Climate and monthly weather forecast
Port-aux-Français, French Southern and Antarctic Lands

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The climate of Port-aux-Français

The town of Port-aux-Français, settled amidst the French Southern and Antarctic Lands, endures predominantly Tundra, known in the Köppen climate classification as ET. Consequently, residents witness a series of extreme weather alterations that mirror the raw and inhospitable climate of the Arctic region. An examination of the monthly climatological parameters exposes this stark reality.

Over a typical year in Port-aux-Français, temperatures remain quite chilly, varying between an average minimum of -0.8°C (30.6°F) in the winter months, especially July and August, and an average maximum of 11.5°C (52.7°F) in the month of February. The temperature of the sea also appears relatively cold throughout the year with an average range from 2°C (35.6°F) to 5°C (41°F).

Precipitation in the form of rain is fairly regular with slightly increased rainfall from 65mm (2.56") to 69mm (2.72") in the months of May to September. Concurrently, snowfall days vary from a total of one day observed in January to a peak of 13 days in August. With total rainfall days between 12 and 16, most months have damp days with varying degrees of precipitation.

In terms of sunshine and daylight, there exists wide variation. The least daylight can be seen in July, with only 8.3 hours, while a maximum of 16.2 hours can be expected in December. Sunshine hours, however, extend from 2.4 hours in July to 6 hours in December.

The best time to visit Port-aux-Français

Considering the city's cold, maritime and wet weather pattern throughout the year, there is relatively little fluctuation in climatic conditions. However, for those prepared to bear with the chill, the best time to visit Port-aux-Français may be during the summer months of December to February. During these months, temperatures rise to an average high from 10.2°C (50.4°F) to 11.5°C (52.7°F), which is comparatively warmer. Additionally, December has the longest daylight hours, 16.2 hours, and the highest sunshine hours, 6 hours, contributing to rather favorable conditions for explorers.

The worst time to visit Port-aux-Français

The harshest period in Port-aux-Français occurs in the heart of winter, from June to August. During this period, temperatures drop to an average low from -0.8°C (30.6°F) to 0.9°C (33.6°F), sea temperatures decline to 2°C (35.6°F), and the city witnesses an increase in snowfall days, reaching up to 13 days in August. The daylight hours are also at their least during these months, dipping to a dismal 8.3 hours in July, making this period inhospitable for most visitors.

Spring weather in Port-aux-Français

Spring months in Port-aux-Français, from September to November, witness an increase in temperature from a low of -0.7°C (30.7°F) to a high of 8.4°C (47.1°F). Rainfall during these months registers between 55mm (2.17") to 65mm (2.56"). This period also is accompanied by a gradual increment in the number of daylight hours from 11.7 hours to 15.3 hours, and an increase in sunshine hours from 4.2 hours to 5.8 hours, revealing a more promising season for visitors.

Summer weather in Port-aux-Français

As previously mentioned, the summer period from December to February in Port-aux-Français offers the city’s highest temperatures, with averages between 5°C (41°F) and 11.5°C (52.7°F), along with sea temperatures ranging from 4°C (39.2°F) to 5°C (41°F). Rainfall varies from 46mm (1.81") to 58mm (2.28") with a consistent 16 days of rainfall.

Autumn weather in Port-aux-Français

During the autumn months of March to May, the average temperatures drop from 4.1°C (39.4°F) to 0.9°C (33.6°F), indicating the onset of a colder season. Rainfall during these months is at its highest, reaching up to 69mm (2.72") in the month of May. Although daylight hours vary from 12.4 hours to 9 hours, these months have depressed sunshine hours ranging from 4.7 hours to 3 hours.

Winter weather in Port-aux-Français

The winter season, ranging from June to August, turns Port-aux-Français into an icy wonderland, demonstrating a high occurrence of snowfall from 10 days in June to 13 days in August. Lowest temperatures reach -0.8°C (30.6°F), and with minimal daylight and sunshine hours, the town stays under a chilly spell, thereby limiting outdoor activities.]]

