1km Mesh Dryness Index
GET
/api/v1/dry
Get dryness index for specified latitude and longitude coordinates, calculated with 1km grid resolution. The specified latitude and longitude must be within Japan. The dryness index includes hourly information for 72 hours. The dryness index is provided year-round (valid period: mid-September to late February).
Index Codes
| Code | Description |
|---|---|
| 1 | Moist / Low Dryness |
| 2 | Slightly Dry / Slightly Low Dryness |
| 3 | Dry / Average |
| 4 | Very Dry / Slightly High Dryness |
| 5 | Very Dry / Very High Dryness |
Update Times
- 2:50 AM
- 5:20 AM
- 11:30 AM
- 3:20 PM
- 10:10 PM
Note: Manual updates may occur at times other than the above.
Parameters
Query Parameters
lat*
Latitude
Typenumber
RequiredExample
35.651377format
floatlon*
Longitude
Typenumber
RequiredExample
140.041161format
floatResponses
1km grid-based dryness index data
application/json
JSON
{
"requestId": "3909775c-5d0f-4e96-8e4f-7d3f263e2056",
"wxdata": [
{
"lat": 35.651377,
"lon": 140.041161,
"data": [
{
"date": "2025-04-09T10:00:00+09:00",
"dryidx": 1
}
]
}
]
}