Buenos Aires
Argentina
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Buenos Aires, Argentina

The Congress Square monument in Buenos Aires, Argentina, in spring
The Congress Square monument in Buenos Aires, Argentina, in spring
The temperatures are high in January and set a warm mood for the year. Ranging between 20°C (68°F) and 29°C (84.2°F) the temperatures make a perfect time for a swim, with the sea temperature measuring up to 23°C (73.4°F).
The humidity measures 65%, high enough due to the high rainfall amount in January, measuring up to 119.4mm (4.7"). Expect a few lightning flashes and thunderstorms common during this time.

What is the warmest month in Buenos Aires?

With an average high-temperature of 30.4°C (86.7°F) and an average low-temperature of 20.2°C (68.4°F), January is the warmest month in Buenos Aires.

What is the temperature in January in Buenos Aires?

In Buenos Aires, in January, the average high-temperature is 30.4°C (86.7°F), and the average low-temperature is 20.2°C (68.4°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, in January is appraised at 34.8°C (94.6°F).

What is the average humidity in January in Buenos Aires?

In January, the average relative humidity in Buenos Aires is 65%.

How much does it rain in Buenos Aires in January?

In Buenos Aires, in January, it is raining for 9.5 days, with typically 167.5mm (6.6") of accumulated precipitation.

When is the sea warmest in Buenos Aires?

January is the month with the warmest seawater in Buenos Aires, Argentina, with an average sea temperature of 25°C (77°F).

What is the water temperature in January in Buenos Aires?

In January, the average sea temperature is 25°C (77°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in January in Buenos Aires?

In Buenos Aires, Argentina, the average length of the day in January is 14.2h.

What month has the most sunshine in Buenos Aires?

January has the most sunshine of the year in Buenos Aires, Argentina, with an average of 8.9h of sunshine.

How long on average sun shines in January in Buenos Aires?

In January, the average sunshine in Buenos Aires is 8.9h.

What are the months with the highest UV index in Buenos Aires?

January and December, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index reading in January in Buenos Aires?

In Buenos Aires, the average daily maximum UV index in January is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in January - Buenos Aires, Argentina
  • Average high temperature in January: 30.4°C

The warmest month (with the highest average high temperature) is January (30.4°C).
The month with the lowest average high temperature is July (16°C).

  • Average low temperature in January: 20.2°C

The month with the highest average low temperature is January (20.2°C).
The coldest month (with the lowest average low temperature) is July (7.7°C).

Average humidity in January - Buenos Aires, Argentina
  • Average humidity in January: 65%

Months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is December (64%).

Average rainfall in January - Buenos Aires, Argentina
  • Average rainfall in January: 167.5mm

The wettest month (with the highest rainfall) is March (172.3mm).
The driest month (with the lowest rainfall) is June (54.8mm).

Average rainfall days in January - Buenos Aires, Argentina
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is March (10 days).
The month with the lowest number of rainy days is May (6.6 days).

Average sea temperature in January - Buenos Aires, Argentina
  • Average sea temperature in January: 25°C

The best month for swimming (with the highest average sea temperature) is January (25°C).
The coldest month (with the lowest average sea temperature) is July (11.9°C).

Average daylight in January / Average sunshine in January - Buenos Aires, Argentina
  • Average daylight in January: 14.2h

The month with the longest days is December (Average daylight: 14.4h).
The month with shortest days is June (Average daylight: 9.9h).

  • Average sunshine in January: 8.9h

The month with most sunshine is January (Average sunshine: 8.9h).
Months with least sunshine are June and July (Average sunshine: 4.8).

Average UV index in January - Buenos Aires, Argentina
  • Average UV index in January: 12

Months with the highest UV index are January and December (UV index 12).
Months with the lowest UV index are June and July (UV index 2).