Grafton Weather in May

May in Grafton brings pleasant temperatures, with highs of 19°C (66°F) and nights dropping to 8°C (46°F). Rainfall is on the higher side this month, averaging around 89 mm (3.5 in), so keep a rain jacket handy.

Rainfall in Grafton in May

You can expect rain on around 13 days based on historical patterns, with 89 mm (3.5 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Grafton in May

Daytime temperatures in Grafton reach 19°C (66°F) in May, dropping to 8°C (46°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Grafton in May

Expect sunny days throughout the month, with an estimated 280 hours of sunshine. This makes it a pleasant time to visit Grafton.

If you prefer dry days with pleasant temperatures, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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.

Grafton Temperature in May

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 42%  

Precipitation 89 mm (3.5 in)  

Rainy days 13 days  

Sunshine 280 hours *  

Percentage Sunshine *  

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

What to Wear in Grafton in May

Pleasant temperatures in May 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 May

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

Cycling

9/10

Walking

9/10

Camping

4/10

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.