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Contents
- The climate of Monte Carlo
- The best time to visit Monte Carlo
- The worst time to visit Monte Carlo
- Spring weather in Monte Carlo
- Summer weather in Monte Carlo
- Autumn weather in Monte Carlo
- Winter weather in Monte Carlo
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
A large fountain of water geysers in front of the Monte Carlo Casino in Monte Carlo, Monaco
Climate and monthly weather forecast
The climate of Monte Carlo
A crowning jewel nestled on the French Riviera, Monte Carlo in Monaco basks in the splendour of a Mediterranean, warm summer climate, as classified by the Köppen climate system under the Csb category. This classification unmistakably depicts Monte Carlo's year-round moderate temperatures and high levels of humidity, setting the scene for a constituent warm climate.
Analyzing the climatological data provided substantiates this classification. Throughout the year, the average high temperature fluctuates modestly, moving from 12.5°C (54.5°F) in January up to a peak of 26.6°C (79.9°F) in August, and then gradually tapering off to 13.5°C (56.3°F) by December. Concurrently, the average low temperature also exhibits a gentle rise and fall existing within a range from 4.9°C (40.8°F) to 19.3°C (66.7°F).
Rainfall frequencies in Monte Carlo present a distinct pattern. Starting from a high of 83mm (3.27") in January, rainfall steadily decreases until July, where it reaches its minimum at 16mm (0.63"). Following this, rain levels rise again, peaking at 108mm (4.25") in October before declining once more towards the end of the year. As expected for a coastal city, the sea temperature follows a similar pattern of the air temperature, fluctuating from 13.1°C (55.6°F) to 23.7°C (74.7°F) over the year.
Analyzing the climatological data provided substantiates this classification. Throughout the year, the average high temperature fluctuates modestly, moving from 12.5°C (54.5°F) in January up to a peak of 26.6°C (79.9°F) in August, and then gradually tapering off to 13.5°C (56.3°F) by December. Concurrently, the average low temperature also exhibits a gentle rise and fall existing within a range from 4.9°C (40.8°F) to 19.3°C (66.7°F).
Rainfall frequencies in Monte Carlo present a distinct pattern. Starting from a high of 83mm (3.27") in January, rainfall steadily decreases until July, where it reaches its minimum at 16mm (0.63"). Following this, rain levels rise again, peaking at 108mm (4.25") in October before declining once more towards the end of the year. As expected for a coastal city, the sea temperature follows a similar pattern of the air temperature, fluctuating from 13.1°C (55.6°F) to 23.7°C (74.7°F) over the year.
The best time to visit Monte Carlo
Considering the weather elements, the sweet spot for exploration in Monte Carlo falls between May and September. During this period, tourists can enjoy pleasantly warm air temperatures ranging from 19.8°C (67.6°F) to 26.6°C (79.9°F). Sea temperatures also become agreeable for aquatic activities, sitting comfortably between 18°C (64.4°F) and 23.7°C (74.7°F). Additionally, the city receives maximum daylight hours of up to 15.4 hours in June and the least rainfall, with July being the driest month holding just 16mm (0.63") of rain.
The worst time to visit Monte Carlo
While Monte Carlo offers charm in every season, the period from November to February experiences lower temperatures, ranging from 12.5°C (54.5°F) to 16.2°C (61.2°F), and higher rainfall with November bringing in a substantial 104mm (4.09") downpour. During these months, the sea temperature also falls below 18°C (64.4°F), making it less suitable for water sports or beach activities.
Spring weather in Monte Carlo
Monte Carlo's spring spans from March to May bringing promise of warming air temperatures. Rising from an average high of 14.5°C (58.1°F) in March to 19.8°C (67.6°F) in May, these months pave the way for outdoor enjoyment. Meanwhile, the evenings continue to offer a cool contrast with temperatures from 7.2°C (45°F) to 13°C (55.4°F). The sea temperature experiences a modest increase from 13.4°C (56.1°F) to 18°C (64.4°F), catering to the adventurous.
