Weather and climate in Imperia (Liguria)

The climate of Imperia, the westernmost provincial capital of Liguria, is Mediterranean, with mild, relatively rainy winters and warm, sunny summers.
The city is located on the Western Ligurian Coast ("Riviera di Ponente"), 40 km (25 mi) away from the border with France, and is made up of the towns of Oneglia, where the Impero stream flows into the sea, and Porto Maurizio.
We are in an area that has a particularly mild climate: the average temperature of January, as high as 10 °C (50 °F), is found again only in Southern Italy, while in summer, very hot days are rare.
On the other hand, the wind blows quite frequently.
Here are the average temperatures at the Cape Mele weather station, located at 220 meters (720 feet) above sea level.

Rainfall amounts to about 700 millimeters (27.5 inches) per year, and follows the Mediterranean pattern, in fact, it is more abundant in autumn and winter, and hits a minimum in summer, when it rains very rarely.
Here is the average rainfall.

Winter, from December to February, is mild. In particular, periods of high pressure are pleasant, when the sun shines, and the temperature can reach or exceed 15 °C (59 °F), while the Po valley is shrouded in mist and maybe in frost.
In periods of bad weather, it can be a bit cold, but snow is very rare. In fact, Imperia is one of the least snowy cities on the Ligurian Riviera, which is already an area with little snow.
Frosts are also very rare and almost always light: usually, the temperature does not drop below -2/-3 °C (27/28 °F) even during the most intense cold waves, and it may very well remain above freezing (0 °C or 32 °F) for a whole winter.

Spring, from March to May, is mild and increasingly sunnier, although there are also some rainy days.

Summer, from June to August, is warm and sunny. Generally, the heat is not excessive, thanks to the influence of the sea: it is even rare for the temperature to reach 32/33 °C (90/91 °F), however, some sultry periods or some hot days can not be excluded.
Some weather fronts may pass over the city even in summer, especially in June and in late August, while on sunny days, some heat thunderstorms can reach the coast from the interior, but normally, the sun shines.

Autumn, from September to November, is mild and humid, with sunny days, but also periods of bad weather.



Imperia is the sunniest city in northern Italy. The amount of sunshine is very good in summer, when clear skies prevail, while in the rest of the yar, sunny periods, which can occur in this season as well, alternate with cloudy periods. On average, there are 2,550 hours of sunshine per year, from 4.5 hours of sunshine per day in January to 10.5 hours in July. Here are the average sunshine hours per day.

The sea in Imperia and in the nearby towns is warm enough for swimming in July and even more so in August, when it reaches 24.5 °C (76 °F), while in June, the Ligurian Sea is still cool. Here are the average sea temperatures.

Best Time

The best times to visit Imperia are spring and early summer, in particular, from mid-April to mid-June. September, too, is a good month, especially in the first half, while later, Atlantic depressions become more frequent.
In the height of summer, in July and August, it can be hot, although less frequently than in other parts of Italy.
For a beach holiday on the Western Ligurian Riviera, the best months are exactly July and August.

Imperia - Weather by month

Based on the period 1991-2020

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January, the coldest month of the year, is generally a mild month. The average temperature is of 9.4 °C (49 °F), with a minimum of 6.9 °C (44.4 °F) and a maximum of 12 °C (53.6 °F).
On the coldest nights of the month, the temperature usually drops to around 1.5 °C (35 °F). However, it dropped to -3 °C (26.6 °F) in January 1999.
On the warmest days of the month, the temperature usually reaches around 17 °C (62 °F). However, it reached 20 °C (68 °F) in January 2019.
Precipitation amounts to 80 mm (3.1 in), distributed over 6 days.
The day lasts on average 9 hours and 25 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 63%.
The average wind speed is 20 kph (12 mph).
The average sea temperature is of 13.5 °C (56.5 °F). Therefore, the sea is very cold for swimming.

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February is generally a mild month. The average temperature is of 9.7 °C (49 °F), with a minimum of 6.9 °C (44.5 °F) and a maximum of 12.5 °C (54.5 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (36 °F). However, it dropped to -3 °C (26.6 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 17.5 °C (63.5 °F). However, it reached 22 °C (71.6 °F) in February 1998.
Precipitation amounts to 75 mm (3 in), distributed over 5 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 63%.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 13 °C (56 °F). Therefore, the sea is very cold for swimming.

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March is generally a mild month. The average temperature is of 11.7 °C (53 °F), with a minimum of 8.8 °C (47.8 °F) and a maximum of 14.7 °C (58.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to -3.4 °C (25.9 °F) in March 2018.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 19.5 °C (67 °F). However, it reached 23.1 °C (73.6 °F) in March 1997.
Precipitation amounts to 70 mm (2.8 in), distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 67%.
The average wind speed is 20 kph (12 mph).
The average sea temperature is of 13.5 °C (56.5 °F). Therefore, the sea is very cold for swimming.

