National Harbor Weather in June

June in National Harbor sees daytime temperatures around 30°C (86°F) and lows of 19°C (66°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in National Harbor in June

This is the wettest month of the year, so having an umbrella ready is a smart choice. Climate statistics over the past 30 years suggest around 13 days of rain, with 149 mm (5.9 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in National Harbor in June

Expect highs of 30°C (86°F) in National Harbor in June, with nights dropping to around 19°C (66°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 19°C (66°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in National Harbor in June

Expect sunny days throughout the month, with an estimated 282 hours of sunshine. This makes it a pleasant time to visit National Harbor.

Wind Speed in National Harbor in June

June sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Should you favor a climate that's both dry and comfortably warm, April typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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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 National Harbor's climate page.

National Harbor Temperature in June

Min Temperature 19°C (66°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 42%  

Precipitation 149 mm (5.9 in)  

Rainy days 13 days  

Humidity 65% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 282 hours *  

Percentage Sunshine 64% *  

* Data from: Washington DC, the United States of America (7 KM, 4 Miles).

What to Wear in National Harbor in June

Warm temperatures in June make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. 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 National Harbor in June

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 National Harbor's climate page.

More climate data for National Harbor

Temperature Rainfall Sunshine Humidity Wind Speed

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