South Valley Weather in September

What's the weather like in South Valley (New Mexico) in September 2025?

The climate in South Valley during September can be summarized as warm and dry.

September is in the fall / autumn in South Valley and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (81°F), whilst at night 12°C (53°F) is normal.

South Valley weather averages (imperial / metric)
Daytime temperature 27.5°C 81.4°F
Nightly temperature 11.6°C 52.8°F
Average temperature 19.5°C 67.1°F
Daily sunshine 10.3 hrs
Avg rainfall 30 mm 1.2 ins
Rainy days 6 days
Sea temperature 20.2°C 68.4°F
Humidity 47%
Windspeed 14.4kph 9 mph

On average September is the 3rd wettest month of the year in South Valley with around 30mm 1.2 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.3 hours of sunshine per day.

September temperatures in South Valley

South Valley average temperature in September

September rainfall

South Valley average rain in September

September hourly sunshine

South Valley 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 South Valley 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

South Valley weather stats

South Valley weather statistics
Hottest month: July 32.8°C 91°F
Driest month: January 12mm 0.5ins
Sunniest month: June 12.7hrs
Coldest month: January 8.2°C 46.8°F
Wettest month: August 52mm 2ins
Map showing location of South Valley (35.01005, -106.67808) South Valley map pin © Google

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