National Harbor, MD weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in National Harbor now
Loading the National Weather Service forecast…
National Harbor weather by the hour
National Harbor weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of National Harbor.
This week in National Harbor
Sunrise, sunset and moon in National Harbor
What is the weather usually like in National Harbor?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 88°F average high
- Januarycoldest month · 27°F average low
- 46.8 inprecipitation per year · 1,189 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit National Harbor: May–June and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station OXON HILL, MD US (USC00186800), adjusted for the elevation of National Harbor.
National Harbor weather month by month
Sunrise and sunset in National Harbor through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:23 AM | 5:11 PM | 9 h 48 min |
| February | 6:57 AM | 5:46 PM | 10 h 49 min |
| March | 7:17 AM | 7:16 PM | 11 h 58 min |
| April | 6:29 AM | 7:46 PM | 13 h 16 min |
| May | 5:53 AM | 8:14 PM | 14 h 20 min |
| June | 5:40 AM | 8:36 PM | 14 h 55 min |
| July | 5:54 AM | 8:34 PM | 14 h 39 min |
| August | 6:20 AM | 8:04 PM | 13 h 43 min |
| September | 6:48 AM | 7:17 PM | 12 h 29 min |
| October | 7:16 AM | 6:31 PM | 11 h 14 min |
| November | 6:49 AM | 4:56 PM | 10 h 6 min |
| December | 7:17 AM | 4:48 PM | 9 h 31 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in National Harbor?
National Harbor has a humid subtropical climate. The warmest month is July, with an average high of 88°F (31°C), and the coldest is January, with average lows of 27°F (-3°C).
It gets about 46.8 inches (1,189 mm) of precipitation a year. The wettest month is July and the driest is February.
The best time to visit National Harbor is May–June and September–October. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about National Harbor
Weather in towns near National Harbor
Questions about the weather in National Harbor
What is the hottest month in National Harbor?
July, with an average high of 88°F (31°C).
What is the coldest month in National Harbor?
January, with an average low of 27°F (-3°C).
How much does it rain in National Harbor?
About 46.8 inches (1,189 mm) a year; the wettest month is July.
Does it snow in National Harbor?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit National Harbor?
May–June and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does National Harbor have?
Humid subtropical (Köppen Cfa).
What is the weather like in National Harbor in November?
Highs average 57°F and lows 38°F, with about 3.1 inches of precipitation.
What time is sunrise in National Harbor?
Around 6:49 AM in mid-November, and sunset around 4:56 PM. Today’s exact times are shown above.
Where does this National Harbor weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of National Harbor.
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