San Salvador El Seco, Mexico experiences mild winters with average temperatures ranging from 16-18°C (January and December). Spring brings warmer days, with temperatures gradually increasing to an average of 23°C in April. Summer months are pleasant, with highs around 29-30°C (June-July) and lows around 10-12°C. Autumn sees a slight cooling trend, with temperatures returning to the winter range by September. Overall, temperature fluctuations are moderate throughout the year, with minimal extreme variations.