permissions:
Approximate and precise location
Used to identify the town, improve altitude, and locate beaches, ports and conditions corresponding to the user’s location.
Notifications
Used to display weather, marine and tide alerts configured by the user.
Internet access
Used to access weather, marine and tide sources.
Start after device restart
Used to reschedule alerts locally after the phone is restarted.
Users can change or revoke permissions under:
Android Settings → Apps → Marea y Clima → Permissions
Withdrawing a permission may prevent features that depend on it from working, but the rest of the application may continue to be used where technically possible.
16. Children
Marea y Clima is not designed specifically for children and does not contain:
- child profiles;
- user accounts;
- chat;
- messaging;
- social networks;
- user-generated content.
The application provides general weather information and advisory recommendations concerning ultraviolet index, sun protection and bathing conditions.
It does not provide medical services or diagnoses.
17. Informational nature of the data
Information provided by Marea y Clima may contain errors, delays, temporary gaps in coverage or differences from actual conditions.
Marea y Clima does not replace:
- emergency alerts;
- Civil Protection information;
- alerts from official bodies;
- instructions from maritime authorities;
- direct observation of conditions;
- professional advice.
Before taking part in marine, sporting or outdoor activities, users should consult official sources and take appropriate precautions.
18. Changes to this policy
This policy may be updated to reflect:
- new application features;
- new information sources;
- changes in data processing;
- legal changes;
- new Google Play requirements.
When material changes are made, the date at the beginning of the policy will be updated.
19. Contact
For any questions about this privacy policy or the processing of data in Marea y Clima:
José Martínez Rey – Enigmas Nómadas
Email: enigmasnomadas@gmail.com
Website: https://enigmasnomadas.com
The previous address remains available to preserve compatibility with published versions of the application. https://enigmasnomadas.com/politica-de-privacidad-de-marea-y-clima/