Santa Maria Huatulco, Mexico has a warm and humid climate year-round. Winters are mild, with temperatures ranging from the mid-60s to low 90s Fahrenheit, averaging in the mid-80s. Spring and fall bring similar conditions, with average highs often reaching the upper 80s and lows in the mid-70s. Summer months are slightly cooler, with temperatures peaking in the mid-90s for short periods, but overall averages remain steady. The warmest months of April to May see a slight increase in temperature, while June to September experience a slightly cooler trend.