Fredericksburg Weather in September

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

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

September is in the fall / autumn in Fredericksburg and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 31°C (88°F), whilst at night 18°C (64°F) is normal.

Fredericksburg weather averages (imperial / metric)
Daytime temperature 31°C 87.7°F
Nightly temperature 17.9°C 64.1°F
Average temperature 24.4°C 75.9°F
Daily sunshine 8.2 hrs
Avg rainfall 92 mm 3.6 ins
Rainy days 7 days
Sea temperature 28.2°C 82.7°F
Humidity 67%
Windspeed 15.1kph 9 mph

On average September is the 2nd wettest month of the year in Fredericksburg with around 92mm 3.6 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 8.2 hours of sunshine per day.

September temperatures in Fredericksburg

Fredericksburg average temperature in September

September rainfall

Fredericksburg average rain in September

September hourly sunshine

Fredericksburg 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 Fredericksburg 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

Fredericksburg weather stats

Fredericksburg weather statistics
Hottest month: July 33.8°C 92.8°F
Driest month: January 39mm 1.5ins
Sunniest month: July 10.5hrs
Coldest month: January 14.6°C 58.3°F
Wettest month: May 99mm 3.9ins
Map showing location of Fredericksburg (30.2752, -98.87198) Fredericksburg map pin © Google

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