Typical Weather in Port Arthur, TX in December
65° F Avg High
46° F Avg Low
6 Rainy Days
☀️ Temperature Summary
Compared to other months, Port Arthur experiences cooler conditions in December, with daytime highs averaging 65°F. You can expect overnight lows near 46°F most days.
December is a great time to visit Port Arthur, with mild temperatures and sunny days being very common.
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 December you can expect close to a 19% chance of rain for any given day. It rains less than usual in December, with total rainfall for the month typically near 5 inches.
Rainfall Throughout the Year
Planning a trip to Port Arthur? Try our free trip weather planner