Climate and monthly weather forecast
Serravalle, San Marino

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The climate of Serravalle

Serravalle, nestled charmingly in San Marino, experiences a Cfb climate, also known as the Marine West Coast climate with warm summers, as classified by the Köppen climate system. This climate type manifests itself in moderately warm temperatures and notable rainfall throughout the year.

On a yearly rotation, the area observes temperatures fluctuating from a high of 28.9°C (84°F) in August to a low of 5.3°C (41.5°F) in January. Humidity, constantly providing moisture to the air, has a not too dissimilar rhythm, peaking at 77% in November and reaching a low point of 61% by August.

A marked characteristic of Serravalle's climate is its year-round rainfall, which ranges from a high of 69mm (2.72") in May to a low of 30mm (1.18") in August. Despite distinct variations, rainfall occurs in all months, signifying a consistently humid atmosphere. The corresponding number of rainfall days echoes a similar pattern, reaching a highest count of 14.8 days in May and a least count of 9.3 days in August.

Unique to this area is the unusual snowfall pattern, with a scattering of snow occurring in the colder months from 11mm (0.43") in January to 2mm (0.08") in December, which is nevertheless a rare deviation in this mild marine climate.

The Best Time to Visit Serravalle

To enjoy the warm, inviting climate, the months from June to August present the most favorable conditions. During this period, temperatures range from 25.5°C (77.9°F) to 28.9°C (84°F) with the sky liberally sprinkled with sunshine for about 11.5 to 11.6 hours per day. This time segment also sees a drop in the cloud cover to a bare 15% in July, which along with a UV index peak of 7 in July, promises ample opportunities for outdoor exploration and light-hearted amusement in Serravalle.

The Worst Time to Visit Serravalle

While Serravalle has a welcoming climate year-round, the months where conditions might be slightly challenging would be November and December. The temperatures during these months plummet to a lower range between 10.2°C (50.4°F) to 14.5°C (58.1°F). Rainfall also observes a spike during this period, reaching 54mm (2.13") in November, coupled with an increase in humidity, spelling damp and cold days.

Spring Weather in Serravalle

Spring in Serravalle, spreading from March to May, offers mild and refreshing conditions. A moderate temperature that wavers from 13.2°C (55.8°F) to 20.7°C (69.3°F) encompasses these months, along with a relative humidity rate that transitions from 73% to 71%.

However, it is worth noting that it is also during this season that Serravalle receives its highest rainfall of 69mm (2.72") in May. This propensity towards precipitation is accompanied by longer daylight hours from 11.9 hours in March extending to 14.8 hours in May, making spring a season of mild warmth and sunny spells interspersed with frequent showers.

Summer Weather in Serravalle

Summer in Serravalle, extending from June to August, is usually warm and lovely. Temperatures soar to the yearly maximum during these months, reaching from 25.5°C (77.9°F) in June to a balmy 28.9°C (84°F) in August. The relative humidity drops to a comfortable 62% in July, while rainfall and cloud cover also decrease, making summer dry, warm, and filled with clear-skied days.

Autumn Weather in Serravalle

Autumn in Serravalle, rolling in from September to November, is characterized by slightly cooler temperatures that move from 24.1°C (75.4°F) to a chillier 14.5°C (58.1°F). While humidity remains relatively stable from 67% to 77%, the rainfall increases, peaking in November with 54mm (2.13"), making autumn damp and cool.

Winter Weather in Serravalle

Winter in Serravalle, spanning December to February, witnesses a drop in temperatures, with lows of 5.3°C (41.5°F) in January to highs of 10.2°C (50.4°F) in February. The period is marked by relatively high humidity ranging from 76% to 77%, with expectant rainfall of 36mm (1.42") to 42mm (1.65") across these winter months. A small sprinkle of snow can be expected in December and January, adding to the charm of the chilly season in Serravalle.

Weather in January

January in Serravalle, San Marino, brings some of the chilliest temperatures of the year, alongside relatively high humidity. The mercury often hovers around 5.3°C (41.5°F) and can reach up to 9°C (48.2°F). As we transition from December, we witness a slight rise in temperatures, along with a marginally lower rainfall count. Weather in January »

Weather in February

In February, Serravalle grapples with a continuation of the winter season. A modest elevation in both the lower and upper extremities of temperatures, reaching 5.7°C (42.3°F) and 10.2°C (50.4°F) respectively, is noticed, accompanying the city's gradual progress towards the spring. Weather in February »

Weather in March

The month of March signals the end of winter in Serravalle, paving the way for spring’s warmer embrace. The 7.6°C (45.7°F) to 13.2°C (55.8°F) temperature range, alongside a decline in snowfall, substantiates this transition. Weather in March »

Weather in April

With April's arrival in Serravalle, the feeling of spring is undeniably in full swing. A significant rise ensues in both the lower and upper bounds of April's temperatures, averaging from 10.5°C (50.9°F) to 16.8°C (62.2°F). The rainfall slightly declines compared to March, yet it does not deter the thriving city flora. Weather in April »

Weather in May

May's weather is a testament to the maturation of spring in Serravalle. May’s rainfall takes a major leap to 69mm (2.72") compared to the previous month’s 38mm (1.5"), notching up the highest throughout the year. As the warmth steadily expands, residents experience longer daylight hours, beneficial to those engaging with outdoor activities. Weather in May »

Weather in June

In June, Serravalle transitions smoothly from spring into the first month of summer. Temperatures start to soar, offering a refreshing contrast to the relative coolness of May. The longest daylight hours of the year are observed, providing optimal light conditions for sightseeing in this historic city. Weather in June »

