Arlington weather in September

September in Arlington averages 89°F by day and 69°F at night, with 2.7 inches of precipitation. It is the 4th-warmest and 8th-wettest month of the year here.

ArlingtonTexasPop. 402,134
Average high
89°F-7° vs August
Average low
69°F0 nights below freezing
Precipitation
2.7 in4 days with 0.1 in. or more
Snow
0.0 in16 days at 90°F+

Is September a good time to visit Arlington?

September is hot. Average highs reach 89°F, with about 16 days at 90°F or more. The most comfortable months overall are March to April and October to November.

On September 15 the sun rises at 7:12 am and sets at 7:34 pm, giving 12h 22m of daylight. Daylight all year.

What to pack for Arlington in September

  • Light, breathable clothes, a hat and sunscreen; carry water

Based on 30-year averages, not a forecast. Check the forecast a few days before you go.

September nearby

CityDistanceHighLowPrecip.
Arlington89°F69°F2.7 in
Grand Prairie, TX7 mi89°F69°F2.7 in
Fort Worth, TX9 mi88°F67°F2.6 in
Mansfield, TX11 mi89°F68°F3.3 in
Irving, TX14 mi89°F69°F2.7 in
Dallas, TX21 mi90°F70°F3.1 in
Flower Mound, TX21 mi89°F69°F2.7 in

Frequently asked questions

What is the weather like in Arlington in September?

In September, Arlington averages a high of 89°F and a low of 69°F, with 2.7 inches of precipitation (NOAA 1991-2020 normals).

Is September a good time to visit Arlington?

September is hot in Arlington, with average highs of 89°F. Plan outdoor time for mornings and evenings.

Does it snow in Arlington in September?

Rarely. The September snowfall normal is under half an inch.

Before and after: Arlington in August and Arlington in October. All twelve months: Arlington weather by month.

NOAA NCEI 1991-2020 climate normals, station Dallas Fort Worth Airport, TX, 13.1 miles from the city center.