Mild
Average highs are around 23°C, so days are mild rather than hot.
September verdict
Mixed for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 7h per day, enough for a balanced month. Rainfall averages 228mm, so showers are a real planning factor.

Monthly averages
Temp
23°C
Rain
228mm
Sun
7h
Sea
25°C
Weather score
52
Mixed
Mild
Average highs are around 23°C, so days are mild rather than hot.
Wet
Rainfall averages 228mm, so showers are a real planning factor.
Some sun
Sunshine averages 7h per day, enough for a balanced month.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Compare Batumi, Georgia with nearby places by weather score, rain, sun, temperature, and swim conditions.
September23°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.
September228mm average rain
September is wetter than Batumi's yearly average, so flexible plans matter more.
Driest monthsMarch to May and July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September7 hours average sun
September sits close to Batumi's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to June
This stretch has the strongest sunshine in the monthly averages.
September25°C average sea
September is one of Batumi's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
September52 weather score
September scores above Batumi'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.