Typical Weather in Port Arthur, TX in September
89° F Avg High
70° F Avg Low
7 Rainy Days
☀️ Temperature Summary
September is a popular time of year to visit, with an inviting climate characterized by warm temperatures. Compared to other months, Port Arthur experiences cooler conditions in September, with daytime highs averaging 89°F. You can expect overnight lows near 70°F most days. Temperatures will usually fall as the month goes on, with daily high temperatures ranging between 91°F and 84°F.
Be ready to seek shade during the day, as mid-day temperatures can be dangerous if you're caught without a way to cool off. If you want to avoid the September heat, you may consider visiting in October instead, when highs are often closer to 81°.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In September you can expect close to a 23% chance of rain for any given day. It rains more than usual in September, with total rainfall for the month typically near 7 inches.
Rainfall Throughout the Year
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