San Leon Weather in September

What's the weather like in San Leon (Texas) in September 2024?

The climate in San Leon during September can be summarized as hot, humid and wet.

September is in the fall / autumn in San Leon and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (74°F) is normal.

San Leon weather averages (imperial / metric)
Daytime temperature 29.8°C 85.6°F
Nightly temperature 23.3°C 73.9°F
Average temperature 26.5°C 79.7°F
Daily sunshine 8.4 hrs
Avg rainfall 136 mm 5.3 ins
Rainy days 10 days
Sea temperature 28.8°C 83.8°F
Humidity 78%
Windspeed 13kph 8 mph

On average September is the wettest month of the year in San Leon with around 136mm 5.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.4 hours of sunshine per day.

September temperatures in San Leon

San Leon average temperature in September

September rainfall

San Leon average rain in September

September hourly sunshine

San Leon average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Leon in September 2024.