Typical Weather in Port Arthur, TX in January
63° F Avg High
43° F Avg Low
7 Rainy Days
☀️ Temperature Summary
Compared to other months, Port Arthur experiences cooler conditions in January, with daytime highs averaging 63°F. Overnight lows can reach 43°F. This is the coldest month of the year in Port Arthur.
Despite it being the coolest month of the year, January is still 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 January you can expect close to a 21% chance of rain for any given day. It rains more than usual in January, 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