Measurements
Sun
Solar radiation heats the Earth's surface and atmosphere, and is very important for determining the Earth's climate. Cloud cover and pollution affect the amount of solar radiation that reaches the ground. A pyranometer measures the amount of radiation. Sunshine duration is derived from these measurements.
Sunshine — Latest measurements
Most recent 10-minute average at Dutch KNMI weather stations and in the past 12 hours at weather station De Bilt. These measurements are unvalidated.
The Netherlands — Latest measurements
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De Bilt — Past 12 hours
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Background information and data sources
Sunshine — Daily measurements
De Bilt · February 15, 2026 – March 17, 2026
Measured daily values at the KNMI weather station De Bilt.
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Background information and data sources