Convert wind direction degrees to text

[Klagio]

does this still work, or need to be changed?

[GaryK (Gary Kelley)]

Still works for me.

[cloudbr34k (Brad)]

boom just found this and works a treat!

[Bikerman (Tony Field)]

Sorry a newbie here.
Please tell me which step I am doing wrong and what I should do

1. create a helper called “sensor.wind_dir”
2. Paste the code listed above in the state template field and it objects
   Which field am I supposed to paste the code into please?

Tony

[GaryK (Gary Kelley)]

If you haven’t already, create a sensors.yaml file in your /config directory and add the following code:

- platform: template
  sensors:
    weather_wind_dir:  
      friendly_name: 'Wind Direction'
      value_template: >
        {% set direction = ['N','NNE','NE','ENE','E','ESE','SE','SSE','S','SSW','SW','WSW','W','WNW','NW','NNW','N'] %}
        {% set degree = states('sensor.wind_direction')|float %}
        {{ direction[((degree+11.25)/22.5)|int] }}

If sensors.yaml is new to your configuration, add this line to configuration.yaml:
sensor: !include sensors.yaml

You could add the sensor directly to your configuration.yaml file if you’f prefer, but the syntax would change slightly. I don’t use the helpers yet. This is working for me on HA 2024.12.0.

[Didgeridrew]

When setting this up as a Helper:

The “State Template” field only accepts Jinja templates, use

{% set direction = ['N','NNE','NE','ENE','E','ESE','SE','SSE','S','SSW','SW','WSW','W','WNW','NW','NNW','N'] %}
{% set degree = states('sensor.wind_direction')|float %}
{{ direction[((degree+11.25)/22.5)|int] }}

Make sure to use the entity ID of your sensor if it isn’t sensor.wind_direction.

Leave all the other fields empty:

[Golgothen (Paul)]

Thanks @GaryK, this was the step I was missing. Works like a bought one!

[frederickjh (Frederick Henderson)]

Hi All!
I am trying to do the same thing, convert compass degrees to compass headings, but in an automation. I am using the Flightradar24 add on. In the automation trigger.event.data.heading returns the compass degrees heading of the aircraft for a flight entry notification.

I have added the following to a variable section in the Then do section of the automation:

variables:
  direction: "{{ ['N','NNE','NE','ENE','E','ESE','SE','SSE','S','SSW','SW','WSW','W','WNW','NW','NNW','N'] }}"
  degree: "{{ states(trigger.event.data.heading) | float }}"
  compass_heading: "{{ direction[((degree+11.25)/22.5) | int] }}"
enabled: true

Using the ‘direction’ variable in my automation’s notification returns the error:

Error: Error rendering data template: AttributeError: ‘int’ object has no attribute ‘lower’

I think I am close but I do not understand the syntax for the direction variable to know what it is doing.

Thanks for any advice you can give!

[Didgeridrew]

@frederickjh

Using the ‘direction’ variable in my automation’s notification returns the error:

The variable compass_heading is what outputs the final value… direction is an list of values ordered in such a way that the math in the template for compass_heading can select the correct value via list index.

But, you also have an error. If “trigger.event.data.heading returns the compass degrees” then you need to use that on its own when defining the degree variable… the states() function expects an entity ID as it’s primary argument:

variables:
  direction: "{{ ['N','NNE','NE','ENE','E','ESE','SE','SSE','S','SSW','SW','WSW','W','WNW','NW','NNW','N'] }}"
  degree: "{{ trigger.event.data.heading | float }}"
  compass_heading: "{{ direction[((degree+11.25)/22.5) | int] }}"
enabled: true

[frederickjh (Frederick Henderson)]

Ah, yes of course I kept removing the variables and use the trigger data so my automatons would still work. Looks like I put the wrong one in, as compass_heading is the correct one.

Thanks or pointing out my mistake with the states(). I took that over from the original code in this post without thinking too much about it.

[frederickjh (Frederick Henderson)]

Thanks again! After making the changes you suggested my automation are now working with compass headings.

[schroef]

Thanks for this idea, i did bump into an issue. When the wind degrees is 360. It returns 17 as int. But this is not in the list unless we add another “N”. But thats awkward since there already 2 now

I first used this method, but it was always kind of by one direction

for (var count = 0; count < windDir.length; count++) {
    j += 22.5;
    // console.log("Count: %s - Deg: %s - Windir: %s - i: %s - j: %s",count,_Deg,windDir[count],i,j)
    // console.log("count %s",count)
    // console.log("_deg >= %s _deg < %s",i, j)
    if (_Deg >= i && _Deg < j) {
        // console.log("==== YES ====")
        // console.log("count %s",count)
        // console.log(windDir[count])
        return windDir[count];
    } else if (_Deg >= i && _Deg == j) {
        return windDir[count];
    }
    i += 22.5;
}

I use it for this simple wind check thing i made using data from OpenWeather
https://www.promotiespullen.com/windcheck