Typical Weather in Port Arthur, TX in May
85° F Avg High
67° F Avg Low
5 Rainy Days
☀️ Temperature Summary
Compared to other months, Port Arthur experiences cooler conditions in May, with daytime highs averaging 85°F. Lows overnight are typically around 67°F.
May 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 May you can expect close to a 16% chance of rain for any given day. It rains less than usual in May, with total rainfall for the month typically near 6 inches.
Rainfall Throughout the Year
Planning a trip to Port Arthur? Try our free trip weather planner