Climate and monthly weather forecast
Falmouth, Antigua and Barbuda

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The climate of Falmouth

Nestled in the tropical heartland of Antigua and Barbuda, Falmouth boasts a tropical rainforest climate. This claim is substantiated by the Köppen climate classification of "Af". The climate remains highly consistent throughout every month, characterized by high temperatures and a significant amount of precipitation.

Across twelve months, the temperatures fluctuate subtly between the high 26.1°C (79°F) and low 27.3°C (81.1°F). The humidity remains consistently high, hovering around 75% to 78%. The high temperatures combined with the humidity result in a warm, oftentimes even stifling, climate. However, the presence of gentle yet consistent winds with speeds varying from 20.4km/h (12.7mph) to 26.9km/h (16.7mph) aids in alleviating the constant warmth and adding a touch of coolness to the otherwise tropical temperature.

Rainfall is an integral part of Falmouth’s climate. Precipitation sways from 23mm (0.91") in the drier months to a high of 100mm (3.94") during peak rainfall periods. While it can rain at any given time in the year, the numbers of rainy days fluctuate from 17.7 days to 24.8 days in the wettest periods. During periods of high rainfall, the cloud cover also spikes, reaching a peak of 43%.

The sea, essential to Falmouth's climate and geography, maintains warm temperatures year-round, alternating between 26.3°C (79.3°F) and 29.3°C (84.7°F). Sunlight as well stays unwavering from 6.5 hours to 10.3 hours per day, all year round.

The best time to visit Falmouth

Deciding the best time to visit Falmouth relies on the pursuit of comfortable temperatures and manageable rainfall. Consequently, the months of February and March become ideal. With lower temperatures oscillating from 25°C (77°F) to 26.1°C (79°F), lower rainfall ranging from 23mm (0.91") to 24mm (0.94"), and fewer days of precipitation from 17.7 to 18.3, these months provide a more pleasant and less intense experience of Falmouth's tropical climate.

The worst time to visit Falmouth

The most challenging period to explore Falmouth is undoubtedly during the high rainfall periods which center around September and October. This time witnesses a substantial increase in precipitation, escalating from 88mm (3.46") to a high of 100mm (3.94"). The number of rainy days expands from 23.3 to 23.3 days making outdoor activities less feasible. This period is coupled with higher temperatures ranging from 27.9°C (82.2°F) to 28.5°C (83.3°F), further intensifying the months' climate.

Spring weather in Falmouth

Spring in Falmouth falls in the months from March to May. The season witnesses a subtle rise in the temperature with highs extending from 26.3°C (79.3°F) to 27.3°C (81.1°F) and lows increasing from 25.6°C (78.1°F) to 26.4°C (79.5°F). Precipitation begins to build up from 24mm (0.94") in March to eventually reach 65mm (2.56") in May. Likewise, the number of rainy days starts at 17.7 and gradually increases to 24.1 in May, indicating a vast transition from drier to wetter conditions.

Summer weather in Falmouth

Falmouth's summer, from June to August, brings heightened temperatures and substantial rainfall. Temperatures peak, scaling from a high of 28.2°C (82.8°F) in June to the warmest point of 28.8°C (83.8°F) in August, with lows sweeping from 27°C (80.6°F) to 27.7°C (81.9°F) in the same period. Rainfall stands strong from 57mm (2.24") to a significant surge at 91mm (3.58") in August. A parallel hike happens in the number of rainy days starting from 21.9 in June and reaching 24.3 by the end of summer.

Autumn weather in Falmouth

Autumn months, September to November, provide the highest levels of rainfall. The amount of rain varies from the peak of 100mm (3.94") in September to 96mm (3.78") in November. A consistent number of rainy days ranging from 23.3 to 23.2 contributes to a predominantly wet, damp season. Meanwhile, temperatures tumb between the peak of 28.8°C (83.8°F) to 28°C (82.4°F) on the higher end and a little drop from 27.7°C (81.9°F) to 26.9°C (80.4°F) on the lower end.