Weather in January

Port-aux-Français in January offers quite stable temperatures, ranging from 4.1°C (39.4°F) to 11.2°C (52.2°F). This first month invites the inhabitants with a mild climate given the longer daylight hours. The city permits residents to enjoy outdoor activities under the winter sun. Weather in January »

Weather in February

Change in weather continues as the city moves from January to February. While the city relishes in similar temperature brackets, mornings and nights get slightly milder. Unlike its predecessor, February witnesses less daylight hours and sunshine, offering a slightly gloomier ambiance. Weather in February »

Weather in March

March marks a transition in weather as the temperatures decline, between 3.7°C (38.7°F) and 10.7°C (51.3°F). As compared to February, the city deals with dark clouds more frequently. The city's exposure to daylight hours and sunshine minimize, allowing the coolness to seep in more deeply. Weather in March »

Weather in April

April sustains this downward trend in temperatures, ranging from 2.6°C (36.7°F) to 8.8°C (47.8°F). This month deals with more rainfall than the previous, with the city receiving 67mm (2.64") precipitation. The lesser hours of daylight combined with a further reduction in sunshine signify the arrival of a more chilling climate. Weather in April »

Weather in May

May is the month when winters hold a firmer grip on Port-aux-Français. The sharp decrease in temperatures and the chill in the wind echoes the heralding of stern winters. Rainfall during this period increases, contributing to the overall gloom in the city. Weather in May »

Weather in June

June creates a colder and wetter atmosphere in the city with an average high temperature of a low 5°C (41°F). Also, the city confronts the highest number of snowfall days in a year during this month. The length of daylight reaching its least during this month allows an even chiller aura. Weather in June »

Weather in July

July perpetuates the tales of cold in Port-aux-Français. The lesser amount of sunshine reaching the city now compliments the chilliness well. This month, the air becomes moisture-laden with increased rainy days and warmer oceans become a distant memory as the sea temperature drops to 2°C (35.6°F). Weather in July »

Weather in August

August is no stranger to the winter chill, maintaining similar temperatures as July. The city continues its tryst with snowfall while the rains decrease marginally from the previous month. The city sees a marginal increase in daylight hours, albeit the sunshine remains limited. Weather in August »

Weather in September

September nudges Port-aux-Français towards a warmer clime. The city starts witnessing increased daylight hours and sunshine, hinting at the advent of a less chilly atmosphere. Rainfall persists much in line with the trends set in August. Weather in September »

Weather in October

October sets the ball rolling for a much comfortable climate in the city. The sharp rise in temperatures further confirms the retreat of winter. Rainfall also takes a step back, creating a balanced atmospheric presence. While snowfall continues its descend, the increased sunshine confirms the beginning of a pleasing season. Weather in October »

Weather in November

November dominates with a mild weather environment, stepping up the warmth quotient from 1.6°C (34.9°F) to 8.4°C (47.1°F). The city greets more sunshine, with upward trekking daylight hours creating a friendly sphere for outdoor activities. Weather in November »

Weather in December

December, while still maintaining a moderate rainfall pattern averaging 58mm (2.28"), ushers in a slightly warmer climate. The increase in temperatures and longer days continue to enhance the pleasantness. The city also witnesses a sharp decrease in snowfall days. Weather in December »
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Frequently asked questions

How many days does it rain in Port-aux-Français?

In Port-aux-Français, French Southern and Antarctic Lands, during the entire year, the rain falls for 169 days and collects up to 708mm (27.87") of precipitation.

When does it snow in Port-aux-Français?

Months with snowfall in Port-aux-Français, French Southern and Antarctic Lands, are January, March through December.

How many days does it snow in Port-aux-Français?

Throughout the year, in Port-aux-Français, French Southern and Antarctic Lands, there are 79 snowfall days.

What month has the most sunshine in Port-aux-Français?

With an average of 6.1h of sunshine, January has the most sunshine of the year.

When is the highest UV index in Port-aux-Français?

The months with the highest UV index are January and December, with an average maximum UV index of 8.

What is the warmest month in Port-aux-Français?

February, noted for its average high-temperature of 11.5°C (52.7°F) and an average low-temperature of 4.3°C (39.7°F), is considered the warmest month in Port-aux-Français.

