Rockwall Weather in September

During September, Rockwall experiences very high daytime temperatures of 32°C (90°F) and cooler nights around 19°C (66°F). Expect quite a bit of rainfall. Around 83 mm (3.3 in) is typical.

Rainfall in Rockwall in September

Based on our climate data of the past 30 years, about 7 days of rain are anticipated, with 83 mm (3.3 in) on average. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in Rockwall in September

September in Rockwall brings typical temperatures with highs around 32°C (90°F) and lows of 19°C (66°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Rockwall in September

Enjoy a sunny month with about 248 hours of sunshine, the clear skies make Rockwall even more beautiful.

For Rockwall itself, April and November generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
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• 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 Rockwall's climate page.

Rockwall Temperature in September

Min Temperature 19°C (66°F)  

Max Temperature 32°C (90°F)  

Chance of Rain 22%  

Precipitation 83 mm (3.3 in)  

Rainy days 7 days  

Humidity 67% *  

Sunshine 248 hours *  

Percentage Sunshine 66% *  

* Data from: Dallas, the United States of America (35 KM, 22 Miles).

What to Wear in Rockwall in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Rockwall in September

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

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 Rockwall's climate page.

More climate data for Rockwall

Temperature Rainfall Sunshine Humidity

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