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.