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Syracuse in September: Weather, Average temperature and Climate
Take a look at past year’s weather for Syracuse in September and see if it is worth visiting.
Weather in Syracuse in September 2026
OK Weather
🌧️
RainySyracuse in September usually sees fair weather conditions, with an average daily high temperature of +22°C and roughly 4 sunny days. However, you should prepare for about 16 rainy days with an average precipitation of 109 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Average weather
☀️
+22°C
Avg. max. temperature
0°C
Min.
+34°C
Max.
109 mm
Total precipitation
76%
Avg. humidity
2 m/s
Avg. wind
4 ☀️
Sunny Days
10 ⛅️
Cloudy
16 🌦
Rainy
Our opinion: Syracuse has OK weather in September.
Average temperature in Syracuse in September
Here are the expected maximum, average and minimum temperatures in Syracuse for September based on the historical data.
Last Year
Historical Data
The temperature in September is +23°C on average, with a range between a maximum of +33°C during the day and a minimum of +6°C at night.
The average maximum temperature goes down 4% by the end of the month, compared with the beginning of the month, from +25°C to +24°C.
Is Syracuse warm or cold in September?
Syracuse is typically mild in September.
Maximum temperatures go down compared to the previous month from +26°C to +22°C. The minimum temperature also goes down from +17°C to +13°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how September is compared to other months in Syracuse:
Climate in Syracuse in September
Syracuse weather looks like this, on average, in September and the surrounding months.
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | +26°C | +22°C | +15°C | |||
| Min. temperature | +6°C | 0°C | -4°C | |||
| Max. temperature | +35°C | +34°C | +31°C | |||
| Rainfall | 117 mm | 109 mm | 115 mm | |||
| Wind | 2 m/s | 2 m/s | 2 m/s | |||
| Humidity | 75% | 76% | 75% | |||
| Air pressure | 1015 HPa | 1017 HPa | 1016 HPa | |||
☀️ | Sunny days | 3 | 4 | 3 | ||
☁️ | Cloudy days | 8 | 10 | 9 | ||
🌧️ | Rainy days | 19 | 16 | 19 | ||
❄️ | Snowy days | 0 | 0 | 0 | ||
| Our opinion | OK | OK | OK | |||
September weather is still as ok as in August. It’s getting colder in September. From +26°C in the day, the average maximum temperature lowers to +22°C. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 117 mm to 109 mm. Humidity rises from 75% to 76%. The average wind speed doesn’t change much during September, staying around 2 m/s. The good news is there are likely to be more sunny days in September, from 3 to 4.
October brings much the same weather, it remains ok.
Wind
Wind speed in Syracuse in September based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Syracuse 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 Syracuse based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 37%, leading to total precipitation of around 102 mm. The maximum amount of rainfall per day is around 23 mm, which is considered light 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:
Syracuse wettest month is June, where a typical day has a 60% chance of precipitation and 125 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 30 mm of rainfall per day.
How was the weather last September in Syracuse?
This is the weather in Syracuse in September 2025:
lun.
mar.
mer.
jeu.
ven.
sam.
dim.
1
☁️
+25°C
2
☁️
+27°C
3
☀️
+30°C
4
☁️
+30°C
5
☁️
+31°C
6
☀️
+33°C
7
☁️
+30°C
8
☁️
+25°C
9
☁️
+22°C
10
🌧️
+21°C
11
☁️
+20°C
12
☁️
+27°C
13
🌧️
+22°C
14
☁️
+19°C
15
☀️
+22°C
16
☀️
+22°C
17
☁️
+22°C
18
🌧️
+22°C
19
🌧️
+19°C
20
☀️
+20°C
21
☀️
+22°C
22
☀️
+23°C
23
☁️
+17°C
24
🌧️
+17°C
25
☁️
+22°C
26
☁️
+19°C
27
☁️
+21°C
28
☁️
+22°C
29
☁️
+20°C
30
☁️
+24°C
In September 2025 Syracuse had 7 sunny days, 18 cloudy days, and 5 rainy days. The average maximum temperature was +23°C, with an absolute maximum of +33°C and a minimum of +17°C. The average humidity was 81%, with a maximum of 97% and a minimum of 36%. The average wind speed was 2 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change over Years
This is how Syracuse climate have been changing during last 43 years period.
The climate in Syracuse in September has not changed much over the last 43 years.
The average temperature was the lowest in 1997 (+13°C) and the highest in 2012 (+16°C). The driest year was 1995 with only 680 mm of rainfall, and the wettest year was 2019 with 2021 mm.
FAQ
Frequently asked questions about the weather in Syracuse in September:
Is September a good time to visit Syracuse?
It’s always a good time to visit Syracuse, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Syracuse in September?
September has mild temperatures in Syracuse. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Syracuse rainy in September?
Syracuse 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 Syracuse in September?
Usually, it’s not very sunny in Syracuse in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in USA
Check out the weather for other cities in USA.
Monthly weather in Syracuse
Source of the data
For this page, we’ve looked at the typical weather in Syracuse, 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.