Winter weather in Falmouth

Winter prevails during December and January in Falmouth. Despite the slightly lower temperatures which range from highs of 28°C (82.4°F) to 26.1°C (79°F) and lows of 26.9°C (80.4°F) to 25°C (77°F), Winter remains quite warm. Rainfall and the number of rainy days decrease noticeably, dropping down to 56mm (2.2") and 23.5 days in December, making the season substantially dryer than the rest of the year.

Weather in January

January in Falmouth, Antigua and Barbuda features a combination of accommodating temperatures and moderate rainfall. Unsurprisingly, January marks the onset of the island's dry season, promising fewer rainy days. This period presents a great opportunity to enjoy the outdoor activities Falmouth is known for. Weather in January »

Weather in February

February continues the dry season trend set at the start of the year. With less rainfall compared to January, moving from 34mm (1.34") to 23mm (0.91"), Falmouth usually enjoys sunnier days. As the daily sunshine hours increase, visitors find more time to engage in outdoor escapades, from morning hikes to late night strolls. Weather in February »

Weather in March

March brings a subtle shift in the weather pattern with slightly higher night temperatures. March stays within the dry season period, maintaining a relatively low rainfall pattern. The city remains in the grips of the long dry days, making sightseeing and other recreational activities more feasible. Weather in March »

Weather in April

April earmarks the end of the dry season in Falmouth with an increase in rainfall from 24mm (0.94") to 37mm (1.46"). Despite an uptick in humidity levels and cloud cover, temperatures remain stable, providing ample warmth. Water enthusiasts find solace as sea temperatures cross the 27°C (80.6°F) mark. Weather in April »

Weather in May

Transitioning into May, the weather in Falmouth takes a dramatic turn with rainfall surging to 65mm (2.56"). This marks the advent of the rainy season, yet temperatures remain relatively stable, providing a sweet spot for outdoor activities. Weather in May »

Weather in June

June brings a mixed weather bag to Falmouth. Contrary to expectation, June experiences a slight drop in rainfall from May's 65mm (2.56") to 57mm (2.24"). Despite entering the hurricane season, the sea conditions remain relatively calm. Weather in June »

Weather in July

July is typically the peak of summer in Falmouth. The temperatures soar to 28.3°C (82.9°F), the highest they get all year in the city. Yet, sea temperatures are at a comfortable 28.7°C (83.7°F), making it an ideal time for swimming. Weather in July »

Weather in August

August continues the trend of elevated temperatures in Falmouth, amongst the highest in the annual cycle. The sea temperature peaks at 29°C (84.2°F), presenting idyllic conditions for water sports. Although August experiences significant rainfall, it does not hinder the city's vibrant summer spirit. Weather in August »

Weather in September

As September rolls in, Falmouth experiences a further increase in rainfall, reaching up to 88mm (3.46"). Yet, this increase does not mar the city's outdoor lifestyle, thanks to generous daylight hours. The weather continues to stay warm with comforting sea temperatures. Weather in September »

Weather in October

Moving into October, Falmouth sees the highest rainfall of the year at 100mm (3.94"). Coupled with warm temperatures, this results in a humid ambiance. Despite the heavier rain, the city continues to shine under abundant daylight hours, aligning with Falmouth's tropical climate. Weather in October »

Weather in November

November presents slight relief in Falmouth as rainfall drops to 96mm (3.78"). Temperature fluctuations between day and night are minimal, making for consistent weather. Unwavering sea temperatures keep the city's beaches as appealing as ever. Weather in November »

Weather in December

As December ushers in, Falmouth aligns with winter season characteristics. A decrease in rainfall to 56mm (2.2") marks the full advent of the dry season. The sea temperature dips to 27.4°C (81.3°F) on average, a contrast to the heated summer months. Weather in December »
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Frequently asked questions

What are the least humid months in Falmouth?

The months with the lowest humidity in Falmouth are January through March, with an average relative humidity of 75%.

How many days does it rain in Falmouth?

In Falmouth, Antigua and Barbuda, during the entire year, the rain falls for 265.2 days and collects up to 744mm (29.29") of precipitation.

What is the month with the highest UV index in Falmouth?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Falmouth.

When is the lowest UV index in Falmouth?

The months with the lowest UV index in Falmouth, Antigua and Barbuda, are January through December, with an average maximum UV index of 7.

What is the driest month in Falmouth?

