San Antonio Bay Weather in September

Thinking of visiting San Antonio Bay in September? Expect high temperatures reaching 28°C (82°F) during the day, dropping to 22°C (72°F) at night, with some rainfall likely.

Rainfall in San Antonio Bay in September

Rain is expected on roughly 6 days, totalling around 45 mm (1.8 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in San Antonio Bay in September

September is a good time to be in San Antonio Bay. Days are excellent, reaching 28°C (82°F), with nights around 22°C (72°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 22°C (72°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in San Antonio Bay in September

Enjoy a sunny month with about 240 hours of sunshine, the clear skies make San Antonio Bay even more beautiful.

Average water temperature in September

With water at 25°C (77°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

So this is a great month to visit if you prefer dry days with pleasant temperatures.