Mild
Average highs are around 25°C, so days are mild rather than hot.
September verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 6.8h per day, enough for a balanced month. Rainfall averages 79mm, which is relatively low for holiday planning.
Monthly averages
Temp
25°C
Rain
79mm
Sun
6.8h
Weather score
63
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Drier
Rainfall averages 79mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.8h per day, enough for a balanced month.
Map
Compare Marietta, Ohio, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September25°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
September79mm average rain
September sits on the drier side of Marietta's year, which helps with sightseeing and transfers.
Driest monthsJanuary to February, April, June, and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September6.8 hours average sun
September is brighter than Marietta's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
September63 weather score
September scores above Marietta's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.