Abstract

KNMI collects meteorological surface observations from automatic weather stations (in-situ) situated in the Netherlands and BES islands. The network consists of sea and land-based locations, including wind poles and sites at airports. The weather stations report every 10 minutes meteorological variables such as temperature, relative humidity, wind, air pressure, visibility, precipitation and cloud cover. The 10 minute observations are aggregated to hourly values once per day.

The number of available variables differs per station. The data for the hourly intervals is validated by KNMI experts, filling gaps and correcting measurement errors, after which it becomes available. The expert validation can take up to several days to complete. The file contains a timestamp denoting the end of the observation interval in UTC.


Metadata

Dataset name hourly-in-situ-meteorological-observations-validated
Dataset version 1.0
Status onGoing
Last metadata update June 6, 2025, 11:19 (UTC)
Update frequency continual
License https://creativecommons.org/licenses/by/4.0/
North bound latitude 55.7
East bound longitude 7.4
South bound latitude 12
West bound longitude -68.5
Dataset edition 1
Dataset manager Klimaat Team
Maintainer KNMI Data Services
Publication timestamp 2025-05-05T00:00:00Z
Reference system identifier EPSG4326
Dataset start time 1951-01-01
Dataset end time Unlimited
Identifier urn:xkdc:ds:nl.knmi::hourly-in-situ-meteorological-observations-validated/1/
Lineage statement KNMI Robuust Klimatologisch Informatie Systeem (RobuKIS)
Use limitation No use limitations
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