Day
11 °C
Night
3 °C
Sea
12 °C
Precipitation
89 mm
in month
Rainy days
13 days
in month
Daylight
9 hours
average
Sunshine
3 hours
average
Humidity
84 %
We make the most from 40 years of historical weather data to predict the best weather conditions.
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Positioned along the southwestern coast of France, the town of Arcachon is blessed with a temperate climate, offering residents and visitors comfortable weather conditions year-round. Daytime temperatures can range from an average low of 11 °C (51 °F) in the chilly days of January to a balmy peak of 26 °C (78 °F) in the height of summer during August. Nighttime temperatures, on the other hand, see a range from a brisk 3 °C (38 °F) in January to a mild 15 °C (59 °F) in August. Among the months, July stands out as the driest, experiencing a mere 7 days of rainfall, while November tends to be the month with the highest precipitation, aggregating 13 days of rainfall. Seawater temperature varies significantly as well, starting at 12 °C (53 °F) in the coldest month of February and reaching up to 21 °C (70 °F) by late summer in August.
In January, the town of Arcachon experiences its lowest daytime temperatures, averaging 11 °C (51 °F), while the seawater also starts to cool, registering 12 °C (54 °F). A gradual decrease in rainfall is noted, with 89 mm (3.51 in) of precipitation. The highest wind speeds of the year can be felt this month, and humidity levels also hit their peak.
February in Arcachon sees the minimum sea temperature, averaging 12 °C (53 °F), as daytime temperatures begin to increase to an average of 12 °C (53 °F). The trend of decreasing wet days continues, standing at 11 days, and the amount of precipitation also declines, with 70 mm (2.77 in) reported. The hours of sunshine begin to lengthen in February.
With the arrival of March, Arcachon sees a noticeable rise in both daytime and nighttime temperatures, reaching 16 °C (60 °F) and 5 °C (42 °F) respectively. The number of rainy days continues to fall to 11 days, with a concurrent drop in rainfall amounts to 62 mm (2.44 in). The sunshine duration improves further in March.
April marks the period when the sea temperature starts to warm, accompanied by rising daytime temperatures, now averaging 17 °C (63 °F). The amount of rainfall sees a subtle increment as wet days slightly increase to 11 days. The night temperatures continue to improve, and April also features the lowest humidity of the year.
May witnesses a continual rise in the sea temperature in Arcachon, reaching 15 °C (60 °F), paralleled by an increase in daytime temperatures. The onset of a decrease in rainfall is notable, and there is also a slight reduction in the number of rainy days, averaging 10 days. The nights grow warmer, and the sunshine hours extend further.
June's climate in Arcachon is characterized by a stable rise in daytime temperatures, averaging 23 °C (74 °F), and an observable increase in sea temperature, now at 18 °C (65 °F). The trend of dwindling rainfall continues, along with reduced precipitation amounts registered at 53 mm (2.07 in). The duration of sunshine reaches new heights this month, signaling the approach of the tourist season.
July, in the heart of the tourist season, presents rising day temperatures and further warming of the sea, now at 20 °C (69 °F). Rainfall reaches its annual low, matched by a minimum number of wet days. The zenith of sunshine hours is observed, signifying the peak of summer.
August, close to the apex of the tourist season, experiences the highest daytime temperatures, peaking at 26 °C (78 °F), and the warmest sea temperatures, recorded at 21 °C (70 °F). A slight increase in rainfall can be seen, but it remains minimal. The duration of sunlight begins to decrease.
September marks a turning point in Arcachon with the commencement of the decline in sea temperatures, registering 20 °C (68 °F), and a reduction in daytime warmth. The frequency of rain starts to climb, along with a mild rise in rainfall, now at 76 mm (2.97 in). The sunlight hours continue to recede.
In October, the downward trend in sea temperature is more pronounced, with measurements at 18 °C (64 °F), while daytime temperatures carry on their descent, now averaging 20 °C (68 °F). A greater intensity of rainfall is noted, including more frequent rainy days. Night temperatures also experience a decline, and the hours of sunlight narrow.
November in Arcachon signals the approach of winter with a continued drop in sea temperatures, now at 15 °C (60 °F), and the day temperatures further decrease, reaching 14 °C (57 °F). The number of rainy days hits their annual high, simultaneously with the peak in rainfall volume. Diminishing daylight and sunlight hours signify the shortening of days.
December's chill introduces the final decline in sea temperatures, averaging 13 °C (56 °F), while the decline in daytime warmth is also evident. The trend of decreasing rainy days is initiated, and the nighttime temperatures taper off. The shortest daylight hours of the year are experienced in December.
In January, Arcachon has an average daytime temperature of approximately 11 °C (51 °F).
In February, you can typically expect about 11 days of rain in Arcachon.
March brings an increase in the number of sunny hours, with an average duration of 5 hours.
Night temperatures in Arcachon follow an upward trend during April, averaging 7 °C (45 °F).
In May, Arcachon experiences an average of about 10 days of rainy days.
Visitors in June will find the sea temperature in Arcachon to be moderately warm, averaging 18 °C (65 °F).
No, July in Arcachon is not marked by high humidity, despite the peak summer temperatures.
August in Arcachon brings a slight increase in precipitation, yet it remains relatively low, with an average of 7 days of rain.
September in Arcachon begins to see an increase in rainfall compared to the drier summer months, averaging 76 mm (2.97 in).
Travelers in October will notice a cooler sea temperature in Arcachon, with an average of 18 °C (64 °F).
November marks the time of year when Arcachon experiences the highest number of rainy days, peaking at 13 days.
December in Arcachon is characterized by the shortest daylight hours of the year, indicating the onset of winter.