average temperatures in august in cabo san lucas
Weather in Cabo San Lucas in August. The average maximum daytime temperature in Cabo San Lucas in August is a hot 33Â°C (91Â°F) with very high heat & humidity. There are usually 7 hours of bright sunshine each day, which represents 52% of the 13 hours of daylight. The average sea temperature in and around Cabo San Lucas in August is 28Â°C (82Â°F). Expect 65mm (2.6 inches) of rainfall across the whole of August with 4 days with some rain falling. Maximum UV levels will be extreme (11+ UV index) at midday when the skies are clear.