Climate Service

Monitor climate anomalies and weather alerts from Open-Meteo

Overview

The Climate Service provides APIs for climate anomaly data sourced from Open-Meteo and ERA5 reanalysis. Track temperature and precipitation deviations from historical norms across global climate zones.

Base Path: /api/climate/v1

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ListClimateAnomalies

Retrieves temperature and precipitation anomalies from ERA5 data.

Endpoint: GET /api/climate/v1/list-climate-anomalies

Request Parameters

page_size · integer

Maximum items per page (1-100).

cursor · string

Cursor for next page.

min_severity · enum

Optional filter by anomaly severity.

Values: NORMAL, MODERATE, EXTREME

Response

anomalies · array

The list of climate anomalies.

Show ClimateAnomaly

zone · string · required

Climate zone name (e.g., “Northern Europe”, “Sahel”).

location · object

Representative location for the anomaly zone.

Show GeoCoordinates

latitude · number

Latitude coordinate.

longitude · number

Longitude coordinate.

temp_delta · number

Temperature deviation from normal in degrees Celsius.

precip_delta · number

Precipitation deviation from normal as a percentage.

severity · enum

Severity classification: NORMAL, MODERATE, or EXTREME.

type · enum

Type of climate anomaly: WARM, COLD, WET, DRY, or MIXED.

period · string · required

Time period covered (e.g., “2024-W03”, “2024-01”).

pagination · object

Pagination metadata with cursor for next page.

Example Request

curl -X GET "https://api.worldmonitor.com/api/climate/v1/list-climate-anomalies?min_severity=EXTREME&page_size=20"

Example Response

{
  "anomalies": [
    {
      "zone": "Sahel",
      "location": {
        "latitude": 15.5,
        "longitude": -4.5
      },
      "temp_delta": 3.8,
      "precip_delta": -45.2,
      "severity": "EXTREME",
      "type": "DRY",
      "period": "2024-W03"
    },
    {
      "zone": "Northern Europe",
      "location": {
        "latitude": 60.5,
        "longitude": 10.5
      },
      "temp_delta": 5.2,
      "precip_delta": 85.3,
      "severity": "EXTREME",
      "type": "MIXED",
      "period": "2024-W03"
    },
    {
      "zone": "Amazon Basin",
      "location": {
        "latitude": -3.4,
        "longitude": -62.8
      },
      "temp_delta": 2.1,
      "precip_delta": -62.5,
      "severity": "EXTREME",
      "type": "DRY",
      "period": "2024-01"
    }
  ],
  "pagination": {
    "cursor": "eyJvZmZzZXQiOjIwfQ==",
    "has_more": true
  }
}

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Anomaly Severity Levels

Normal

Within expected variation from historical norms.

Moderate

Notable deviation requiring monitoring.

Extreme

Severe deviation requiring immediate attention.

Anomaly Types

WARM

Above-normal temperatures

COLD

Below-normal temperatures

WET

Above-normal precipitation

DRY

Below-normal precipitation

MIXED

Combination of temperature and precipitation anomalies

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Data Source

Climate anomaly data is sourced from:

• Open-Meteo: High-resolution climate data API
• ERA5 Reanalysis: ECMWF’s fifth generation reanalysis dataset
• Updates hourly with new observations
• Historical baseline computed from 1991-2020 normals