Data Sets:

Current Safecast Radiation Dataset
Complete Radiation dataset (zipped) from, updated daily. This is a large download.

Solarcast dataset (including radiation and air quality data) published to, exported every hour and available via standard S3 tools. For example with the aws cli:
aws s3 ls s3://safecastdata-us-west-2/ingest/prd/s3raw/2017-10-01/

For more information on all available data sets and formats see

Safecast Report 2016
Updated version.

Safecast Logos
For press. JPG and EPS formats.