Climate and monthly weather forecast
South Duxbury, MA

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Weather in January

January, like December, in South Duxbury, Massachusetts, is an icy winter month, with temperature in the range of an average high of 35.8°F (2.1°C) and an average low of 26.2°F (-3.2°C). January, with its high-temperature average of 35.8°F (2.1°C) and a low-temperature average of 26.2°F (-3.2°C), is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in South Duxbury, Massachusetts, with an average temperature fluctuating between 37.6°F (3.1°C) and 27.3°F (-2.6°C). As South Duxbury steps into February, the average high-temperature holds at a still cold 37.6°F (3.1°C), hinting at a minor fluctuation from the prior month. Weather in February »

Weather in March

March, the first month of the spring in South Duxbury, is also a wintry month, with an average temperature varying between 33.1°F (0.6°C) and 42.1°F (5.6°C). Transitioning into March, South Duxbury experiences an average high-temperature of a still icy 42.1°F (5.6°C), marking a minor shift from the preceding month. Weather in March »

Weather in April

April is a cool spring month in South Duxbury, Massachusetts, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 50.9°F (10.5°C). South Duxbury's transition into April brings a slight rise in the average high-temperature, moving from a cold 42.1°F (5.6°C) in March to a fresh 50.9°F (10.5°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in South Duxbury, Massachusetts, with temperature in the range of an average low of 50°F (10°C) and an average high of 60.3°F (15.7°C). With the transition into May, South Duxbury experiences an increase in average high-temperatures, moving up from a cool 50.9°F (10.5°C) in April to a moderate 60.3°F (15.7°C). Weather in May »

Weather in June

June, the first month of the summer in South Duxbury, is a pleasant month, with an average temperature varying between 58.5°F (14.7°C) and 68.4°F (20.2°C). Observing a minor shift, the average high-temperature during June adjusts from May's refreshing 60.3°F (15.7°C) to a pleasant 68.4°F (20.2°C). Weather in June »

Weather in July

July in South Duxbury, Massachusetts, is a moderately hot summer month, with temperature in the range of an average low of 65.8°F (18.8°C) and an average high of 75.7°F (24.3°C). During July and August, South Duxbury registers its highest temperatures, averaging a high of 75.7°F (24.3°C). Weather in July »

Weather in August

August, the last month of the summer in South Duxbury, is also a moderately hot month, with an average temperature fluctuating between 65.8°F (18.8°C) and 75.7°F (24.3°C). The warmest period falls in July and August, when the average high-temperature reaches 75.7°F (24.3°C). Weather in August »

Weather in September

September, the first month of the autumn in South Duxbury, is still a pleasant month, with an average temperature ranging between max 69.3°F (20.7°C) and min 59.9°F (15.5°C). South Duxbury's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 75.7°F (24.3°C) to an agreeable 69.3°F (20.7°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in South Duxbury, Massachusetts, with an average temperature varying between 50.9°F (10.5°C) and 60.1°F (15.6°C). Welcoming October, South Duxbury observes a shift in the average high-temperature, falling from September's agreeable 69.3°F (20.7°C) to a refreshing 60.1°F (15.6°C). Weather in October »

Weather in November

November, the last month of the autumn in South Duxbury, is also a frosty month, with temperature in the range of an average low of 41°F (5°C) and an average high of 49.8°F (9.9°C). South Duxbury's November weather shows a moderate shift in high-temperatures, falling from October's mild 60.1°F (15.6°C) to a frosty 49.8°F (9.9°C). Weather in November »

Weather in December

December, the first month of the winter in South Duxbury, is also an icy month, with an average temperature fluctuating between 41.7°F (5.4°C) and 32.9°F (0.5°C). December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's chilly 49.8°F (9.9°C) to a cold 41.7°F (5.4°C). Weather in December »
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in South Duxbury?

January, known for its average high temperature of 35.8°F (2.1°C) and an average low temperature of 26.2°F (-3.2°C), is the coldest month.

How many days does it rain?

Throughout the year, there are 120.2 rainfall days, and 12.24" (311mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through April, November and December.

How much does it snow?

Throughout the year, there are 21 snowfall days, and 3.54" (90mm) of snow is accumulated.

What is the month with the lowest UV index in South Duxbury?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the driest month?

February is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.75" (19mm) of precipitation.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 5.8 days and accumulates 0.98" (25mm) of snow.

What months are the ocean coldest?

February and March, with an average ocean temperature of 38.8°F (3.8°C), are months with the coldest seawater.

What are the months with the least sunshine?

February and December, with an average of 4.7h of sunshine, are months with the least sunshine.

What are the least humid months?

The months with the lowest humidity are March and November, with an average relative humidity of 74%.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow?

In South Duxbury, snow does not fall in May through October.

What is the most humid month?

The months with the highest humidity are June and July, with an average relative humidity of 80%.

When are the longest days?

With an average of 15h and 12min of daylight, June has the longest days of the year.

What part of the year is the hottest in South Duxbury?

Temperatures reach their maximum during July and August, recording an average high-temperature of 75.7°F (24.3°C).

What is the rainiest month?

July is the month with the most rainfall in South Duxbury. Rain falls for 13.2 days and accumulates 1.34" (34mm) of precipitation.

What is the month with the highest UV index?

July and August, with an average maximum UV index of 6, are months with the highest UV index.

What is the month with the warmest ocean?

With an average ocean temperature of 67.6°F (19.8°C), August is the month with the warmest seawater.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.7h of sunshine.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

Average temperature
South Duxbury, MA

Average temperature - South Duxbury, MA

The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is January (35.8°F).

The months with the highest average low temperature are July and August (65.8°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure
South Duxbury, MA

Average pressure - South Duxbury, MA

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
South Duxbury, MA

Average wind speed - South Duxbury, MA

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

Average humidity
South Duxbury, MA

Average humidity - South Duxbury, MA

The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March and November (74%).

Average rainfall
South Duxbury, MA

Average rainfall - South Duxbury, MA

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is February (0.75").

Average rainfall days
South Duxbury, MA

Average rainfall days - South Duxbury, MA

The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is February (6.3 days).

Average snowfall
South Duxbury, MA

Average snowfall - South Duxbury, MA

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
South Duxbury, MA

Average snowfall days - South Duxbury, MA

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature
South Duxbury, MA

Average sea temperature - South Duxbury, MA

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).

Average daylight / Average sunshine
South Duxbury, MA

Average daylight / Average sunshine - South Duxbury, MA

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

Average sunshine days
South Duxbury, MA

Average sunshine days - South Duxbury, MA

The month with the most sunshine days is December (18.9 days).
The month with the least sunshine days is July (15.7 days).

Average UV index
South Duxbury, MA

Average UV index - South Duxbury, MA

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
South Duxbury, MA

Average visibility - South Duxbury, MA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

South Duxbury, Massachusetts, USA

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