Weather in July

July, the second month of summer in Serravalle, maintains a firm grip on heat. The temperatures reach their zenith, with the highest record peaking from 20.8°C (69.4°F) to 28.6°C (83.5°F). The city embraces the summer heat, also marking the lowest humidity levels of the year. Weather in July »

Weather in August

As August sweeps into Serravalle, the sweltering summer continues. There exist albeit minor fluctuations in weather conditions as August records the highest monthly temperature of the entire year, peaking from 21.2°C (70.2°F) to 28.9°C (84°F). Weather in August »

Weather in September

September in Serravalle heralds the advent of autumn. A noticeable drop ensues in temperatures from the summer highs of August, easing back from the intense heat. The average amount of daylight diminishes slightly; however, this does little to affect the overall pleasant weather. Weather in September »

Weather in October

October in Serravalle permits the full bloom of autumn, presenting its unique blend of temperate and mild conditions. The weather undergoes a subtle shift, with temperatures continuing their downward trend from September. The month displays a typical autumnal character, with decreasing daylight hours and a steady rise in humidity. Weather in October »

Weather in November

The gradual descent into the colder months commences with November in Serravalle. November's temperatures experience a further tumble, with the mercury typically oscillating from 10.2°C (50.4°F) to 14.5°C (58.1°F). Concurrently, there is a significant increase in rainfall compared to October. Weather in November »

Weather in December

December, the last month of the year in Serravalle, marks the city's return to wintertime. Visibly lower temperatures return, very similar to those observed in January. A slight uptick in snowfall also surfaces, reintroducing the city to its winterly snow-capped scenes. Weather in December »
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Frequently asked questions

What time of the year is the coldest in Serravalle?

In Serravalle, January registers the lowest temperatures, averaging 9°C (48.2°F) at the peak and 5.3°C (41.5°F) at the lowest.

How much does it rain in Serravalle?

Throughout the year, in Serravalle, there are 139.3 rainfall days, and 509mm (20.04") of precipitation is accumulated.

When does it snow in Serravalle?

January through March and December are months with snowfall in Serravalle.

How much does it snow in Serravalle?

In Serravalle, during the entire year, snow falls for 3 days and aggregates up to 34mm (1.34") of snow.

When is the lowest UV index in Serravalle?

With an average maximum UV index of 2, January is the month with the lowest UV index in Serravalle, San Marino.

When does it snow the most in Serravalle?

February is the month with the most snowfall in Serravalle, San Marino. Snow falls for 1 days and accumulates 12mm (0.47") of snow.

What is the month with the least sunshine in Serravalle?

With an average of 5.3h of sunshine, February has the least sunshine of the year in Serravalle, San Marino.

When it does not snow in Serravalle?

In Serravalle, snow does not fall in April through November.

What is the rainiest month in Serravalle?

The month with the most rainfall in Serravalle is May, when the rain falls for 14.8 days and typically aggregates up to 69mm (2.72") of precipitation.

When are the longest days in Serravalle?

With an average of 15h and 24min of daylight, June has the longest days of the year in Serravalle, San Marino.

What are the months with the most sunshine in Serravalle?

July and August, with an average of 11.6h of sunshine, are months with the most sunshine in Serravalle, San Marino.

What is the month with the highest UV index in Serravalle?

July is the month with the highest UV index, with an average maximum UV index of 7.

What month is the hottest in Serravalle?

In Serravalle, August is identified by the average highest temperatures, reaching a peak of 28.9°C (84°F) and a low of 21.2°C (70.2°F).

What is the least humid month in Serravalle?

August is the least humid month, with an average relative humidity of 61%.

What is the driest month in Serravalle?

The month with the least rainfall in Serravalle, San Marino, is August, when the rain falls for 9.3 days and typically collects 30mm (1.18") of precipitation.

When is Daylight Saving Time (DST) in Serravalle?

On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Serravalle, San Marino, 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 most humid month in Serravalle?

With an average relative humidity of 77%, November is the most humid month in Serravalle, San Marino.

What is the month with the shortest days in Serravalle?

With an average of 9h and 0min of daylight, December has the shortest days of the year.

Average temperature
Serravalle, San Marino

Average temperature - Serravalle, San Marino

The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is January (9°C).

The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).

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Average pressure
Serravalle, San Marino

Average pressure - Serravalle, San Marino

The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).

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Average wind speed
Serravalle, San Marino

Average wind speed - Serravalle, San Marino

The windiest month (with the highest average wind speed) is February (13.8km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

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Average humidity
Serravalle, San Marino

Average humidity - Serravalle, San Marino

The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is August (61%).

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Average rainfall
Serravalle, San Marino

Average rainfall - Serravalle, San Marino

The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is August (30mm).

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Average rainfall days
Serravalle, San Marino

Average rainfall days - Serravalle, San Marino

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is August (9.3 days).

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Average snowfall
Serravalle, San Marino

Average snowfall - Serravalle, San Marino

The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days
Serravalle, San Marino

Average snowfall days - Serravalle, San Marino

The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Serravalle, San Marino

Average daylight / Average sunshine - Serravalle, San Marino

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).

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

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Average sunshine days
Serravalle, San Marino

Average sunshine days - Serravalle, San Marino

The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is May (12.6 days).

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Average visibility
Serravalle, San Marino

Average visibility - Serravalle, San Marino

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Serravalle, San Marino

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