English: Global average sea surface temperatures (SST) are plotted with sunspot numbers, for possible sun-climate connections.

Solar variability is greater in UV than in TSI terms.

Prior history (such as the Maunder Minimum) suggests possible correlation of fewer sunspots with colder temperatures, as well as conversely more sunspots with higher temperatures. (Though sunspots themselves are darker, they form when there are particularly magnetically active regions, which is when larger, brighter, longer-duration Faculae are more common as well).