# Castle of Seda, Portugal: what it is and when to go > Castle of Seda is a building in Alter do Chãeso, Portalegre District, Portugal. Interests: History. The best time to visit is March to October. In June there are 14 h 45 of daylight, and in December, 9 h 15. It has articles in 3 Wikipedias, so it is not one of the busiest places in Portugal: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip. - Address: https://kokai.app/en/paises/europa/portugal/castelo-de-seda/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Building in Alter do Chãeso, Portalegre District, Portugal · History - **Where:** Portugal - **Best time:** March to October. - **Nearest airport:** LIS Lisbon, 125 km as the crow flies - **Protection:** Protected heritage - **Coordinates:** 39.19345, -7.78735 ## What it is and where Castle of Seda is a building in Alter do Chãeso, Portalegre District, Portugal. It has articles in 3 Wikipedias, so it is not one of the busiest places in Portugal: one to enjoy at a calmer pace. Its coordinates are 39.19345, -7.78735; the nearest main airport is Lisbon Humberto Delgado Airport (LIS, Lisbon), 125 km as the crow flies. How to get around Portugal (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/portugal/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=39.19345%2C-7.787354) - [Directions](https://www.google.com/maps/dir/?api=1&destination=39.19345%2C-7.787354) - **Protection:** Protected heritage It is one of the [History](https://kokai.app/en/paises/europa/portugal/historia/) places in Portugal. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap. ## When to go The best time to visit Castle of Seda is **March to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 32 | | February | Possible | 10 h 31 | | March | Best time | 11 h 42 | | April | Best time | 13 h 02 | | May | Best time | 14 h 09 | | June | Best time | 14 h 45 | | July | Best time | 14 h 30 | | August | Best time | 13 h 32 | | September | Best time | 12 h 14 | | October | Best time | 10 h 57 | | November | Possible | 9 h 48 | | December | Possible | 9 h 15 | In June there are 14 h 45 of daylight, and in December, 9 h 15. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather. When to go to Portugal in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/portugal/#cuando-ir). ## Before you go to Portugal To enter Portugal there are 6 things to sort out before you leave, starting with “Valid ID card (DNI) or passport”: they are all, with their deadlines, in [the Portugal checklist](https://kokai.app/en/paises/europa/portugal/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and F · 230 V · 50 Hz (the same as in Spain); emergencies: 112. In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it. ## What is nearby - [Roman Bridge of Vila Formosa](https://kokai.app/en/paises/europa/portugal/ponte-de-vila-formosa/): Bridge in Portugal · 2.5 km - [Mercado Municipal de Alter do Chão](https://kokai.app/en/paises/europa/portugal/mercado-municipal-de-alter-do-chao/): Market · 11 km - [Castle of Alter do Chão](https://kokai.app/en/paises/europa/portugal/castelo-de-alter-do-chao/): Building in Alter do Chão, Portalegre District, Portugal · 11 km - [Fundação Abreu Callado](https://kokai.app/en/paises/europa/portugal/fundacao-abreu-callado/): Winery · 12 km - [Anta do Tapadão (Aldeia da Mata)](https://kokai.app/en/paises/europa/portugal/anta-da-aldeia-da-mata/): Dolmen in Crato, Portugal · 14 km Distances are as the crow flies. Everything else is in [the Portugal guide](https://kokai.app/en/paises/europa/portugal/). ## More in Portugal: History - [University of Coimbra](https://kokai.app/en/paises/europa/portugal/universidade-de-coimbra/): public university in Coimbra, Portugal - [Belém Tower](https://kokai.app/en/paises/europa/portugal/torre-de-belem/): fortified tower located in the civil parish of Santa Maria de Belém in the municipality of Lisbon, Portugal - [Jerónimos Monastery](https://kokai.app/en/paises/europa/portugal/monasterio-de-los-jeronimos/): building in Santa Maria de Belém, Lisbon District, Portugal - [Mafra, Portugal](https://kokai.app/en/paises/europa/portugal/palacio-nacional-de-mafra/) - [Estádio do Dragão](https://kokai.app/en/paises/europa/portugal/estadio-del-dragon/): football stadium in Porto, Portugal - [Batalha Monastery](https://kokai.app/en/paises/europa/portugal/monasterio-de-batalha/): building in Batalha, Leiria District, Portugal Every Portugal place under History, each with its season, is on [its page](https://kokai.app/en/paises/europa/portugal/historia/). ## Frequently asked questions ### What is Castle of Seda? It is a building in Alter do Chãeso, Portalegre District, Portugal. It has articles in 3 Wikipedias, so it is not one of the busiest places in Portugal: one to enjoy at a calmer pace. ### When is the best time to visit Castle of Seda? March to October. In June there are 14 h 45 of daylight, and in December, 9 h 15. ### How do you get to Castle of Seda? The nearest main airport is Lisbon Humberto Delgado Airport (LIS), 125 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=39.19345%2C-7.787354) opens the route on the map, and how to get around Portugal is explained in [its country guide](https://kokai.app/en/paises/europa/portugal/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Portugal map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby. ### What else is around here? Nearby you have [Roman Bridge of Vila Formosa](https://kokai.app/en/paises/europa/portugal/ponte-de-vila-formosa/), [Mercado Municipal de Alter do Chão](https://kokai.app/en/paises/europa/portugal/mercado-municipal-de-alter-do-chao/), [Castle of Alter do Chão](https://kokai.app/en/paises/europa/portugal/castelo-de-alter-do-chao/). The rest is in [the Portugal guide](https://kokai.app/en/paises/europa/portugal/). Data from [OpenStreetMap](https://www.openstreetmap.org/way/683570217), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q5049826), CC0. More about Castle of Seda on [Wikipedia](https://es.wikipedia.org/wiki/Castillo_de_Seda). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).