Climate and monthly weather forecast
Falmouth, MA

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The climate of Falmouth

Located in the state of Massachusetts, USA, Falmouth is subjected to a humid subtropical climate with no dry season, as categorized under the Köppen climate classification. The geographical positioning of Falmouth offers it a climate that sees variations in several weather parameters throughout the year.

The average high temperature in Falmouth sees an annual swing from 37.9°F (3.3°C) in January to a peak of 73.9°F (23.3°C) in August. There is a corresponding rise and fall in the minimum temperature as well, dipping to 29.8°F (-1.2°C) in January and climbing to 68.5°F (20.3°C) in August. The humidity, relatively balanced throughout the year, fluctuates slightly between a low of 74% in November and a high of 83% in July.

Falmouth witnesses light rainfalls consistently across the year, with the quantities fluctuating from 0.31" (8mm) in July, August, and September, to a maximum of 0.71" (18mm) in October. As per the number of rainy days, it varies from a minimum of 4.6 days in September to a maximum of 7.7 days in July. Snowfall is minimal and restricted to the colder months between January and March, with December recording a little snowfall.

The sea temperature varies from 38.2°F (3.4°C) in February to 68.4°F (20.2°C) in August, which corresponds to the variations in the land temperatures. The amount of daylight that Falmouth receives ranges from a minimum of 9.2 hours in December to a maximum of 15.1 hours in June. The town similarly sees a fluctuation in the sunshine hours from low 4.7 hours in December to high 10.7 hours in August.

The best time to visit Falmouth

The most favorable time to visit Falmouth is during the summer months, from June to August. During this period, the region experiences the highest temperatures, rising to 73.4°F (23°C) to 73.9°F (23.3°C), coupled with the highest sea temperatures, peaking at 68.4°F (20.2°C) in August. Also, these months offer the highest amount of daylight, up to 15.1 hours in June, and the maximum sunshine, up to 10.7 hours in August.

The worst time to visit Falmouth

Visiting Falmouth during the winter months of December to February could be unfavorable for some due to the cold weather conditions. During this time, the region experiences the lowest temperatures, dropping to 29.8°F (-1.2°C) in January, and the lowest sea temperature reaching approximately 38.2°F (3.4°C) in February. Also, these months have the shortest daylight hours, approximately 9.2 hours in December.

Spring weather in Falmouth

The spring in Falmouth, from March to May, witnesses a gradual increase in temperature from 41.5°F (5.3°C) to 57°F (13.9°C). The sea temperature also shows a similar rise, from 38.6°F (3.7°C) to 50.4°F (10.2°C). The rainfall during these months is quite consistent, between 0.39" (10mm) to 0.51" (13mm), with the number of rainy days peaking in April at 6.9 days.

Summer weather in Falmouth

The summer months from June to August in Falmouth are characterized by temperatures ranging from 65.5°F (18.6°C) to 73.9°F (23.3°C). The sea temperature also peaks during this time, reaching a high of 68.4°F (20.2°C) in August. The rainfall is relatively low, ranging from 0.31" (8mm) in July and August to slightly higher 0.47" (12mm) in June.

Autumn weather in Falmouth

In autumn, from September to November, Falmouth experiences a gradual drop in temperature, moving from 68.4°F (20.2°C) to 50.9°F (10.5°C). The sea temperature also follows a decreasing trend, shifting from 65.8°F (18.8°C) to 53.2°F (11.8°C). Rainfall is more prominent in these months, peaking at 0.71" (18mm) in October.

Winter weather in Falmouth

December to February marks the winter period in Falmouth. During these months, the temperature falls significantly, from 43.7°F (6.5°C) in December to 37.9°F (3.3°C) in January. The sea temperature also reduces and reaches the 38.2°F (3.4°C) mark in February. The rainfall is comparatively less during winter, with maximum rain recorded as 0.67" (17mm) in December. During this time, the town also witnesses snowfall with 0.24" (6mm) in December.

Weather in January

The new year in Falmouth, Massachusetts greets inhabitants with chilliness typically found in the heart of winter. The month of January showcases a characteristic sharp decline in temperature and this month is no exception with the lowest temperature recorded at 29.8°F (-1.2°C). Weather in January »

Weather in February

The grip of winter is in full force throughout February in Falmouth, Massachusetts, with the cold winds whipping across the landscapes. A slight upliftment in the temperature can be noticed, reaching 30°F (-1.1°C) at the lowest point. Weather in February »

Weather in March

The arrival of spring in March is signified by increasingly milder weather in Falmouth, Massachusetts. Rising temperatures become evident, hitting an average of 34.7°F (1.5°C) at their lowest. The last vestiges of snow can be seen in the early stages of the month, but not for long. Weather in March »

Weather in April

Facing towards the oncoming spring, April in Falmouth, Massachusetts ushers in pleasanter atmospheric conditions. The temperatures record a noticeable increase, reaching a comfortable 42.6°F (5.9°C) at their lowest. With the snow and chills of winter now a memory, spring graces the town with a significant increase in rainfall. Weather in April »

Weather in May

The embrace of spring in May brings about warm and refreshing temperatures in Falmouth, Massachusetts. The rise in temperature continues, soaring to 51.3°F (10.7°C) at the coldest, indicating a significant leap from the toddler months of the year. Weather in May »

Weather in June

Entering the magnificent summer season, June in Falmouth, Massachusetts offers inviting weather conditions. The month records temperatures shooting up to 60.1°F (15.6°C) at their lowest, paving the way to the first substantial heat of the year. Weather in June »

