Fairfield Weather in September

What's the weather like in Fairfield (Idaho) in September 2024?

The climate in Fairfield during September can be summarized as mild and dry.

September is in the fall / autumn in Fairfield and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 22°C (71°F), whilst at night 2°C (36°F) is normal.

Fairfield weather averages (imperial / metric)
Daytime temperature 21.7°C 71°F
Nightly temperature 2.2°C 35.9°F
Average temperature 11.9°C 53.4°F
Daily sunshine 10.3 hrs
Avg rainfall 24 mm 0.9 ins
Rainy days 6 days
Sea temperature 14.8°C 58.7°F
Humidity 48%
Windspeed 14.4kph 9 mph

On average September is the 3rd driest month of the year in Fairfield with around 24mm 0.9 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 Fairfield

Fairfield average temperature in September

September rainfall

Fairfield average rain in September

September hourly sunshine

Fairfield 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 Fairfield in September 2024.