Grasonville Weather in September

Thinking of visiting Grasonville in September? Expect high temperatures reaching 26°C (79°F) during the day, dropping to 17°C (63°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Grasonville in September

This month experiences about 9 days of rain according to historical data, averaging 106 mm (4.2 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Grasonville in September

Daytime temperatures in Grasonville reach 26°C (79°F) in September, dropping to 17°C (63°F) at night. This kind of day-to-night contrast is typical for this time of year. At 17°C (63°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 Grasonville in September

With approximately 225 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If your ideal day consists of dry skies and pleasant temperatures, May typically offers the best circumstances for Grasonville.

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• January
• February
• March
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• May
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• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Grasonville's climate page.

Grasonville Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 30%  

Precipitation 106 mm (4.2 in)  

Rainy days 9 days  

Humidity 68% *  

Sunshine 225 hours *  

Percentage Sunshine 60% *  

* Data from: Washington DC, the United States of America (72 KM, 44 Miles).

What to Wear in Grasonville in September

Warm but pleasant conditions in Grasonville in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Grasonville in September

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Grasonville's climate page.

More climate data for Grasonville

Temperature Rainfall Sunshine Humidity

See the full Grasonville climate overview or explore weather in the United States of America.