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.
Holtsville Weather in September
Holtsville in September averages 24°C (75°F) during the day and 15°C (59°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Holtsville in September
Rain is expected on roughly 9 days, totalling around 87 mm (3.4 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Holtsville in September
Holtsville has excellent weather in September, with days reaching 24°C (75°F) and nights cooling to 15°C (59°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Holtsville in September
Enjoy a sunny month with about 218 hours of sunshine, the clear skies make Holtsville even more beautiful.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Holtsville Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
24°C (75°F)
Chance of Rain
30%
Precipitation
87 mm (3.4 in)
Rainy days
9 days
Humidity
68% *
Sunshine
218 hours *
Percentage Sunshine
59% *
* Data from: New York City, the United States of America (72 KM, 44 Miles).
Holtsville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Holtsville - 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 Holtsville in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Holtsville 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
Holtsville 3-Day Forecast
More climate data for Holtsville
Temperature Rainfall Sunshine Humidity
See the full Holtsville 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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