Weather in July

Standing at the pinnacle of summer, July in Falmouth, Massachusetts presents the warmest conditions of the year. The temperatures touch an annual high, with the hottest day falling in this month at 73.4°F (23°C). Despite the heightened heat, the high relative humidity embraces the town, adding a unique characteristic to the July weather. Weather in July »

Weather in August

Bathing in the remnants of summer heat, August in Falmouth, Massachusetts provides pleasant warm conditions. Temperatures linger at peak summertime warmth, reaching previously unheard details at 68.5°F (20.3°C). Despite the prevailing heat, a subtle reduction in temperature can be noted when compared to July. Weather in August »

Weather in September

With the arrival of autumn in September, Falmouth, Massachusetts begins to feel a drop in temperature. Experiencing a notable cooling trend, the lowest temperature recedes to 62.4°F (16.9°C). The shift in climate transforms the town into a vibrant color palette as the leaves on the trees begin to change. Weather in September »

Weather in October

October in Falmouth, Massachusetts accompanies chillier season of autumn, bringing with it notable weather changes. The drop in temperature becomes more apparent as the month progresses, with the lowest recorded at 54.1°F (12.3°C). Weather in October »

Weather in November

With the winter season drawing nearer, November in Falmouth, Massachusetts witnesses a range of cooler temperatures. The fall in temperature is noticeable, declining to a chilly 44.2°F (6.8°C). The nearing colder weather sees a decrease in daylight and sunshine, signaling the impending arrival of winter. Weather in November »

Weather in December

Welcoming the frosty winter season, December in Falmouth, Massachusetts heralds a plunge in temperature. The scenario concerning temperature changes drastically with the lowest hitting 35.8°F (2.1°C). The colder winter weather leads to a contraction of daylight hours, with the town experiencing fewer hours of sunshine. Weather in December »
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Frequently asked questions

What part of the year is the coldest in Falmouth?

The month of January sees the average lowest temperatures, reaching 37.9°F (3.3°C) at the peak and 29.8°F (-1.2°C) at the low.

How much does it rain in Falmouth?

In Falmouth, during the entire year, the rain falls for 69.4 days and collects up to 5.31" (135mm) of precipitation.

When does it snow in Falmouth?

Months with snowfall in Falmouth are January through March and December.

How much does it snow in Falmouth?

In Falmouth, Massachusetts, during the entire year, snow falls for 12.8 days and aggregates up to 0.67" (17mm) of snow.

What are the months with the lowest UV index in Falmouth?

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

When is the ocean coldest in Falmouth?

February is the month with the coldest seawater in Falmouth, Massachusetts, with an average ocean temperature of 38.1°F (3.4°C).

What are the months with the least sunshine in Falmouth?

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

When is Daylight Saving Time (DST) in Falmouth?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Falmouth, 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 Falmouth?

In Falmouth, snow does not fall in April through November.

When are the longest days in Falmouth?

June has the longest days of the year in Falmouth, with an average of 15h and 6min of daylight.

What is the most humid month in Falmouth?

With an average relative humidity of 83%, July is the most humid month in Falmouth, Massachusetts.

What is the driest month in Falmouth?

July through September are months with the least rain in Falmouth when the rain falls for 7.7 days and typically aggregates up to 0.31" (8mm) of rain.

When is the highest UV index in Falmouth?

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

What time of the year is the hottest in Falmouth?

August, having an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 68.5°F (20.3°C), is the warmest month.

What is the month with the warmest ocean in Falmouth?

The month with the warmest seawater is August, with an average ocean temperature of 68.5°F (20.3°C).

What month has the most sunshine in Falmouth?

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

What is the rainiest month in Falmouth?

October is the month with the most rainfall. Rain falls for 6.2 days and accumulates 0.71" (18mm) of precipitation.

What is the least humid month in Falmouth?

With an average relative humidity of 74%, November is the least humid month.

What is the snowiest month in Falmouth?

December is the month with the most snowfall in Falmouth. Snow falls for 2.5 days and accumulates 0.24" (6mm) of snow.

What is the month with the shortest days in Falmouth?

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

Average temperature
Falmouth, MA

Average temperature - Falmouth, MA

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (37.9°F).

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure
Falmouth, MA

Average pressure - Falmouth, 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).

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Average wind speed
Falmouth, MA

Average wind speed - Falmouth, MA

The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.2mph).

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Average rainfall
Falmouth, MA

Average rainfall - Falmouth, MA

The wettest month (with the highest rainfall) is October (0.71").
The driest months (with the least rainfall) are July, August and September (0.31").

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Average rainfall days
Falmouth, MA

Average rainfall days - Falmouth, MA

The month with the highest number of rainy days is July (7.7 days).
The month with the least rainy days is September (4.6 days).

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Average snowfall
Falmouth, MA

Average snowfall - Falmouth, MA

The month with the highest snowfall is December (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days
Falmouth, MA

Average snowfall days - Falmouth, MA

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature
Falmouth, MA

Average sea temperature - Falmouth, MA

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

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Average daylight / Average sunshine
Falmouth, MA

Average daylight / Average sunshine - Falmouth, MA

The month with the longest days is June (Average daylight: 15h and 6min).
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).

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Average sunshine days
Falmouth, MA

Average sunshine days - Falmouth, MA

The month with the most sunshine days is September (23.9 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index
Falmouth, MA

Average UV index - Falmouth, 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).

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Average visibility
Falmouth, MA

Average visibility - Falmouth, 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).

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Falmouth, Massachusetts, USA

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