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.
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).

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