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April is generally a mild month. The average temperature is of 13.9 °C (57 °F), with a minimum of 10.8 °C (51.5 °F) and a maximum of 16.9 °C (62.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 6.5 °C (43.5 °F). However, it dropped to 3.3 °C (37.9 °F) in April 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 23 °C (74 °F). However, it reached 30.5 °C (86.9 °F) in April 2018.
Precipitation amounts to 45 mm (1.8 in), distributed over 5 days.
The day lasts on average 13 hours and 30 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 69%.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 14.5 °C (58.5 °F). Therefore, the sea is very cold for swimming.

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May is generally a very mild month. The average temperature is of 17.8 °C (64 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 21 °C (69.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 10 °C (50 °F). However, it dropped to 6.9 °C (44.4 °F) in May 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 26.5 °C (80 °F). However, it reached 28 °C (82.4 °F) in May 1992.
Precipitation amounts to 50 mm (2 in), distributed over 6 days.
The day lasts on average 14 hours and 50 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 70%.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.

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June is generally a warm month. The average temperature is of 21.4 °C (70 °F), with a minimum of 18.2 °C (64.8 °F) and a maximum of 24.6 °C (76.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 13.5 °C (56.5 °F). However, it dropped to 7 °C (44.6 °F) in June 1997.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 30.5 °C (86.5 °F). However, it reached 35 °C (95 °F) in June 2019.
Precipitation amounts to 35 mm (1.4 in), distributed over 4 days.
The day lasts on average 15 hours and 25 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 21 °C (69.5 °F). Therefore, the sea is cool for swimming.

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July is generally a warm to hot, muggy month. The average temperature is of 24.3 °C (76 °F), with a minimum of 21 °C (69.9 °F) and a maximum of 27.6 °C (81.6 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (63 °F). However, it dropped to 13 °C (55.4 °F) in July 2000.
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F). However, it reached 35 °C (95 °F) in July 1994.
Precipitation amounts to 10 mm (0.4 in), distributed over 2 days.
The day lasts on average 15 hours and 5 minutes. So the days are long.
There are on average 10.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 23.5 °C (74.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

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August, the warmest month of the year, is generally a warm to hot, muggy month. The average temperature is of 24.9 °C (77 °F), with a minimum of 21.6 °C (70.9 °F) and a maximum of 28.2 °C (82.7 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (64 °F). However, it dropped to 16 °C (60.8 °F) in August 1999.
On the warmest days of the month, the temperature usually reaches around 33 °C (91 °F). However, it reached 37 °C (98.6 °F) in August 2015.
Precipitation amounts to 35 mm (1.4 in), distributed over 3 days.
The day lasts on average 13 hours and 55 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 24.5 °C (76.5 °F). Therefore, the sea is warm enough for swimming.

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September is generally a warm month. The average temperature is of 21.6 °C (71 °F), with a minimum of 18.5 °C (65.3 °F) and a maximum of 24.8 °C (76.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 14 °C (57.5 °F). However, it dropped to 8 °C (46.4 °F) in September 1995.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 29.5 °C (85 °F). However, it reached 35 °C (95 °F) in September 2020.
Precipitation amounts to 50 mm (2 in), distributed over 4 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 66%.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 22.5 °C (72.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

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October is generally a very mild month. The average temperature is of 17.5 °C (64 °F), with a minimum of 14.8 °C (58.6 °F) and a maximum of 20.3 °C (68.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 10 °C (50.5 °F). However, it dropped to 4 °C (39.2 °F) in October 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 25 °C (77 °F). However, it reached 29.4 °C (84.9 °F) in October 2011.
Precipitation amounts to 80 mm (3.1 in), distributed over 6 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 67%.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of 20 °C (68 °F). Therefore, the sea is very cool for swimming.

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November is generally a mild month. The average temperature is of 13.4 °C (56 °F), with a minimum of 10.9 °C (51.5 °F) and a maximum of 15.9 °C (60.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 6 °C (43 °F). However, it dropped to 0 °C (32 °F) in November 1998.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 21 °C (69.5 °F). However, it reached 25 °C (77 °F) in November 2004.
Precipitation amounts to 100 mm (3.9 in), distributed over 8 days.
The day lasts on average 9 hours and 35 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 64%.
The average wind speed is 20 kph (12 mph).
The average sea temperature is of 17 °C (63 °F). Therefore, the sea is cold for swimming.

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December is generally a mild month. The average temperature is of 10.5 °C (51 °F), with a minimum of 8 °C (46.4 °F) and a maximum of 13 °C (55.4 °F).
On the coldest nights of the month, the temperature usually drops to around 3 °C (37.5 °F). However, it dropped to -2 °C (28.4 °F) in December 1996.
On the warmest days of the month, the temperature usually reaches around 17.5 °C (64 °F). However, it reached 21 °C (69.8 °F) in December 1991.
Precipitation amounts to 60 mm (2.4 in), distributed over 5 days.
The day lasts on average 9 hours and 0 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 63%.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 15 °C (59 °F). Therefore, the sea is cold for swimming.