What is the driest month in Port-aux-Français?

February is the month with the least rainfall in Port-aux-Français, French Southern and Antarctic Lands. Rain falls for 13 days and accumulates 46mm (1.81") of precipitation.

When it does not snow in Port-aux-Français?

February is the only month without snowfall in Port-aux-Français.

When is the sea warmest in Port-aux-Français?

February and March, with an average sea temperature of 5°C (41°F), are months with the warmest seawater.

What is the wettest month in Port-aux-Français?

The month with the most rainfall is May, when the rain falls for 14 days and typically aggregates up to 69mm (2.72") of precipitation.

What is the month with the lowest UV index in Port-aux-Français?

The months with the lowest UV index in Port-aux-Français are May through August, with an average maximum UV index of 1.

What is the month with the shortest days in Port-aux-Français?

June has the shortest days of the year, with an average of 8h and 12min of daylight.

What is the month with the least sunshine in Port-aux-Français?

The month with the least sunshine in Port-aux-Français is June, with an average of 2.4h of sunshine.

What is the coldest month in Port-aux-Français?

July brings the lowest temperatures in Port-aux-Français, French Southern and Antarctic Lands, with an average high of 4.8°C (40.6°F) and an average low of -0.8°C (30.6°F).

What months are the sea coldest in Port-aux-Français?

July through October, with an average sea temperature of 2°C (35.6°F), are months with the coldest seawater.

What is the snowiest month in Port-aux-Français?

The month with the most snowfall days in Port-aux-Français is August, when snow falls for 13 days.

When are the longest days in Port-aux-Français?

December has the longest days of the year in Port-aux-Français, with an average of 16h and 12min of daylight.

Is there Daylight Saving Time (DST) in Port-aux-Français?

Port-aux-Français does not observe Daylight Saving Time (DST). +05 timezone is used throughout the entire year.

Average temperature
Port-aux-Français, French Southern and Antarctic Lands

Average temperature - Port-aux-Français, French Southern and Antarctic Lands

The warmest month (with the highest average high temperature) is February (11.5°C).
The month with the lowest average high temperature is July (4.8°C).

The month with the highest average low temperature is February (4.3°C).
The coldest months (with the lowest average low temperature) are July and August (-0.8°C).

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Average rainfall
Port-aux-Français, French Southern and Antarctic Lands

Average rainfall - Port-aux-Français, French Southern and Antarctic Lands

The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is February (45.5mm).

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Average rainfall days
Port-aux-Français, French Southern and Antarctic Lands

Average rainfall days - Port-aux-Français, French Southern and Antarctic Lands

The months with the highest number of rainy days are January, March, April and December (16 days).
The month with the least rainy days is September (12 days).

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Average snowfall days
Port-aux-Français, French Southern and Antarctic Lands

Average snowfall days - Port-aux-Français, French Southern and Antarctic Lands

The month with the highest number of snowfall days is August (13 days).
The month with the least snowfall days is February (0 days).

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Average sea temperature
Port-aux-Français, French Southern and Antarctic Lands

Average sea temperature - Port-aux-Français, French Southern and Antarctic Lands

The best months for swimming (with the highest average sea temperature) are February and March (5°C).
The coldest months (with the lowest average sea temperature) are July, August, September and October (2°C).

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Average daylight / Average sunshine
Port-aux-Français, French Southern and Antarctic Lands

Average daylight / Average sunshine - Port-aux-Français, French Southern and Antarctic Lands

The month with the longest days is December (Average daylight: 16h and 12min).
The month with the shortest days is June (Average daylight: 8h and 12min).

The month with the most sunshine is January (Average sunshine: 6h and 6min).
The month with the least sunshine is June (Average sunshine: 2h and 24min).

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Average UV index
Port-aux-Français, French Southern and Antarctic Lands

Average UV index - Port-aux-Français, French Southern and Antarctic Lands

The months with the highest UV index are January and December (UV index 8).
The months with the lowest UV index are May, June, July and August (UV index 1).

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Port-aux-Français, French Southern and Antarctic Lands

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