San Luis
Argentina
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
San Luis, Argentina

January is a tropical summer month in San Luis, Argentina, with average temperature fluctuating between 20.1°C (68.2°F) and 31°C (87.8°F).

Temperature

With an average high-temperature of 31°C (87.8°F) and an average low-temperature of 20.1°C (68.2°F), January is the warmest month.

Heat index

In January, the average heat index is evaluated at a tropical 31.5°C (88.7°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, metabolic differences, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In January, the average relative humidity is 44%.

Rainfall

January is the month with the most rainfall. Rain falls for 12.9 days and accumulates 59mm (2.32") of precipitation.

Snowfall

In San Luis snow does not fall through May, October through December.

Daylight

The average length of the day in January is 14.1h.

Sunshine

Months with the most sunshine are January and December, with an average of 9.6h of sunshine.

UV index

Months with the highest UV index in San Luis are January, February, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the warmest month in San Luis?

With an average high-temperature of 31°C (87.8°F) and an average low-temperature of 20.1°C (68.2°F), January is the warmest month in San Luis.

What is the temperature in January in San Luis?

In January, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 20.1°C (68.2°F). In January, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines both air temperature and relative humidity, is evaluated at 31.5°C (88.7°F).

What is the average humidity in January in San Luis?

In January, the average relative humidity in San Luis, Argentina, is 44%.

How much does it rain in San Luis in January?

In San Luis, in January, during 12.9 rainfall days, 59mm (2.32") of precipitation is typically accumulated.

What is the wettest month in San Luis?

January is the month with the most rainfall in San Luis. Rain falls for 12.9 days and accumulates 59mm (2.32") of precipitation.

When it does not snow in San Luis?

In San Luis snow does not fall in January through May, October through December.

How many hours of daylight does San Luis have in January?

In San Luis, Argentina, the average length of the day in January is 14.1h.

What is the month with the most sunshine in San Luis?

January and December, with an average of 9.6h of sunshine, are months with the most sunshine in San Luis.

How long on average sun shines in January in San Luis?

The average sunshine in January in San Luis, Argentina, is 9.6h.

When is the highest UV index in San Luis?

January, February, October through December, with an average maximum UV index of 6, are months with the highest UV index in San Luis.

What is the UV index reading in January in San Luis?

In San Luis, Argentina, the average daily maximum UV index in January is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation.
Average temperature in January - San Luis, Argentina
  • Average high temperature in January: 31°C

The warmest month (with the highest average high temperature) is January (31°C).
The month with the lowest average high temperature is July (14.6°C).

  • Average low temperature in January: 20.1°C

The month with the highest average low temperature is January (20.1°C).
The coldest month (with the lowest average low temperature) is July (5.9°C).

Average humidity in January - San Luis, Argentina
  • Average humidity in January: 44%

The month with the highest relative humidity is May (63%).
The month with the lowest relative humidity is December (43%).

Average rainfall in January - San Luis, Argentina
  • Average rainfall in January: 59mm

The wettest month (with the highest rainfall) is January (59mm).
Driest months (with the lowest rainfall) are July and August (2mm).

Average rainfall days in January - San Luis, Argentina
  • Average rainfall days in January: 12.9 days

The month with the highest number of rainy days is November (14.2 days).
The month with the lowest number of rainy days is August (1.7 days).

Average snowfall in January - San Luis, Argentina
  • Average snowfall in January: 0mm

The month with the highest snowfall is June (6mm).
Months with the lowest snowfall are January, February, March, April, May, October, November and December (0mm).

Average snowfall days in January - San Luis, Argentina
  • Average snowfall days in January: 0 days

The month with the highest number of snowfall days is July (0.5 days).
Months with the lowest number of snowfall days are January, February, March, April, May, October, November and December (0 days).

Average daylight in January / Average sunshine in January - San Luis, Argentina
  • Average daylight in January: 14.1h

The month with the longest days is December (Average daylight: 14.3h).
The month with shortest days is June (Average daylight: 10h).

  • Average sunshine in January: 9.6h

Months with most sunshine are January and December (Average sunshine: 9.6h).
The month with least sunshine is May (Average sunshine: 9h).

Average UV index in January - San Luis, Argentina
  • Average UV index in January: 6

Months with the highest UV index are January, February, October, November and December (UV index 6).
Months with the lowest UV index are May and June (UV index 3).