Planning a trip to Lyon in September? You are in luck! The weather is generally good, with an average maximum temperature of +73°F and approximately 11 sunny days. Just be prepared for some rain, as there are usually around 7 rainy days and 90 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+73°F
Avg. max. temperature
+36°F
Min.
+93°F
Max.
90 mm
Total precipitation
71%
Avg. humidity
1 m/s
Avg. wind
11 ☀️
Sunny Days
12 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: Lyon has good weather in September.
Average temperature in Lyon in September
Here are the expected maximum, average and minimum temperatures in Lyon for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +88°F during the day to a minimum of +43°F during the night, the temperature in September averages around +73°F.
The average maximum temperature goes down 56% by the end of the month, compared with the beginning of the month, from +84°F to +59°F.
Is Lyon warm or cold in September?
Lyon is typically warm in September.
Maximum temperatures go down compared to the previous month from +81°F to +73°F. The minimum temperature also goes down from +61°F to +55°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Lyon:
Climate in Lyon in September
Lyon weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+81°F
+73°F
+64°F
Min. temperature
+43°F
+36°F
+23°F
Max. temperature
+104°F
+93°F
+82°F
Rainfall
86 mm
90 mm
100 mm
Wind
1 m/s
1 m/s
1 m/s
Humidity
64%
71%
78%
Air pressure
1015 HPa
1016 HPa
1016 HPa
Sunny days
13
11
7
Cloudy days
11
12
15
Rainy days
7
7
9
Snowy days
0
0
0
September weather is still as good as in August.It’s getting colder in September. From +81°F in the day, the average maximum temperature lowers to +73°F.Prepare for more rain. Average rainfall goes from 86 mm to 90 mm.Humidity rises from 64% to 71%.The average wind speed doesn’t change much during September, staying around 1 m/s.The days becoming less sunny, going from 13 sunny days in August to 11 in September.
Next month (October) brings a further decline in the weather.
Wind speed in Lyon in September based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Lyon is gradually increasing during September, going from 1 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Lyon based on historical data.
Last Year
Historical Data
Typically, there is a 60% chance of rain on an average day in September, with total rainfall of approximately 134 mm. The maximum amount of rainfall per day is around 31 mm, which is moderate rain.September is a pretty wet month with over 18 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Lyon, here is a comparison with other months, total mm:
Lyon wettest month is October, where a typical day has a 29% chance of precipitation and 100 mm of rainfall per day. February, on the other hand, is the driest month with a mere 21% chance of precipitation and 53 mm of rainfall per day.
How was the weather last September in Lyon?
This is the weather in Lyon in September 2023:
1 September
☀️
+84°F
2 September
☀️
+83°F
3 September
☁️
+80°F
4 September
☀️
+86°F
5 September
☀️
+88°F
6 September
☀️
+87°F
7 September
🌧️
+81°F
8 September
☀️
+79°F
9 September
☀️
+77°F
10 September
☀️
+75°F
11 September
☀️
+78°F
12 September
☀️
+88°F
13 September
☀️
+85°F
14 September
🌧️
+82°F
15 September
🌧️
+79°F
16 September
☀️
+69°F
17 September
☀️
+61°F
18 September
☀️
+67°F
19 September
☀️
+67°F
20 September
☀️
+68°F
21 September
☀️
+68°F
22 September
☀️
+72°F
23 September
☀️
+74°F
24 September
🌧️
+70°F
25 September
🌧️
+63°F
26 September
☁️
+65°F
27 September
☀️
+62°F
28 September
🌧️
+66°F
29 September
🌧️
+60°F
30 September
☀️
+60°F
In September 2023 Lyon had 21 sunny days, 2 cloudy days, and 7 rainy days. The average maximum temperature was +73°F, with an absolute maximum of +88°F and a minimum of +59°F. The average humidity was 72%, with a maximum of 100% and a minimum of 33%. The average wind speed was 2 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Lyon climate has changed over the last 43 years.
The climate in Lyon in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1995 (+68°F) and the highest in 2018 (+83°F). The driest year was 1985 with only 13 mm of rainfall, and the wettest year was 1993 with 340 mm.
FAQ
Frequently asked questions about the weather in Lyon in September:
Is September a good time to visit Lyon?
September is a really good time to go to Lyon. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Lyon.
Can you sunbathe in Lyon in September?
September is warm in Lyon. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Is Lyon rainy in September?
Lyon 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 Lyon in September?
The amount of sunny days in Lyon during September varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in Lyon, 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.