Advertising is essential to maintain our free website with unique detail and accuracy At night the image is not dark as infrared radiation can detect temperature differences Meteosat satellite images for Europe are updated in real time every 5 minutes GOES 66 GOES 67 North South America and Himawari Asia images update every 65 minutes The real time satellite image combines visible light during daytime with infrared radiation during nighttime Unfortunately low clouds and fog are difficult to distinguish from ground temperatures and thus can be almost invisible during askoff.ru night