Reston Weather in May

Thinking of visiting Reston in May? Expect high temperatures reaching 23°C (73°F) during the day, dropping to 12°C (54°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Reston in May

You can expect rain on around 14 days based on historical patterns, with 129 mm (5.1 in) average 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 Reston in May

Expect highs of 23°C (73°F) in Reston in May, with nights dropping to around 12°C (54°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 12°C (54°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 Reston in May

Expect sunny days throughout the month, with an estimated 259 hours of sunshine. This makes it a pleasant time to visit Reston.

If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.

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• January
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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 Reston's climate page.

Reston Temperature in May

Min Temperature 12°C (54°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 47%  

Precipitation 129 mm (5.1 in)  

Rainy days 14 days  

Humidity 64% *  

Sunshine 259 hours *  

Percentage Sunshine 59% *  

* Data from: Washington DC, the United States of America (30 KM, 18 Miles).

What to Wear in Reston 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Reston in May

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Camping

6/10

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 Reston's climate page.

More climate data for Reston

Temperature Rainfall Sunshine Humidity

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