Annapolis Junction Weather in September

With daytime temperatures of 26°C (79°F) and nighttime lows of 15°C (59°F), September in Annapolis Junction brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 112 mm (4.4 in) falls on average.

Rainfall in Annapolis Junction in September

Typically, you can expect about 9 days of rain this month, with 112 mm (4.4 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Annapolis Junction in September

Annapolis Junction in September gets highs of 26°C (79°F) during the day and drops to 15°C (59°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 15°C (59°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 Annapolis Junction in September

The city usually sees around 225 hours of sunlight, indicating many sunny days — a great month for sightseeing.

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

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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 Annapolis Junction's climate page.

Annapolis Junction Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 30%  

Precipitation 112 mm (4.4 in)  

Rainy days 9 days  

Humidity 68% *  

Sunshine 225 hours *  

Percentage Sunshine 60% *  

* Data from: Washington DC, the United States of America (37 KM, 23 Miles).

What to Wear in Annapolis Junction in September

Warm temperatures in September 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Annapolis Junction in September

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 Annapolis Junction's climate page.

More climate data for Annapolis Junction

Temperature Rainfall Sunshine Humidity

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