huatulco average temperature
Huatulco: Annual Weather Averages. May is the hottest month in Huatulco with an average temperature of 29Â°C (84Â°F) and the coldest is January at 26Â°C (79Â°F) . The wettest month is June with an average of 153mm of rain.The best month to swim in the sea is in May when the average sea temperature is 30Â°C (86Â°F).ay is the hottest month in Huatulco with an average temperature of 29Â°C (84Â°F) and the coldest is January at 26Â°C (79Â°F) . The wettest month is June with an average of 153mm of rain.