# Rheindelta, Switzerland: what it is and when to go

> Rheindelta is a protected area in the European Union defined by the habitats directive in the river delta of the Rhine in Lake Constance, Vorarlberg, Austria in Switzerland (St. Gallen). Interests: Nature and Wildlife. The best time to visit is May to October. In June there are 15 h 44 of daylight, and in December, 8 h 15. It has articles in 2 Wikipedias, so it is not one of the busiest places in Switzerland: 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/suiza/rheindelta/
- Reviewed on: 2026-10-02
- Language: en

## In a nutshell

- **What it is:** Protected area in the European Union defined by the habitats directive in the river delta of the Rhine in Lake Constance, Vorarlberg, Austria · Nature, Wildlife
- **Where:** Switzerland
- **Best time:** May to October.
- **Nearest airport:** ZRH Zurich, 81 km as the crow flies
- **Coordinates:** 47.50328, 9.61869

## What it is and where

Rheindelta is a protected area in the European Union defined by the habitats directive in the river delta of the Rhine in Lake Constance, Vorarlberg, Austria in Switzerland (St. Gallen). It has articles in 2 Wikipedias, so it is not one of the busiest places in Switzerland: one to enjoy at a calmer pace.

It is in [St. Gallen](https://kokai.app/en/paises/europa/suiza/san-galo/), where this site lists 75 more places to see, 21 km from the centre.

Its coordinates are 47.50328, 9.61869; the nearest main airport is Zürich Airport (ZRH, Zurich), 81 km as the crow flies. How to get around Switzerland (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/suiza/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=47.503284%2C9.618689)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=47.503284%2C9.618689)

It is one of the [Nature](https://kokai.app/en/paises/europa/suiza/naturaleza/) and [Wildlife](https://kokai.app/en/paises/europa/suiza/fauna/) places in Switzerland. 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 Rheindelta is **May to October**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 8 h 39 |
| February | Possible | 10 h 01 |
| March | Possible | 11 h 35 |
| April | Possible | 13 h 23 |
| May | Best time | 14 h 54 |
| June | Best time | 15 h 44 |
| July | Best time | 15 h 24 |
| August | Best time | 14 h 04 |
| September | Best time | 12 h 19 |
| October | Best time | 10 h 35 |
| November | Possible | 9 h 02 |
| December | Possible | 8 h 15 |

In June there are 15 h 44 of daylight, and in December, 8 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.

| What you come for | Best time | Possible |
| --- | --- | --- |
| Nature | May to October | November to April |
| Wildlife | May to October | November to April |

It is not the same trip whatever you come for: Rheindelta has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to Switzerland in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/suiza/#cuando-ir).

## Before you go to Switzerland

To enter Switzerland there are 7 things to sort out before you leave, starting with “Valid Spanish ID card (DNI) or passport”: they are all, with their deadlines, in [the Switzerland checklist](https://kokai.app/en/paises/europa/suiza/#antes-de-salir). Currency: Swiss franc (CHF); plugs: Type J · 230 V · 50 Hz (the European type C fits; the three-pin Schuko doesn't); emergencies: 112 · 117 police · 144 ambulance · 1414 air rescue (Rega).

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

- [E4 European long distance path](https://kokai.app/en/paises/europa/suiza/e4-e5-europaischer-fernwanderweg-rhein-bis-grenze-d/): Walking path · 4.4 km
- [Bodenseeweg](https://kokai.app/en/paises/europa/suiza/bodenseeweg/): Hiking · 4.4 km
- [St. Theresia Catholic Church](https://kokai.app/en/paises/europa/suiza/katholische-kirche-st-theresia/): Church building with dome in Rheineck in the canton of St. Gallen, Switzerland · 4.5 km
- [Fliegermuseum Altenrhein](https://kokai.app/en/paises/europa/suiza/ffa-museum-fliegermuseum-fahrzeugmuseum-altenrhein/): Museum in Thal (Switzerland) · 5.0 km
- [Schloss Weinberg](https://kokai.app/en/paises/europa/suiza/schloss-weinberg/): Castle · 5.4 km

Distances are as the crow flies. Everything else is in [the Switzerland guide](https://kokai.app/en/paises/europa/suiza/).

## More in Switzerland: Nature

- [Matterhorn](https://kokai.app/en/paises/europa/suiza/cervino/): mountain in the Pennine Alps on the border between Switzerland and Italy
- [Eiger](https://kokai.app/en/paises/europa/suiza/eiger/): mountain in the Bernese Alps, Switzerland
- [Jungfrau](https://kokai.app/en/paises/europa/suiza/jungfrau/): one of the main summits of the Bernese Alps in Switzerland (4,158m / 13,642 ft)
- [Aletsch Glacier](https://kokai.app/en/paises/europa/suiza/aletsch-glacier/): glacier in Switzerland
- [Dufourspitze](https://kokai.app/en/paises/europa/suiza/monte-rosa/): highest mountain of Switzerland
- [Rhine Falls](https://kokai.app/en/paises/europa/suiza/cataratas-del-rin/): waterfall on the Rhein River in Switzerland

Every Switzerland place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/europa/suiza/naturaleza/).

## Frequently asked questions

### What is Rheindelta?

It is a protected area in the European Union defined by the habitats directive in the river delta of the Rhine in Lake Constance, Vorarlberg, Austria in Switzerland. It has articles in 2 Wikipedias, so it is not one of the busiest places in Switzerland: one to enjoy at a calmer pace.

### When is the best time to visit Rheindelta?

May to October. In June there are 15 h 44 of daylight, and in December, 8 h 15.

### How do you get to Rheindelta?

The nearest main airport is Zürich Airport (ZRH), 81 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=47.503284%2C9.618689) opens the route on the map, and how to get around Switzerland is explained in [its country guide](https://kokai.app/en/paises/europa/suiza/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the Switzerland 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 [E4 European long distance path](https://kokai.app/en/paises/europa/suiza/e4-e5-europaischer-fernwanderweg-rhein-bis-grenze-d/), [Bodenseeweg](https://kokai.app/en/paises/europa/suiza/bodenseeweg/), [St. Theresia Catholic Church](https://kokai.app/en/paises/europa/suiza/katholische-kirche-st-theresia/). The rest is in [the Switzerland guide](https://kokai.app/en/paises/europa/suiza/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/189718476), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q101135539), CC0. More about Rheindelta on [Wikipedia](https://de.wikipedia.org/wiki/Europaschutzgebiet_Rheindelta). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).