average temperature in monterey ca
monterey bay, ca: Annual Weather Averages. August is the hottest month in monterey bay, ca with an average temperature of 18Â°C (64Â°F) and the coldest is January at 11Â°C (52Â°F) .onterey bay, ca: Annual Weather Averages. August is the hottest month in monterey bay, ca with an average temperature of 18Â°C (64Â°F) and the coldest is January at 11Â°C (52Â°F) .