Summer weather in Monte Carlo
Humming with action, summers in Monte Carlo traverse June to August. The season embraces the highest average temperatures, soaring from 23.3°C (73.9°F) in June to 26.6°C (79.9°F) in August. Meanwhile, evenings cool off lightly, with temperatures ranging from 16.4°C (61.5°F) to 19.3°C (66.7°F). June also sees the longest day in the year, bathing the city in a generous 15.4 hours of daylight.
Autumn weather in Monte Carlo
Autumn proves equally pleasant in Monte Carlo, extending from September to November. Average high temperatures regress from the summer peak of 24.2°C (75.6°F) in September to 16.2°C (61.2°F) by November. The evenings develop a brisk chill, with temperatures declining from 16.9°C (62.4°F) to 8.6°C (47.5°F). Despite these changes, the sea remains relatively warm varying from 22.3°C (72.1°F) to 17.4°C (63.3°F), providing ample delight for water enthusiasts.
Winter weather in Monte Carlo
Winters in Monte Carlo, spanning December to February, carry a unique charm. The average high temperature dips to reach a yearly low of 12.5°C (54.5°F) by January while evening temperatures can drop as low as 4.9°C (40.8°F) by January. As the coldest season, it is also the rainiest with the highest rainfall seen in these months, peaking at 83mm (3.27") in January. Simultaneously, the sea cools down to 13.5°C (56.3°F) in December and lowers further to 13.1°C (55.6°F) by February.
Weather in January
Monte Carlo, Monaco, greets the new year with generally mild and wet conditions. Notably, January is characterized by the lowest amount of daylight in the year, clocking in at a mere 9.4 hours. The city experiences frequent precipitation, leading to saturated soil and a generally damp atmosphere. Weather in January »
Weather in February
In February, Monte Carlo ushers in a marginal increase in climatic conditions. The city begins to bid goodbye to the winter chill as the sunshine duration mildly increases to 5.5 hours. The frequency of rainfall tends to decline, leading to drier paths and less gloomy skies. Weather in February »
Weather in March
Transitioning from winter to spring, Monte Carlo in March possesses an improved climate. March sees a spring in its step with a noticeable jump in temperature highs. The temperature range shifts from 12.5°C (54.5°F) to 14.5°C (58.1°F) month-to-month. Weather in March »
Weather in April
April showers ring true for Monte Carlo, albeit with mild intensity. It is crucial to note the sea temperature enhancement which allows it to jump from 13.4°C (56.1°F) in March to 14.7°C (58.5°F) in April. The rainfall, more scattered now, lends a special charm to the city's lush gardens and flora. Weather in April »
Weather in May
With May, Monte Carlo embraces peak spring with brighter, longer days. The city experiences its first taste of the approaching summer as the number of rainfall days drop to 5.2, ushering in clear skies. With improved climatic conditions, the city becomes preferable for a plethora of activities such as court-side spectating at the Monaco Grand Prix. Weather in May »
Weather in June
June marks the official onset of summer in Monte Carlo. A dip in rainfall to 37mm (1.46") indicates a drier atmosphere and sunnier days. June incorporates an increase in sunshine duration leading to perfect conditions for taking a dip in the azure waters. Weather in June »
Weather in July
In July, Monte Carlo is comfortably nestled in mid-summer warmth. The city records its highest temperature highs for that year, touching a balmy 26.4°C (79.5°F). The summer heat is undeniably intense but moderated by coastal breezes, resulting in warm yet bearable conditions. Weather in July »
Weather in August
August signals the waning phase of summer in Monte Carlo with only slight climate fluctuations. Remarkably, the city pushes through August with the highest sea temperatures registered at 23.7°C (74.7°F). Outdoor activities remain in full swing and beach days are common. Weather in August »
Weather in September
September in Monte Carlo embodies the essence of early autumn. Despite a slight dip in temperature and a marginal increase in rainfall from August to September, conditions remain comfortably warm. The return of increased rainfall revitalizes the city's foliage and contrasting blue skies make the city incredibly picturesque. Weather in September »
Weather in October
