Boulogne-sur-Mer
France
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Boulogne-sur-Mer, France

January, the same as December, in Boulogne-sur-Mer, France, is another chilly winter month, with temperature in the range of an average low of 4.1°C (39.4°F) and an average high of 7°C (44.6°F). With an average high-temperature of 7°C (44.6°F) and an average low-temperature of 4.1°C (39.4°F), January is the coldest month. Weather in January »

The last month of the winter, February, is another chilly month in Boulogne-sur-Mer, France, with temperature in the range of an average low of 4.3°C (39.7°F) and an average high of 7.1°C (44.8°F). In Boulogne-sur-Mer, the average high-temperature is practically the same as in January - a still chilly 7.1°C (44.8°F). Weather in February »

The first month of the spring, March, is also a frosty month in Boulogne-sur-Mer, France, with temperature in the range of an average high of 9.3°C (48.7°F) and an average low of 5.5°C (41.9°F). In March, the average high-temperature is practically the same as in February - a still frosty 9.3°C (48.7°F). Weather in March »

April is a cool spring month in Boulogne-sur-Mer, France, with average temperature fluctuating between 7.4°C (45.3°F) and 11.9°C (53.4°F). In Boulogne-sur-Mer, the average high-temperature is essentially the same as in March - a cool 11.9°C (53.4°F). Weather in April »

May, the last month of the spring, in Boulogne-sur-Mer, is a moderate month, with average temperature ranging between min 9.8°C (49.6°F) and max 13.9°C (57°F). In May, the average high-temperature is practically the same as in April - a mild 13.9°C (57°F). Weather in May »

The first month of the summer, June, is a comfortable month in Boulogne-sur-Mer, France, with average temperature fluctuating between 12.6°C (54.7°F) and 16.6°C (61.9°F). In Boulogne-sur-Mer, the average high-temperature is almost the same as in May - an enjoyable 16.6°C (61.9°F). Weather in June »

July, the same as June, is another comfortable summer month in Boulogne-sur-Mer, France, with average temperature ranging between max 19°C (66.2°F) and min 14.8°C (58.6°F). In Boulogne-sur-Mer, the average high-temperature is essentially the same as in June - a still comfortable 19°C (66.2°F). Weather in July »

August, the last month of the summer, in Boulogne-sur-Mer, is also an enjoyable month, with temperature in the range of an average high of 19.6°C (67.3°F) and an average low of 15.7°C (60.3°F). With an average high-temperature of 19.6°C (67.3°F) and an average low-temperature of 15.7°C (60.3°F), August is the warmest month. Weather in August »

September, the first month of the autumn, in Boulogne-sur-Mer, is also an enjoyable month, with average temperature ranging between max 17.8°C (64°F) and min 13.8°C (56.8°F). In September, the average high-temperature is practically the same as in August - a still enjoyable 17.8°C (64°F). Weather in September »

October, like September, is a moderate autumn month in Boulogne-sur-Mer, France, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 15°C (59°F). In Boulogne-sur-Mer, the average high-temperature in October is essentially the same as in September - a moderate 15°C (59°F). Weather in October »

November, the last month of the autumn, in Boulogne-sur-Mer, is another cool month, with average temperature fluctuating between 8.2°C (46.8°F) and 10.9°C (51.6°F). In November, the average high-temperature marginally drops, from a moderate 15°C (59°F) in October, to a fresh 10.9°C (51.6°F). Weather in November »

December, the first month of the winter, in Boulogne-sur-Mer, is still a chilly month, with average temperature ranging between min 5.9°C (42.6°F) and max 8.5°C (47.3°F). In December, the average high-temperature is relatively the same as in November - a frosty 8.5°C (47.3°F). Weather in December »

What is the coldest month in Boulogne-sur-Mer?

January is the coldest month in Boulogne-sur-Mer, France, with an average high-temperature of 7°C (44.6°F) and an average low-temperature of 4.1°C (39.4°F).

What are the most humid months in Boulogne-sur-Mer?

January, June and December, with an average relative humidity of 83%, are most humid months in Boulogne-sur-Mer, France.

How much does it rain in Boulogne-sur-Mer?

In Boulogne-sur-Mer, France, during the entire year, the rain falls for 175.8 days and collects up to 430mm (16.93") of precipitation.

When does it snow in Boulogne-sur-Mer?

January through March, November and December are months with snowfall.

How many days does it snow in Boulogne-sur-Mer?

In Boulogne-sur-Mer, France, during the entire year, snow falls for 7.4 days, and aggregates up to 40mm (1.57") of snow.

When does it snow the most in Boulogne-sur-Mer?

The month with the most snowfall in Boulogne-sur-Mer, France, is January when snow falls for 2.3 days and typically aggregates up to 21mm (0.83") of snow.

What is the month with the lowest UV index in Boulogne-sur-Mer?

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

What is the driest month in Boulogne-sur-Mer?

Months with the least rainfall in Boulogne-sur-Mer are April and May Rain falls for 11.5 days and accumulates 19mm (0.75") of rain.

When it does not snow in Boulogne-sur-Mer?

In Boulogne-sur-Mer snow does not fall in April through October.

When are the longest days in Boulogne-sur-Mer?

June has the longest days of the year in Boulogne-sur-Mer, with an average of 16.4h of daylight.

What month has the most sunshine in Boulogne-sur-Mer?

The month with the most sunshine in Boulogne-sur-Mer is June, with an average of 10.8h of sunshine.

What are the months with the highest UV index in Boulogne-sur-Mer?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Boulogne-sur-Mer.

What is the warmest month in Boulogne-sur-Mer?

The warmest month is August, with an average high-temperature of 19.6°C (67.3°F) and an average low-temperature of 15.7°C (60.3°F).

What are the least humid months in Boulogne-sur-Mer?

August and September, with an average relative humidity of 79%, are the least humid months in Boulogne-sur-Mer.

What is the month with the least sunshine in Boulogne-sur-Mer?

With an average of 4.2h of sunshine, November has the least sunshine of the year in Boulogne-sur-Mer, France.

What is the rainiest month in Boulogne-sur-Mer?

The month with the most rainfall in Boulogne-sur-Mer, France, is December when the rain falls for 16.7 days and typically aggregates up to 54mm (2.13") of precipitation.

What is the month with the shortest days in Boulogne-sur-Mer?

The month with the shortest days in Boulogne-sur-Mer is December, with an average of 8.1h of daylight.
Average temperature - Boulogne-sur-Mer, France
Average humidity - Boulogne-sur-Mer, France

Months with the highest relative humidity are January, June and December (83%).
Months with the lowest relative humidity are August and September (79%).

Average rainfall - Boulogne-sur-Mer, France
Average rainfall days - Boulogne-sur-Mer, France

The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is April (11.5 days).

Average snowfall - Boulogne-sur-Mer, France

The month with the highest snowfall is January (21mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days - Boulogne-sur-Mer, France

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Boulogne-sur-Mer, France

The month with the longest days is June (Average daylight: 16.4h).
The month with the shortest days is December (Average daylight: 8.1h).

The month with the most sunshine is June (Average sunshine: 10.8h).
The month with the least sunshine is November (Average sunshine: 4.2h).

Average UV index - Boulogne-sur-Mer, France