Boerne Weather in September

What's the weather like in Boerne (Texas) in September 2025?

The climate in Boerne during September can be summarized as hot and damp.

September is in the fall / autumn in Boerne and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 31°C (88°F), whilst at night 18°C (65°F) is normal.

Boerne weather averages (imperial / metric)
Daytime temperature 31°C 87.7°F
Nightly temperature 18.1°C 64.5°F
Average temperature 24.5°C 76.1°F
Daily sunshine 8.1 hrs
Avg rainfall 105 mm 4.1 ins
Rainy days 7 days
Sea temperature 28.8°C 83.8°F
Humidity 67%
Windspeed 14.8kph 9 mph

On average September is the wettest month of the year in Boerne with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.1 hours of sunshine per day.

September temperatures in Boerne

Boerne average temperature in September

September rainfall

Boerne average rain in September

September hourly sunshine

Boerne 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 Boerne in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Boerne weather stats

Boerne weather statistics
Hottest month: July 33.4°C 92.1°F
Driest month: January 42mm 1.7ins
Sunniest month: July 10.4hrs
Coldest month: January 14.9°C 58.8°F
Wettest month: September 105mm 4.1ins
Map showing location of Boerne (29.79466, -98.73197) Boerne map pin © Google

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