Ocean City

Maryland Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Maryland, the United States of America in September.

Planning a journey to Maryland, the United States of America this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Maryland in September

Maryland, the United States of America is a region in the United States of America. September in Maryland generally has temperatures that range from pleasant to warm, with precipitation levels ranging from moderate to high.

Temperatures

The average highest temperatures fluctuate between pleasant in McHenry at 21°C (70°F) to warm in Pocomoke City at 27°C (81°F). Nighttime temperatures generally drop to 16°C (61°F) in Pocomoke City and 11°C (52°F) in McHenry.

For specific regional insights in Maryland, the United States of America, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Oakland with an average of 75 mm (3 in) to high rainfall in Prince Frederick with 146 mm (5.7 in).

Explore Maryland by month

Pick a month to see the average temperature, rainfall and sunshine in Maryland — and find the best time to visit. (based on Ocean City)

Best Places to Visit in Maryland in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Maryland.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Maryland

What is the weather like in September for some of the most popular destinations in Maryland, the United States of America?

Temperature range in Maryland (September)

Precipitation variation in Maryland (September)

Ocean City

In September Ocean City generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
29°C (84°F)
26°C (79°F)
21°C (70°F)
Min temperature
20°C (68°F)
18°C (64°F)
11°C (52°F)
Monthly rainfall
117 mm (4.6 in)
118 mm (4.6 in)
133 mm (5.2 in)
Monthly rainy days
9 days
10 days
10 days
Weather conditions

Baltimore

In September Baltimore generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 17°C (63°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
27°C (81°F)
20°C (68°F)
Min temperature
21°C (70°F)
17°C (63°F)
11°C (52°F)
Monthly sun hours
262 hours
225 hours
205 hours
Monthly rainfall
115 mm (4.5 in)
123 mm (4.8 in)
137 mm (5.4 in)
Monthly rainy days
11 days
9 days
10 days
Weather conditions

Annapolis

In September Annapolis generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
29°C (84°F)
25°C (77°F)
19°C (66°F)
Min temperature
21°C (70°F)
18°C (64°F)
11°C (52°F)
Monthly sun hours
262 hours
225 hours
205 hours
Monthly rainfall
110 mm (4.3 in)
110 mm (4.3 in)
143 mm (5.6 in)
Monthly rainy days
10 days
9 days
11 days
Weather conditions

Frederick

In September Frederick generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 14°C (57°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
27°C (81°F)
20°C (68°F)
Min temperature
18°C (64°F)
14°C (57°F)
8°C (46°F)
Monthly sun hours
262 hours
225 hours
205 hours
Monthly rainfall
80 mm (3.1 in)
113 mm (4.4 in)
128 mm (5 in)
Monthly rainy days
11 days
10 days
11 days
Weather conditions

Linthicum

In September Linthicum generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 16°C (61°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
26°C (79°F)
20°C (68°F)
Min temperature
20°C (68°F)
16°C (61°F)
9°C (48°F)
Monthly sun hours
262 hours
225 hours
205 hours
Monthly rainfall
115 mm (4.5 in)
120 mm (4.7 in)
144 mm (5.7 in)
Monthly rainy days
11 days
9 days
10 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Maryland, in the United States of America.

Popular cities in September

Day & night temperatures, rainfall and average weather in Maryland in September.

City Weather Day temp Night temp Rainfall
Ocean City 26°C (79°F) 18°C (64°F) 118 mm (4.6 in)
Baltimore 27°C (81°F) 17°C (63°F) 123 mm (4.8 in)
Annapolis 25°C (77°F) 18°C (64°F) 110 mm (4.3 in)
Frederick 27°C (81°F) 14°C (57°F) 113 mm (4.4 in)
Linthicum 26°C (79°F) 16°C (61°F) 120 mm (4.7 in)
Hagerstown 26°C (79°F) 14°C (57°F) 86 mm (3.4 in)

Maryland weather in September: frequently asked questions

What is the weather like in Maryland, the United States of America in September?

September in Maryland, the United States of America brings pleasant weather. In Ocean City, daytime temperatures are typically around 26°C (79°F) and nighttime lows hover near 18°C (64°F).

What is the average temperature in Maryland, the United States of America in September?

Average temperatures in Maryland, the United States of America during September range from a nighttime low near 18°C (64°F) to a daytime high around 26°C (79°F) in Ocean City.

Does Maryland, the United States of America get a lot of rain in September?

Ocean City typically receives notable rainfall in September, about 118 mm (4.6 in) on average across Maryland, the United States of America.

Is September a Good Time to Visit Maryland, the United States of America?

Given the typically pleasant weather conditions in Ocean City, September might be a good time to visit Maryland, the United States of America.

Generally speaking, May and July provide perfect weather in Ocean City. On the other hand, the weather in January, February and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Maryland.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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