April weather forecast
San Luis, Argentina

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Weather in April

April in San Luis ushers in the splendid display of autumn, accompanied by mildly cooler temperatures. With the high temperatures relatively low at 22.7°C (72.9°F), April is certainly not as warm as the previous months. Transitioning from April to May, the decreasing temperature trend continues, with the humidity staying fairly consistent. April also witnesses a reduction in rainfall, paving the way for more dry and sun-kissed days. The swift drop in temperature sets a perfect backdrop for experiencing the rich autumn foliage in April.

Temperature

A subtle shift in San Luis's weather is observed as March turns into April, with the average high temperature reducing from a warm 26.9°C (80.4°F) to an agreeable 22.7°C (72.9°F). During the nights in April, the temperature in San Luis averages to a moderate 13.8°C (56.8°F).

Humidity

In April, the average relative humidity is 60%.

Rainfall

In April, the rain falls for 9.1 days. Throughout April, 30mm (1.18") of precipitation is accumulated. In San Luis, during the entire year, the rain falls for 102.6 days and collects up to 350mm (13.78") of precipitation.

Snowfall

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

Daylight

In San Luis, the average length of the day in April is 11h and 15min.
On the first day of the month, sunrise is at 07:37 and sunset at 19:20. On the last day of April, in San Luis, sunrise is at 07:58 and sunset at 18:46 -03.

Sunshine

In April, the average sunshine is 9.1h.

UV index

The average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 during April translates into the following guidance:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jan 25, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the usual temperature for San Luis in April?

The high-temperature, in April, in San Luis, is 22.7°C (72.9°F), while the low-temperature averages to 13.8°C (56.8°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in February is calculated to be 30°C (86°F).

What is the average humidity in April in San Luis?

In April, the average relative humidity in San Luis, Argentina, is 60%.

How much does it rain in San Luis in April?

In San Luis, in April, it is raining for 9.1 days, with typically 30mm (1.18") of accumulated precipitation.

When it does not snow in San Luis?

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

What is the average length of the day in April in San Luis?

In April, the average day length is 11h and 15min.

What time are sunrise and sunset in April in San Luis?

On the first day of April in San Luis, Argentina, sunrise is at 07:37 and sunset at 19:20. On the last day of the month, sunrise is at 07:58 and sunset at 18:46 -03.

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

The average sunshine duration in April in San Luis is 9.1h.

How high is the UV index in April in San Luis?

The average daily maximum UV index in April in San Luis, Argentina, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in April
San Luis, Argentina

Average temperature in April - San Luis, Argentina
  • Average high temperature in April: 22.7°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 April: 13.8°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 pressure in April
San Luis, Argentina

Average pressure in April - San Luis, Argentina
  • Average pressure in April: 1014.6mbar

The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).

Average wind speed in April
San Luis, Argentina

Average wind speed in April - San Luis, Argentina
  • Average wind speed in April: 14.4km/h

The windiest month (with the highest average wind speed) is October (18.6km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).

Average humidity in April
San Luis, Argentina

Average humidity in April - San Luis, Argentina
  • Average humidity in April: 60%

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

Average rainfall in April
San Luis, Argentina

Average rainfall in April - San Luis, Argentina
  • Average rainfall in April: 30mm

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

Average rainfall days in April
San Luis, Argentina

Average rainfall days in April - San Luis, Argentina
  • Average rainfall days in April: 9.1 days

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

Average snowfall in April
San Luis, Argentina

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

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

Average snowfall days in April
San Luis, Argentina

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

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

Average daylight in April /
Average sunshine in April
San Luis, Argentina

Average daylight in April / Average sunshine in April - San Luis, Argentina
  • Average daylight in April: 11h and 1min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in April: 9h and 1min

The months with the most sunshine are January and December (Average sunshine: 9h and 36min).
The month with the least sunshine is May (Average sunshine: 9h and 0min).

Average sunshine days in April
San Luis, Argentina

Average sunshine days in April - San Luis, Argentina
  • Average sunshine days in April: 19.5 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (12.5 days).

Average UV index in April
San Luis, Argentina

Average UV index in April - San Luis, Argentina
  • Average UV index in April: 5

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

Average cloud cover in April
San Luis, Argentina

Average cloud cover in April - San Luis, Argentina
  • Average cloud cover in April: 21

The months with the most cloud cover are April and May (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in April
San Luis, Argentina

Average visibility in April - San Luis, Argentina
  • Average visibility in April: 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).

San Luis, Argentina

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