Boston

Massachusetts Weather in September

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

Thinking about venturing to Massachusetts, the United States of America this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Massachusetts in September

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

Temperatures

During the day the temperature is pleasant in Florida at 21°C (70°F) and warm in Springfield at 25°C (77°F). As night falls, temperatures generally drop to 12°C (54°F) in Springfield and 10°C (50°F) in Florida.

To explore the conditions in Massachusetts, the United States of America in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Provincetown (P-town) with an average of 74 mm (2.9 in) to high rainfall in Greenfield with 122 mm (4.8 in). Looking at the climate data spanning the last 30 years, this month usually has the lowest rainfall in Boston, marking it as the year's driest month.

Average sunshine

Most destinations offer generous amounts of sunshine this September. For example, Boston gets approximately 238 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Massachusetts by month

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

Best Places to Visit in Massachusetts in September

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

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 Massachusetts

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

Temperature range in Massachusetts (September)

Precipitation variation in Massachusetts (September)

Boston

In September Boston generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
27°C (81°F)
24°C (75°F)
17°C (63°F)
Min temperature
18°C (64°F)
15°C (59°F)
9°C (48°F)
Monthly sun hours
280 hours
238 hours
207 hours
Monthly rainfall
95 mm (3.7 in)
79 mm (3.1 in)
111 mm (4.4 in)
Monthly rainy days
10 days
9 days
12 days
Weather conditions

Rockport

In September Rockport generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
24°C (75°F)
22°C (72°F)
15°C (59°F)
Min temperature
17°C (63°F)
14°C (57°F)
8°C (46°F)
Monthly sun hours
280 hours
238 hours
207 hours
Monthly rainfall
86 mm (3.4 in)
79 mm (3.1 in)
116 mm (4.6 in)
Monthly rainy days
9 days
9 days
12 days
Weather conditions

Gloucester

In September Gloucester generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
25°C (77°F)
22°C (72°F)
16°C (61°F)
Min temperature
17°C (63°F)
14°C (57°F)
8°C (46°F)
Monthly sun hours
280 hours
238 hours
207 hours
Monthly rainfall
91 mm (3.6 in)
80 mm (3.1 in)
118 mm (4.6 in)
Monthly rainy days
9 days
9 days
12 days
Weather conditions

Cambridge

In September Cambridge generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 13°C (55°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
28°C (82°F)
24°C (75°F)
17°C (63°F)
Min temperature
17°C (63°F)
13°C (55°F)
7°C (45°F)
Monthly sun hours
280 hours
238 hours
207 hours
Monthly rainfall
94 mm (3.7 in)
81 mm (3.2 in)
115 mm (4.5 in)
Monthly rainy days
10 days
9 days
12 days
Weather conditions

Hyannis

In September Hyannis generally has high temperatures with maximum daytime temperatures around 23°C (73°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
26°C (79°F)
23°C (73°F)
17°C (63°F)
Min temperature
18°C (64°F)
14°C (57°F)
9°C (48°F)
Monthly sun hours
278 hours
231 hours
205 hours
Monthly rainfall
79 mm (3.1 in)
104 mm (4.1 in)
116 mm (4.6 in)
Monthly rainy days
9 days
8 days
12 days
Weather conditions

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Boston 24°C (75°F) 15°C (59°F) 79 mm (3.1 in)
Rockport 22°C (72°F) 14°C (57°F) 79 mm (3.1 in)
Gloucester 22°C (72°F) 14°C (57°F) 80 mm (3.1 in)
Cambridge 24°C (75°F) 13°C (55°F) 81 mm (3.2 in)
Hyannis 23°C (73°F) 14°C (57°F) 104 mm (4.1 in)
West Yarmouth 23°C (73°F) 14°C (57°F) 100 mm (3.9 in)

Massachusetts weather in September: frequently asked questions

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

In September, Massachusetts, the United States of America generally has perfect weather conditions. Boston sees daytime temperatures near 24°C (75°F), with nights cooling to roughly 15°C (59°F).

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

Average temperatures in Massachusetts, the United States of America during September range from a nighttime low near 15°C (59°F) to a daytime high around 24°C (75°F) in Boston.

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

Rain is generally moderate to light in Massachusetts, the United States of America during September, with Boston averaging close to 79 mm (3.1 in).

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

We consider September to be one of the best times to travel to Massachusetts, the United States of America. Typically, the climate in Boston is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in August and September offering mostly perfect weather in Boston. The weather in January, February, March and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Massachusetts.

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.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.