October in Monte Carlo represents full-fledged autumn with notable climate changes. A striking feature of this month is the substantial increase in rainfall from 54mm (2.13") in September to 108mm (4.25") in October. The city witnesses cooler days and crisp nights, requiring the inhabitants to start transitioning their clothes from light fabrics to slightly warmer layers. Weather in October »
Weather in November
November brings a notable chill to Monte Carlo's climate. However, the UV Index showing a drop from 3 in October to 2 in November stands out the most in terms of climate data. The onset of winter barely hampers the outdoor activities, making the city a year-round destination. Weather in November »
Weather in December
Concluding the year, December in Monte Carlo comes with a winter chill. The temperatures drop further with the UV Index reaching its annual low of 1. The gloves, thick coats and woolen hats make their appearance in December’s fashion scene. Weather in December »
Updated: Jul 23, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
During the coldest month in Monte Carlo, January, temperatures average a high of 12.5°C (54.5°F) and a low of 4.9°C (40.8°F).
How many days does it rain?
In Monte Carlo, Monaco, during the entire year, the rain falls for 62.7 days and collects up to 769mm (30.28") of precipitation.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When is the sea coldest?
February is the month with the coldest seawater, with an average sea temperature of 13.1°C (55.6°F).
When are the longest days?
With an average of 15h and 24min of daylight, June has the longest days of the year.
When is the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 8.
What is the driest month?
The month with the least rainfall is July, when the rain falls for 1.9 days and typically collects 16mm (0.63") of precipitation.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11h of sunshine.
What is the hottest time of year?
With an average high-temperature of 26.6°C (79.9°F) and an average low-temperature of 19.3°C (66.7°F), August is the warmest month.
When is the sea warmest?
With an average sea temperature of 23.7°C (74.7°F), August is the month with the warmest seawater.
What is the rainiest month?
October is the month with the most rainfall. Rain falls for 5.8 days and accumulates 108mm (4.25") of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 0min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 4.6h of sunshine.
Average temperature
Monte Carlo, Monaco
The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (12.5°C).
The months with the highest average low temperature are July and August (19.3°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).
Average rainfall
Monte Carlo, Monaco
- Average rainfall in January:
82.7mm - Average rainfall in February:
76.4mm - Average rainfall in March:
70.5mm - Average rainfall in April:
62.2mm - Average rainfall in May:
48.6mm - Average rainfall in June:
36.9mm
- Average rainfall in July:
15.6mm - Average rainfall in August:
31.3mm - Average rainfall in September:
54.4mm - Average rainfall in October:
108.2mm - Average rainfall in November:
104.2mm - Average rainfall in December:
77.5mm
The wettest month (with the highest rainfall) is October (108.2mm).
The driest month (with the least rainfall) is July (15.6mm).
Average rainfall days
Monte Carlo, Monaco
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
6.1 days - Average rainfall days in April:
6.3 days - Average rainfall days in May:
5.2 days - Average rainfall days in June:
4.1 days
- Average rainfall days in July:
1.9 days - Average rainfall days in August:
3.1 days - Average rainfall days in September:
4 days - Average rainfall days in October:
5.8 days - Average rainfall days in November:
7 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is November (7 days).
The month with the least rainy days is July (1.9 days).
Average sea temperature
Monte Carlo, Monaco
The best month for swimming (with the highest average sea temperature) is August (23.7°C).
The coldest month (with the lowest average sea temperature) is February (13.1°C).
Average daylight / Average sunshine
Monte Carlo, Monaco
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
5h and 3min - Average sunshine in March:
6h and 3min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 0min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average UV index
Monte Carlo, Monaco
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 1).
