National Harbor Weather in October

October in National Harbor sees daytime temperatures around 20°C (68°F) and lows of 10°C (50°F) at night. With around 132 mm (5.2 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in National Harbor in October

Analyzing past climate data, one can expect approximately 10 days of rain, averaging 132 mm (5.2 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in National Harbor in October

Daytime temperatures in National Harbor reach 20°C (68°F) in October, dropping to 10°C (50°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in National Harbor in October

Expect sunny days throughout the month, with an estimated 205 hours of sunshine. This makes it a pleasant time to visit National Harbor.

Wind Speed in National Harbor in October

In October, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

If you prefer dry days with pleasant temperatures, April typically offers 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.

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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 October

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 34%  

Precipitation 132 mm (5.2 in)  

Rainy days 10 days  

Humidity 67% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 205 hours *  

Percentage Sunshine 59% *  

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

What to Wear in National Harbor in October

For National Harbor in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in National Harbor in October

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

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 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.