January weather forecast
San Justo, Argentina

January

Weather in January

January is a hot summer month in San Justo, Argentina, with an average temperature ranging between min 20.2°C (68.4°F) and max 30.3°C (86.5°F).

Temperature

In San Justo, Argentina, January records the highest average temperatures, peaking at 30.3°C (86.5°F) and reaching a low of 20.2°C (68.4°F).

Heat index

The heat index in January is calculated to be a tropical 33°C (91.4°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

January is the least humid month, with an average relative humidity of 57%.

Rainfall

In San Justo, during January, the rain falls for 7.4 days and regularly aggregates up to 38mm (1.5") of precipitation. Throughout the year, in San Justo, there are 100.3 rainfall days, and 586mm (23.07") of precipitation is accumulated.

Daylight

The average length of the day in January is 14h and 10min.
On the first day of January in San Justo, sunrise is at 05:44 and sunset at 20:10. On the last day of the month, sunrise is at 06:13 and sunset at 20:02 -03.

Sunshine

In January, the average sunshine is 10.5h.

UV index

The months with the highest UV index in San Justo are January through March, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in January interprets into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

What is the warmest month in San Justo?
January stands out as San Justo's warmest month, with an average high-temperature of 30.3°C (86.5°F) and a low-temperature of 20.2°C (68.4°F).
Is it hot in San Justo during January?
In San Justo, 30.3°C (86.5°F) is the average high-temperature and 20.2°C (68.4°F) is the average low-temperature during January. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in January is calculated to be 33°C (91.4°F).
What is the least humid month in San Justo?
With an average relative humidity of 57%, January is the least humid month.
What is the average humidity in January in San Justo?
In January, the average relative humidity in San Justo, Argentina, is 57%.
How much does it rain in San Justo in January?
In San Justo, in January, it is raining for 7.4 days, with typically 38mm (1.5") of accumulated precipitation.
What is the average length of the day in January in San Justo?
In San Justo, Argentina, the average day length in January is 14h and 10min.
When are sunrise and sunset in January in San Justo?
On the first day of January, sunrise is at 05:44 and sunset at 20:10. On the last day of the month, sunrise is at 06:13 and sunset at 20:02 -03.
How long on average sun shines in January in San Justo?
In San Justo, Argentina, the average sunshine duration in January is 10.5h.
What are the months with the highest UV index in San Justo?
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index intensity in January in San Justo?
The average daily maximum UV index in January in San Justo, Argentina, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
San Justo, Argentina
  • Average high temperature in January: 30.3°C

The warmest month (with the highest average high temperature) is January (30.3°C).
The month with the lowest average high temperature is July (13.8°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 (8.1°C).

Average pressure in January
San Justo, Argentina
  • Average pressure in January: 1011.8mbar

The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011mbar).

Average wind speed in January
San Justo, Argentina
  • Average wind speed in January: 14.6km/h

The windiest month (with the highest average wind speed) is September (16.4km/h).
The calmest month (with the lowest average wind speed) is March (13.8km/h).

Average humidity in January
San Justo, Argentina
  • Average humidity in January: 57%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is January (57%).

Average rainfall in January
San Justo, Argentina
  • Average rainfall in January: 38mm

The wettest month (with the highest rainfall) is November (70mm).
The driest month (with the least rainfall) is September (36mm).

Average rainfall days in January
San Justo, Argentina
  • Average rainfall days in January: 7.4 days

The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is August (5.8 days).

Average daylight in January /
Average sunshine in January
San Justo, Argentina
  • Average daylight in January: 14h and 1min

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).

  • Average sunshine in January: 10h and 3min

The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).

Average sunshine days in January
San Justo, Argentina
  • Average sunshine days in January: 21.9 days

The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is February (18.3 days).

Average UV index in January
San Justo, Argentina
  • Average UV index in January: 6

The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).

Average cloud cover in January
San Justo, Argentina
  • Average cloud cover in January: 16

The month with the most cloud cover is July (Cloud cover 36).
The month with the least cloud cover is January (Cloud cover 16).

Average visibility in January
San Justo, Argentina
  • Average visibility in January: 10km

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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