Climate and monthly weather forecast
Cabo Polonio, Uruguay

Climate and monthly weather forecast

The climate of Cabo Polonio

Cabo Polonio, Uruguay, experiences the Humid subtropical climate, using the classification of the Köppen climate system, known as Cfa. The village, situated along Uruguay's coastline, is characterized mainly by a warm, humid climate and marked by a noticeable absence of a dry season. A closer look at the climatological data for the area reveals several interesting trends and variations throughout the year.

Temperature in Cabo Polonio fluctuates from a high of 28.1°C (82.6°F) in January to a low of 14.6°C (58.3°F) in July, showcasing the typical contrast between summer and winter months. An accompanying variation in the lowest temperature experienced, from 18.3°C (64.9°F) in February to 7.9°C (46.2°F) in July, further accentuates these seasonal changes.

Humidity follows a similar trend with the highest level of 80% reached in July and the lowest at 68% in January. Precipitation all year round is also a characteristic feature of this climate, with rainfall ranging from 46mm (1.81") in January to 84mm (3.31") in August. This depicts a slight increase in precipitation during the colder months.

Observing daylight hours and sunshine, a distinct pattern appears. Daylight hours peak to 14.4 hours in December and bottom out at 9.9 hours in June. Correspondingly, hours of sunshine vary from a high of 10.5 hours in January to a low of 5.4 hours in July, keeping in line with the overall patterns of sunlight during different times of the year.

The best time to visit Cabo Polonio

Considering the various climate parameters, the optimal timeframe for experiencing Cabo Polonio at its finest stretches from December to February. With temperatures hovering between 26.4°C (79.5°F) to 28.1°C (82.6°F), this period offers warm weather conducive for outdoor activities. In these months, along with enjoying long daytime hours upto 14.4 hours, visitors also benefit from the high sunshine duration, ranging from 9.8 to 10.5 hours. Relative humidity remains at the lower end of the scale, from 68 to 69% during this time, adding to the overall comfort level.

The worst time to visit Cabo Polonio

The months between June and August pose challenges for visitors due to increased cold and precipitation. With the highest temperature dropping down to 14.6°C (58.3°F) in July and the lowest decreasing to 7.9°C (46.2°F) in the same month, the colder temperatures may restrict outdoor ventures. Rainfall escalates from 73mm (2.87") in June to a peak of 84mm (3.31") in August, further exacerbating the conditions. Moreover, reduced daylight hours, down to 9.9 hours in June, constrict the time available for exploration.

Spring weather in Cabo Polonio

The spring months in Cabo Polonio, stretching from September to November, bring gradually elevating temperatures. The highest temperature begins with 17.6°C (63.7°F) in September and climbs up to 23.4°C (74.1°F) by November. Simultaneously, the lowest temperature increases from 9.9°C (49.8°F) to 13.8°C (56.8°F). Despite an increased rainfall from 59mm (2.32") to 52mm (2.05") over these months, the levels of sunshine surge steadily from 7 hours to 9.8 hours aiding outdoor activities.

Summer weather in Cabo Polonio

Cabo Polonio's summer months, December through February, showcase the warmest conditions, with highest temperatures reaching between 26.4°C (79.5°F) and 28.1°C (82.6°F). The lowest temperatures also remain comfortably warm, moving from 16.1°C (61°F) to 18.3°C (64.9°F). A slight increment in rainfall from 53mm (2.09") to 51mm (2.01") notwithstanding, this period enjoys long daylight hours of 13.9 to 14.4.

Autumn weather in Cabo Polonio

Following the heat of the summer, the autumn months in Cabo Polonio, from March to May, bring pleasant weather with a steady decrease in temperature. The highest temperature drops from 24.9°C (76.8°F) in March down to 18.6°C (65.5°F) by May. Low temperatures adjust from 16.3°C (61.3°F) to 11.6°C (52.9°F) during these months. Along with steady rainfall ranging between 45mm (1.77") to 51mm (2.01"), sunshine hours during late autumn see a decrease from 8.1 hours to approximately 5.5 hours.

Winter weather in Cabo Polonio

Winter in Cabo Polonio, encompassing June through August, experiences the lowest temperatures of the year, the low dipping to 7.9°C (46.2°F) in July and the high at 14.6°C (58.3°F). Adding to the cold, rainfall amounts rise, showing highest precipitation rates of the year at 73mm (2.87") in June reaching upto 84mm (3.31") by August. Simultaneously, sunshine duration dips to the yearly minimum, dropping to 5.4 hours in July.

Weather in January

Typifying the summer season, Cabo Polonio is immersed in warm weather in January. The vibrant atmosphere is amplified by bright sunshine lasting for approximately 10.5 hours per day. Rays of sunlight filter through the sparsely scattered clouds, covering only 26% of the sky. Weather in January »

Weather in February

Predominantly similar to the conditions in January, Cabo Polonio's weather in February provides constituents of summer ambiance. Relative humidity increases to 71%, suggesting a rise in atmospheric moisture than the preceding month. Weather in February »

Weather in March

The kaleidoscope of weather elements in March signalise the transition from summer to autumn. A distinctive characteristic of this period is the prevalent 74% relative humidity, which is higher than February and preceding April. Subtle changes in weather dot the landscape of Cabo Polonio as sunny hours gradually decline to 8.1 hours per day, causing a modest decrease in temperature to 24.9°C (76.8°F). Weather in March »

Weather in April

In contrast to the warming tones of March, April ushers in a visibly cooler weather in Cabo Polonio. The cloud cover thickens intermittently, shielding the radiant sun and reducing sunshine hours to 7.4 each day. Correspondingly, there's an uptick of rainfall to 48mm (1.89"), heightening the prospect of wet spells more than the preceding March or the following May. Weather in April »

