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 68°F (20°C) and 84.2°F (29°C) the temperature makes it a perfect time for a swim, as the sea temperature itself is measuring up to 73.4°F (23°C). The humidity measures 65%, high enough due to the high rainfall amount in January measuring up to 4.7" (119.4mm). Expect a few lightning flashes and thunderstorms common during this time.
  • The 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).

  • The 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).

  • The 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%).

  • The 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).

  • The 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).

  • The 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).

  • The average daylight in January: 14h

Months with the longest days are January, November and December (Average daylight: 14h).
Months with shortest days are May, June and July (Average daylight: 10h).

  • The 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).

  • The 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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