September is an ideal time to visit Athens if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +28°C and about 20 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 62 mm of precipitation over an average of 4 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flightsin one click on Avionero.
Average weather
☀️
+28°C
Avg. max. temperature
+11°C
Min.
+39°C
Max.
62 mm
Total precipitation
53%
Avg. humidity
3 m/s
Avg. wind
20 ☀️
Sunny Days
4 ⛅️
Cloudy
4 🌦
Rainy
Our opinion: Athens has great weather in September.
Average temperature in Athens in September
Here are the expected maximum, average and minimum temperatures in Athens for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +33°C during the day to a minimum of +18°C during the night, the temperature in September averages around +29°C.
The average maximum temperature goes down 27% by the end of the month, compared with the beginning of the month, from +31°C to +27°C.
Is Athens warm or cold in September?
Athens is typically warm in September.
Maximum temperatures go down compared to the previous month from +32°C to +28°C. The minimum temperature also goes down from +23°C to +20°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Athens:
Water temperature in Athens in September
Water in Athens in September is Warm. It varies from +24°C to +26°C, with an average of +25°C.This is almost similar to the air temperature, which averages +28°C.
The water temperature in September is one of the warmest of the entire year:
The warmest water temperatures in Athens are reached in August, when the average sea temperature rises to +26°C. The coldest water temperatures are in February, with an average of +15°C.
Can you swim in Athens in September?
You can absolutely swim in Athens in September, the water is warm (+25°C in average), similar to heated pools. Suitable for most people, including children and the elderly.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Bring your swimming suit, sunscreen and your favorite inflatable pink flamingo.
Climate in Athens in September
Athens weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+32°C
+28°C
+23°C
Min. temperature
+17°C
+11°C
+6°C
Max. temperature
+43°C
+39°C
+34°C
Rainfall
17 mm
62 mm
61 mm
Wind
4 m/s
3 m/s
3 m/s
Avg. water temperature
+26°C
+25°C
+22°C
Humidity
44%
53%
62%
Air pressure
1010 HPa
1013 HPa
1016 HPa
Sunny days
26
20
14
Cloudy days
1
4
8
Rainy days
2
4
6
Snowy days
0
0
0
September weather is still as great as in August.It’s getting colder in September. From +32°C in the day, the average maximum temperature lowers to +28°C.Prepare for more rain. Average rainfall goes from 17 mm to 62 mm.Humidity rises from 44% to 53%.Winds are calmer in comparison to August, going down from 4 m/s to 3 m/s on average.The days becoming less sunny, going from 26 sunny days in August to 20 in September.
Next month (October) brings a further decline in the weather.
Wind speed in Athens in September based on historical data.
Last Year
Historical Data
The average wind speed is 4 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Athens is gradually increasing during September, going from 2 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Athens based on historical data.
Last Year
Historical Data
Typically, there is a 47% chance of rain on an average day in September, with total rainfall of approximately 111 mm. The maximum amount of rainfall per day is around 30 mm, which is moderate rain.September is a pretty wet month with over 14 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Athens wettest month is December, where a typical day has a 35% chance of precipitation and 114 mm of rainfall per day. July, on the other hand, is the driest month with a mere 3% chance of precipitation and 6 mm of rainfall per day.
How was the weather last September in Athens?
This is the weather in Athens in September 2023:
1 September
☀️
+31°C
2 September
☀️
+32°C
3 September
☀️
+31°C
4 September
☁️
+28°C
5 September
☁️
+25°C
6 September
🌧️
+26°C
7 September
🌧️
+26°C
8 September
☀️
+27°C
9 September
☀️
+27°C
10 September
☀️
+27°C
11 September
☀️
+26°C
12 September
☀️
+29°C
13 September
☀️
+30°C
14 September
☀️
+31°C
15 September
☀️
+32°C
16 September
☀️
+32°C
17 September
☀️
+29°C
18 September
☀️
+27°C
19 September
☀️
+28°C
20 September
☀️
+30°C
21 September
☀️
+31°C
22 September
☀️
+31°C
23 September
☀️
+33°C
24 September
☀️
+32°C
25 September
☁️
+31°C
26 September
☁️
+28°C
27 September
☁️
+25°C
28 September
☁️
+25°C
29 September
☁️
+26°C
30 September
☀️
+27°C
In September 2023 Athens had 21 sunny days, 7 cloudy days, and 2 rainy days. The average maximum temperature was +29°C, with an absolute maximum of +33°C and a minimum of +25°C. The average humidity was 60%, with a maximum of 100% and a minimum of 28%. The average wind speed was 4 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change over Years
This is how Athens climate have been changing during last 43 years period.
The climate in Athens in September has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+20°C) and the highest in 2023 (+23°C). The driest year was 2000 with only 170 mm of rainfall, and the wettest year was 2022 with 5004 mm.
FAQ
Frequently asked questions about the weather in Athens in September:
Is September a good time to visit Athens?
Yes, September is a great time to go to Athens, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Athens.
Can you sunbathe in Athens in September?
September is warm in Athens. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in Athens in September?
Yes, you can swim in Athens in September, the water temperature averaging at +25°C. This temperature is considered warm and comfortable for most swimmers.
Is Athens rainy in September?
Athens is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Athens in September?
Yes, Athens is sunny in September. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.
For this page, we’ve looked at the typical weather in Athens, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
