What is the weather like in San Francisco? What clothing would be appropriate?

In this region there are 2 types of seasons: one rainy and one “dry”. In any time of year it is necessary to bring light clothing, preferably cotton, because the region is very humid and the temperatures fluctuate between 15° and 25° C, more or less. It is recommended that one wear pants (not shorts) because there is a lot of tall vegetation that provides a haven for insects.