Granbury Weather in September

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

The climate in Granbury during September can be summarized as hot and a little damp.

September is in the fall / autumn in Granbury and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 31°C (88°F), whilst at night 19°C (65°F) is normal.

Granbury weather averages (imperial / metric)
Daytime temperature 31.3°C 88.3°F
Nightly temperature 18.5°C 65.3°F
Average temperature 24.9°C 76.8°F
Daily sunshine 8.8 hrs
Avg rainfall 85 mm 3.4 ins
Rainy days 7 days
Sea temperature 25.4°C 77.7°F
Humidity 66%
Windspeed 16.2kph 10 mph

On average September is the 2nd wettest month of the year in Granbury with around 85mm 3.4 inches of rain making it a a little 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 8.8 hours of sunshine per day.

September temperatures in Granbury

Granbury average temperature in September

September rainfall

Granbury average rain in September

September hourly sunshine

Granbury 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 Granbury 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

Granbury weather stats

Granbury weather statistics
Hottest month: July 35.3°C 95.5°F
Driest month: December 40mm 1.6ins
Sunniest month: July 11.5hrs
Coldest month: January 12.3°C 54.1°F
Wettest month: May 106mm 4.2ins
Map showing location of Granbury (32.44208, -97.7942) Granbury map pin © Google

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