Grafton Weather in September

With daytime temperatures of 23°C (73°F) and nighttime lows of 12°C (54°F), September in Grafton brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 89 mm (3.5 in) falls on average.

Rainfall in Grafton in September

Typically, about 11 days will experience rainfall, with an average of 89 mm (3.5 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 Grafton in September

September in Grafton is generally perfect, with days reaching 23°C (73°F) and nights settling around 12°C (54°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Grafton in September

The city usually sees around 220 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Grafton.

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• January
• February
• March
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• May
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• October
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For a detailed overview over the year and the best time to visit the United States of America, check out our Grafton's climate page.

Grafton Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 37%  

Precipitation 89 mm (3.5 in)  

Rainy days 11 days  

Sunshine 220 hours *  

Percentage Sunshine *  

* Data from: Port Washington, the United States of America (9 KM, 6 Miles).

What to Wear in Grafton 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Grafton in September

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

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

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 Grafton's climate page.

More climate data for Grafton

Temperature Rainfall Sunshine

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