Netherlands Hdd
nl-hdd:forecast:seas5Forecast SeriesClimate & Environment
Heating Degree Days — cumulative degrees below 18°C weighted by days in the month. Higher values indicate colder weather and greater heating demand. Derived from ERA5 reanalysis monthly means at one representative point per country (capital or economic center).
Representative point: Amsterdam. For large countries the economic center is used rather than the geographic centroid. Source: Copernicus Climate Data Store (ERA5 + SEAS5 seasonal forecast). License: CC BY 4.0.
Latest Value
347.8
as of Jan 1, 2027
Time Series (7 observations)
Recent Data
This is a forecast series. All values are projections.
| Date | Value | Type |
|---|---|---|
| Jan 1, 2027 | 347.8 | Forecast |
| Dec 1, 2026 | 272.2 | Forecast |
| Nov 1, 2026 | 145.8 | Forecast |
| Oct 1, 2026 | 44.9 | Forecast |
| Sep 1, 2026 | 0 | Forecast |
| Aug 1, 2026 | 0 | Forecast |
| Jul 1, 2026 | 34.1 | Forecast |
Data Source
COPERNICUS
Category
Climate & Environment→ Global Warming
Related Data
View all Netherlands data →API Access
# Fetch data by canonical code
GET /api/v1/timeseries/canonical/nl-hdd:forecast:seas5
# With date filters
GET /api/v1/timeseries/canonical/nl-hdd:forecast:seas5?start_date=2020-01-01
# Point-in-time reconstruction (Pro)
GET /api/v1/timeseries/canonical/nl-hdd:forecast:seas5?as_of=2024-01-01