Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Ronkonkoma Weather in September
In Ronkonkoma, September brings high daytime temperatures around 24°C (75°F), with nights cooling to 15°C (59°F). Expect quite a bit of rainfall this month.
Rainfall in Ronkonkoma in September
This month experiences about 9 days of rain according to historical data, averaging 88 mm (3.5 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Ronkonkoma in September
September is a good time to be in Ronkonkoma. Days are excellent, reaching 24°C (75°F), with nights around 15°C (59°F). This kind of day-to-night contrast is typical for this time of year. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Ronkonkoma in September
Enjoy a sunny month with about 218 hours of sunshine, the clear skies make Ronkonkoma even more beautiful.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Ronkonkoma.
Ronkonkoma Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
24°C (75°F)
Chance of Rain
30%
Precipitation
88 mm (3.5 in)
Rainy days
9 days
Humidity
68% *
Sunshine
218 hours *
Percentage Sunshine
59% *
* Data from: New York City, the United States of America (65 KM, 40 Miles).
Ronkonkoma Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ronkonkoma - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Ronkonkoma in September
For Ronkonkoma in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Ronkonkoma in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports9/10
Ronkonkoma 3-Day Forecast
More climate data for Ronkonkoma
Temperature Rainfall Sunshine Humidity
See the full Ronkonkoma climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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Yosemite National Park is definitely worth a visit
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