September could be a good time to visit Rochester, as the weather is generally fine. The average high temperature is around +72°F, and there are typically 5 sunny days in September. However, expect about 16 rainy days, and total monthly rainfall of approximately 107 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+72°F
Avg. max. temperature
+34°F
Min.
+91°F
Max.
107 mm
Total precipitation
75%
Avg. humidity
3 m/s
Avg. wind
5 ☀️
Sunny Days
9 ⛅️
Cloudy
16 🌦
Rainy
Our opinion: Rochester has OK weather in September.
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Average temperature in Rochester in September
Here are the expected maximum, average and minimum temperatures in Rochester for September based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in September is +72°F with a maximum of +90°F and a minimum of +45°F.
The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +75°F to +72°F.
Is Rochester warm or cold in September?
Rochester is typically mild in September.
Maximum temperatures go down compared to the previous month from +79°F to +72°F. The minimum temperature also goes down from +63°F to +55°F.
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 Rochester:
Climate in Rochester in September
Rochester weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+79°F
+72°F
+59°F
Min. temperature
+43°F
+34°F
+25°F
Max. temperature
+93°F
+91°F
+88°F
Rainfall
103 mm
107 mm
112 mm
Wind
2 m/s
3 m/s
3 m/s
Humidity
74%
75%
74%
Air pressure
1015 HPa
1016 HPa
1016 HPa
Sunny days
4
5
3
Cloudy days
9
9
9
Rainy days
17
16
19
Snowy days
0
0
0
September typically has worse weather conditions compared to August.It’s getting colder in September. From +79°F in the day, the average maximum temperature lowers to +72°F.Prepare for more rain. Average rainfall goes from 103 mm to 107 mm.Humidity rises from 74% to 75%.Winds are stronger in comparison to August, going up from 2 m/s to 3 m/s on average.The good news is there are likely to be more sunny days in September, from 4 to 5.
October brings much the same weather, it remains ok.
Wind speed in Rochester in September based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Rochester 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 Rochester based on historical data.
Last Year
Historical Data
Total precipitation in September is about 54 mm, with a 37% chance of rain on a typical day. The maximum amount of rainfall per day is around 19 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 wellies.
September is one of the rainiest months in Rochester, here is a comparison with other months, total mm:
Rochester wettest month is October, where a typical day has a 61% chance of precipitation and 112 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 29 mm of rainfall per day.
How was the weather last September in Rochester?
This is the weather in Rochester in September 2024:
1 September
☀️
+76°F
2 September
☀️
+81°F
3 September
☀️
+87°F
4 September
☁️
+86°F
5 September
☀️
+88°F
6 September
☀️
+89°F
7 September
🌧️
+81°F
8 September
☁️
+74°F
9 September
☁️
+66°F
10 September
☁️
+69°F
11 September
☁️
+71°F
12 September
🌧️
+76°F
13 September
🌧️
+69°F
14 September
☁️
+65°F
15 September
☀️
+69°F
16 September
☀️
+70°F
17 September
☁️
+72°F
18 September
☁️
+66°F
19 September
🌧️
+68°F
20 September
☀️
+66°F
21 September
☀️
+70°F
22 September
☀️
+73°F
23 September
☁️
+69°F
24 September
☁️
+61°F
25 September
☁️
+67°F
26 September
☁️
+66°F
27 September
☁️
+69°F
28 September
☁️
+69°F
29 September
☁️
+70°F
30 September
☀️
+72°F
In September 2024 Rochester had 11 sunny days, 15 cloudy days, and 4 rainy days. The average maximum temperature was +72°F, with an absolute maximum of +90°F and a minimum of +61°F. The average humidity was 78%, with a maximum of 95% and a minimum of 44%. The average wind speed was 2 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Rochester climate has changed over the last 43 years.
The climate in Rochester in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1992 (+54°F) and the highest in 2012 (+61°F). The driest year was 1999 with only 704 mm of rainfall, and the wettest year was 2021 with 1454 mm.
FAQ
Frequently asked questions about the weather in Rochester in September:
Is September a good time to visit Rochester?
It’s always a good time to visit Rochester, 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 Rochester in September?
September has mild temperatures in Rochester. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Rochester rainy in September?
Rochester 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 Rochester in September?
Usually, it’s not very sunny in Rochester in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Rochester, 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.
