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Holtsville weather in September (New York State, United States of America)

Looking to travel to Holtsville in September? This guide provides all the details you need.

In Holtsville, September is characterized by high temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 24°C. But by evening, they drop to around 15°C.

Holtsville in September usually receives moderate rainfall, averaging around 87 mm for the month. Rain is expected on roughly 9 days.

The days are predominantly sunny, with an estimated total of around 218 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. May, July and September generally stand out with the best circumstances. While January, February, March and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Holtsville climate page with graphs.

 

Holtsville, monthly averages in September

Min TemperatureMin Temperature 15°C  
Max TemperatureMax Temperature 24°C  
Chance of RainChance of Rain 30%  
PrecipitationPrecipitation 87 mm  
Rainy daysRainy days 9 days  
HumidityHumidity 68% *  
SunshineSunshine 218 hours *  
Percentage SunshinePercentage Sunshine 59% *  
* Data from: New York City, the United States of America (72 KM, 44 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Holtsville in September?

For visitors traveling to Holtsville, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming
9/10
Cycling
9/10
Walking
9/10
Barbeque
8/10
Camping
8/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Holtsville.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.