Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
September verdict
Good for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 7.6h per day, enough for a balanced month. Rainfall averages 158mm, so some wet days are possible.
Monthly averages
Temp
31°C
Rain
158mm
Sun
7.6h
Weather score
67
Good
Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Showers
Rainfall averages 158mm, so some wet days are possible.
Some sun
Sunshine averages 7.6h per day, enough for a balanced month.
Map
Compare Port Arthur, Texas, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September31°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September158mm average rain
September is one of Port Arthur's wettest months, so rain is likely to be a major planning factor.
Driest monthsFebruary to April and October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September7.6 hours average sun
September sits close to Port Arthur's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
September67 weather score
September scores above Port Arthur's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to June and September to October
These months have the strongest weather score in the monthly averages.