Arlington Weather in September

September in Arlington typically sees daytime highs of 21°C (70°F) and nighttime lows of 9°C (48°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.

Rainfall in Arlington in September

Historically, the month has about 13 days of rain, averaging 73 mm (2.9 in) in total. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Arlington in September

The perfect temperature in Arlington in September makes it a solid month to visit, with 21°C (70°F) during the day and 9°C (48°F) at night. This month falls in the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Arlington in September

The area experiences a moderate amount of sunshine, with approximately 188 hours of sunlight expected. This means a decent mix of sun and overcast.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Arlington.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Arlington's climate page.

Arlington Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 44%  

Precipitation 73 mm (2.9 in)  

Rainy days 13 days  

Sunshine 188 hours *  

Percentage Sunshine *  

* Data from: Bellingham, the United States of America (68 KM, 42 Miles).

What to Wear in Arlington in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Arlington in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Arlington's climate page.

More climate data for Arlington

Temperature Rainfall Sunshine

See the full Arlington climate overview or explore weather in the United States of America.