Weather in May

May in Cabo Polonio sees a distinct shift towards winter. The gradual decrease in daylight, clocking in at 10.3 hours, results in lower temperatures and limited sunshine hours. The onset of May stimulates an increase in cloud cover to 39%, precluding consistent sunshine. Weather in May »

Weather in June

As winter descends upon Cabo Polonio, June's weather is characterized by colder temperatures. The shortest sunlit period of the year occurs, providing only 5.7 hours of sunshine. Despite the chillier climatic conditions, Cabo Polonio receives the year's highest rainfall at 73mm (2.87"). Weather in June »

Weather in July

Anchoring the year's coldest month, July validates its winter credentials with the lowest average temperature of 14.6°C (58.3°F). The daylight duration is minimal, slightly recovering to 10.1 hours, a signature trait not seen in June or the subsequent August. Weather in July »

Weather in August

Escaping winter's grasp, August portrays the fortitude of Cabo Polonio's weather. The transition is marked by a slight increase in temperature to 16.5°C (61.7°F). This shift also sees an extend in daylight hours to 10.9, not prevalent in the preceding July or following September. Weather in August »

Weather in September

September witnesses the changing seasons as Cabo Polonio transitions from winter to spring. The shift from the cooler August to the warmer October is evident. It’s not uncommon to see the sun taking over the skies again, with daylight hours extending to 11.9 per day. Weather in September »

Weather in October

The ramp-up to summer sets the meteorological tone for October in Cabo Polonio. Stepping up from the transitioning weather of September, October transition into the summer-like conditions of November is quite visible. Substantial daylight of 13 hours graces the skies, bringing in a gradual increase in temperature. Weather in October »

Weather in November

November rings in the initial brushes of summer for Cabo Polonio. A burgeoning warmth envelopes the cityscape, with daylight extending to nearly 14 hours. With the introduction of summer characteristics, the city steps away from the cooler climes of October and towards the heat of December. Weather in November »

Weather in December

Cabo Polonio in December is the epitome of summer's arrival. The transformation from the pleasant weather of November to the intense heat of January is clear cut. Offering the longest daylight duration of 14.4 hours, the sky stays clear for extensive spells. Weather in December »

Frequently asked questions

What part of the year is the hottest?
January is the month when Cabo Polonio's temperatures reach their peak, with averages of 28.1°C (82.6°F) and lows of 18.1°C (64.6°F).
What is the least humid month?
January is the least humid month, with an average relative humidity of 68%.
How much does it rain?
Throughout the year, there are 129.5 rainfall days, and 692mm (27.24") of precipitation is accumulated.
What month has the most sunshine?
January has the most sunshine of the year, with an average of 10.5h of sunshine.
When is the highest UV index?
January through March and December, with an average maximum UV index of 6, are months with the highest UV index.
What is the driest month?
March is the month with the least rainfall. Rain falls for 12 days and accumulates 45mm (1.77") of precipitation.
What are the months with the lowest UV index?
April through September, with an average maximum UV index of 4, are months with the lowest UV index.
What is the month with the shortest days?
With an average of 9h and 54min of daylight, June has the shortest days of the year.
What part of the year is the coldest?
Cabo Polonio's coldest weather arrives in July, when temperatures average a high of 14.6°C (58.3°F) and a low of 7.9°C (46.2°F).
What is the most humid month?
July is the most humid month, with an average relative humidity of 80%.
What is the month with the least sunshine?
With an average of 5.4h of sunshine, July has the least sunshine of the year.
What is the rainiest month?
The month with the most rainfall is August, when the rain falls for 11.9 days and typically aggregates up to 84mm (3.31") of precipitation.
When are the longest days?
December has the longest days of the year, with an average of 14h and 24min of daylight.
Is there Daylight Saving Time (DST)?
Cabo Polonio does not utilize Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average temperature - Cabo Polonio, Uruguay
Average temperature
Cabo Polonio, Uruguay

The warmest month (with the highest average high temperature) is January (28.1°C).
The month with the lowest average high temperature is July (14.6°C).

The month with the highest average low temperature is February (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.9°C).

Average pressure - Cabo Polonio, Uruguay
Average pressure
Cabo Polonio, Uruguay

The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).

Average wind speed - Cabo Polonio, Uruguay
Average wind speed
Cabo Polonio, Uruguay

The windiest month (with the highest average wind speed) is September (17.6km/h).
The calmest month (with the lowest average wind speed) is May (14.7km/h).

Average humidity - Cabo Polonio, Uruguay
Average humidity
Cabo Polonio, Uruguay

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (68%).

Average rainfall - Cabo Polonio, Uruguay
Average rainfall
Cabo Polonio, Uruguay

The wettest month (with the highest rainfall) is August (84mm).
The driest month (with the least rainfall) is March (45mm).

Average rainfall days - Cabo Polonio, Uruguay
Average rainfall days
Cabo Polonio, Uruguay

The months with the highest number of rainy days are March and October (12 days).
The month with the least rainy days is June (9.1 days).

Average daylight / Average sunshine - Cabo Polonio, Uruguay
Average daylight / Average sunshine
Cabo Polonio, Uruguay

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

The month with the most sunshine is January (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 5h and 24min).

Average sunshine days - Cabo Polonio, Uruguay
Average sunshine days
Cabo Polonio, Uruguay

The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is February (15.3 days).

Average UV index - Cabo Polonio, Uruguay
Average UV index
Cabo Polonio, Uruguay

The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).

Average visibility - Cabo Polonio, Uruguay
Average visibility
Cabo Polonio, Uruguay

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).

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