Canadian humidex API

Computes the Environment Canada humidex comfort index from temperature and dew point with a discomfort band. Answers 'What is the humidex at 30C with a 22C dew point?', 'How uncomfortable is this humidity?'.

Price$0.04per request

MethodPOST

Route/v1/climate/humidex

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

humidexfeels-likecanadahumidityweatherthermal-comfortdew-pointheat

API URLhttps://x402.hexl.dev/v1/climate/humidex

Integration docs

Example request

{
  "tempC": 30,
  "dewPointC": 22
}

Example response

{
  "humidex": 39.3,
  "tempC": 30,
  "dewPointC": 22,
  "vaporPressureHpa": 26.779,
  "comfortLevel": "some discomfort",
  "interpretation": "Humidex 39 — some discomfort.",
  "formula": "Environment Canada Humidex (Masson-Beaudoin), e=6.11·exp(5417.753·(1/273.16−1/Td))"
}

Input schema

{
  "type": "object",
  "required": [
    "tempC",
    "dewPointC"
  ],
  "properties": {
    "tempC": {
      "type": "number",
      "description": "Air temperature in Celsius",
      "examples": [
        30
      ]
    },
    "dewPointC": {
      "type": "number",
      "description": "Dew point in Celsius (must be <= tempC)",
      "examples": [
        22
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}