February is the month with the least rainfall in Falmouth, Antigua and Barbuda. Rain falls for 18.3 days and accumulates 23mm (0.91") of precipitation.

What month is the sea coldest in Falmouth?

With an average sea temperature of 26.3°C (79.3°F), February is the month with the coldest seawater.

What is the coldest time of year in Falmouth?

The coldest time of the year is March, with temperatures averaging a high of 25.9°C (78.6°F) and a low of 25°C (77°F).

What is the month with the most sunshine in Falmouth?

The months with the most sunshine are April, August and September, with an average of 10.3h of sunshine.

What is the most humid month in Falmouth?

The months with the highest humidity are May, July and August, with an average relative humidity of 78%.

When are the longest days in Falmouth?

June has the longest days of the year, with an average of 13h and 6min of daylight.

What are the warmest months in Falmouth?

Falmouth experiences its highest temperatures in September, with an average peak of 28.8°C (83.8°F) and a low of 27.7°C (81.9°F).

When is the sea warmest in Falmouth?

With an average sea temperature of 29.3°C (84.7°F), September is the month with the warmest seawater in Falmouth, Antigua and Barbuda.

What is the rainiest month in Falmouth?

The month with the most rainfall is October, when the rain falls for 23.3 days and typically aggregates up to 100mm (3.94") of precipitation.

What are the months with the least sunshine in Falmouth?

The months with the least sunshine in Falmouth are November and December, with an average of 6.5h of sunshine.

What is the month with the shortest days in Falmouth?

December has the shortest days of the year in Falmouth, Antigua and Barbuda, with an average of 11h and 6min of daylight.

Is there Daylight Saving Time (DST) in Falmouth?

Falmouth does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.

Average temperature
Falmouth, Antigua and Barbuda

Average temperature - Falmouth, Antigua and Barbuda

The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is March (25.9°C).

The month with the highest average low temperature is October (27.9°C).
The coldest months (with the lowest average low temperature) are February and March (25°C).

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Average pressure
Falmouth, Antigua and Barbuda

Average pressure - Falmouth, Antigua and Barbuda

The month with the highest atmospheric pressure is June (1016.3mbar).
The months with the lowest atmospheric pressure are October and November (1012.6mbar).

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Average wind speed
Falmouth, Antigua and Barbuda

Average wind speed - Falmouth, Antigua and Barbuda

The windiest month (with the highest average wind speed) is July (26.9km/h).
The calmest month (with the lowest average wind speed) is October (20.4km/h).

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Average humidity
Falmouth, Antigua and Barbuda

Average humidity - Falmouth, Antigua and Barbuda

The months with the highest relative humidity are May, July and August (78%).
The months with the lowest relative humidity are January, February and March (75%).

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Average rainfall
Falmouth, Antigua and Barbuda

Average rainfall - Falmouth, Antigua and Barbuda

The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is February (23mm).

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Average rainfall days
Falmouth, Antigua and Barbuda

Average rainfall days - Falmouth, Antigua and Barbuda

The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is March (17.7 days).

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Average sea temperature
Falmouth, Antigua and Barbuda

Average sea temperature - Falmouth, Antigua and Barbuda

The best month for swimming (with the highest average sea temperature) is September (29.3°C).
The coldest month (with the lowest average sea temperature) is February (26.3°C).

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Average daylight / Average sunshine
Falmouth, Antigua and Barbuda

Average daylight / Average sunshine - Falmouth, Antigua and Barbuda

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).

The months with the most sunshine are April, August and September (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

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Average sunshine days
Falmouth, Antigua and Barbuda

Average sunshine days - Falmouth, Antigua and Barbuda

The month with the most sunshine days is March (9.1 days).
The month with the least sunshine days is July (0.6 days).

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Average UV index
Falmouth, Antigua and Barbuda

Average UV index - Falmouth, Antigua and Barbuda

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover
Falmouth, Antigua and Barbuda

Average cloud cover - Falmouth, Antigua and Barbuda

The months with the most cloud cover are May, June and July (Cloud cover 43).
The month with the least cloud cover is February (Cloud cover 34).

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Average visibility
Falmouth, Antigua and Barbuda

Average visibility - Falmouth, Antigua and Barbuda

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Falmouth, Antigua and Barbuda

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