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Athens in September: Weather, Average temperature and Climate

Take a look at past year’s weather for Athens in September and see if it is worth visiting.
Check flight prices to Athens on Avionero:
September

Weather in Athens in September 2024

Great Weather
Warm
☀️
Sunny
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 22 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 61 mm of precipitation over an average of 2 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flights in one click on Avionero.

Average weather

☀️
+28°C
Avg. max. temperature
+11°C
Min.
+39°C
Max.
61 mm
Total precipitation
52%
Avg. humidity
3 m/s
Avg. wind
22 ☀️
Sunny Days
6 ⛅️
Cloudy
2 🌦
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 +34°C during the day to a minimum of +14°C during the night, the temperature in September averages around +29°C.

The average maximum temperature goes down 10% by the end of the month, compared with the beginning of the month, from +32°C to +30°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:

Climate in Athens in September

Athens weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
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
16 mm61 mm60 mm
Wind
4 m/s3 m/s3 m/s
Humidity
44%52%61%
Air pressure
1010 HPa1013 HPa1016 HPa
Sunny days
282216
Cloudy days
2612
Rainy days
123
Snowy days
000

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 16 mm to 61 mm. Humidity rises from 44% to 52%. 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 28 sunny days in August to 22 in September.

Next month (October) brings a further decline in the weather.

Wind

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 8 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 decreasing during September, going from 2 m/s to 1 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
Total precipitation in September is about 249 mm, with a 37% chance of rain on a typical day. The maximum amount of rainfall per day is around 84 mm, which is considered heavy rain. September is a pretty wet month with over 11 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 19% chance of precipitation and 110 mm of rainfall per day. July, on the other hand, is the driest month with a mere 0% 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
☀️
+32°C
2 September
☀️
+32°C
3 September
☀️
+30°C
4 September
☀️
+32°C
5 September
☁️
+26°C
6 September
☀️
+27°C
7 September
☀️
+27°C
8 September
☀️
+30°C
9 September
☀️
+32°C
10 September
☀️
+33°C
11 September
☀️
+34°C
12 September
☀️
+30°C
13 September
☁️
+29°C
14 September
☀️
+29°C
15 September
☀️
+31°C
16 September
☀️
+32°C
17 September
☀️
+33°C
18 September
☀️
+32°C
19 September
☀️
+28°C
20 September
☁️
+27°C
21 September
🌧️
+26°C
22 September
☁️
+21°C
23 September
☀️
+22°C
24 September
☀️
+24°C
25 September
☀️
+25°C
26 September
☀️
+27°C
27 September
☀️
+25°C
28 September
☀️
+29°C
29 September
☀️
+29°C
30 September
☀️
+30°C
In September 2023 Athens had 25 sunny days, 4 cloudy days, and 1 rainy days. The average maximum temperature was +29°C, with an absolute maximum of +34°C and a minimum of +21°C. The average humidity was 58%, with a maximum of 84% and a minimum of 26%. 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 2009 (+27°C) and the highest in 1994 (+33°C). The driest year was 1992 with only 0 mm of rainfall, and the wettest year was 2001 with 0 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.

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.

Other cities in Greece

Check out the weather for other cities in Greece.

Monthly weather in Athens

Source of the data

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, 2022.

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.