April weather forecast
San Juan, Argentina

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Weather in April

April continues to cool the city as thermal attire becomes indispensable. A notable decline in temperatures is observed, with highs settling near 22.9°C (73.2°F). This month is known for its excellent visibility, with clear skies throughout the day. However, the cooler air results in a slight increase in relative humidity up to 52%. April's weather also brings with it the lowest rainfall of the year, a mere total of 3mm (0.12") on average.

Temperature

A subtle shift in San Juan's weather is observed as March turns into April, with the average high temperature reducing from a moderately hot 26.7°C (80.1°F) to an agreeable 22.9°C (73.2°F). During April, San Juan records a consistent average nighttime temperature of 12.6°C (54.7°F).

Humidity

April and May, with an average relative humidity of 52%, are the most humid months.

Rainfall

In April, the rain falls for 3.8 days. Throughout April, 3mm (0.12") of precipitation is accumulated. Throughout the year, in San Juan, there are 50.2 rainfall days, and 94mm (3.7") of precipitation is accumulated.

Snowfall

In San Juan, Argentina, snow does not fall in January through June, October through December.

Daylight

In April, the average length of the day is 11h and 18min.
On the first day of April in San Juan, sunrise is at 07:45 and sunset at 19:29. On the last day of the month, sunrise is at 08:05 and sunset at 18:57 -03.

Sunshine

The months with the least sunshine in San Juan are March through May and October, with an average of 9.7h of sunshine.

UV index

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 during April translates into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What is the temperature in April in San Juan?

The average high-temperature, in April, in San Juan, is 22.9°C (73.2°F), while the average low-temperature is 12.6°C (54.7°F). In February, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 29°C (84.2°F).

What are the most humid months in San Juan?

The months with the highest humidity are April and May, with an average relative humidity of 52%.

What is the average humidity in April in San Juan?

In April, the average relative humidity is 52%.

How many days does it rain in April in San Juan?

In April, in San Juan, Argentina, the rain falls for 3.8 days. Throughout April, 3mm (0.12") of precipitation is accumulated.

When it does not snow in San Juan?

January through June, October through December are months without snowfall in San Juan, Argentina.

How many hours of daylight does San Juan have in April?

In April, the average day length is 11h and 18min.

When is the sunrise / sunset in April in San Juan?

On the first day of April in San Juan, sunrise is at 07:45 and sunset at 19:29. On the last day of the month, sunrise is at 08:05 and sunset at 18:57 -03.

What are the months with the least sunshine in San Juan?

March through May and October, with an average of 9.7h of sunshine, are months with the least sunshine in San Juan.

How many hours of sunshine does San Juan have in April?

In San Juan, the average sunshine duration in April is 9.7h.

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

In April, the average daily maximum UV index in San Juan is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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 Juan, Argentina

Average temperature in April - San Juan, Argentina
  • Average high temperature in April: 22.9°C

The warmest month (with the highest average high temperature) is January (30.6°C).
The month with the lowest average high temperature is July (14.6°C).

  • Average low temperature in April: 12.6°C

The month with the highest average low temperature is January (19.4°C).
The coldest month (with the lowest average low temperature) is July (4.5°C).

Average pressure in April
San Juan, Argentina

Average pressure in April - San Juan, Argentina
  • Average pressure in April: 1015.4mbar

The month with the highest atmospheric pressure is July (1018.1mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).

Average wind speed in April
San Juan, Argentina

Average wind speed in April - San Juan, Argentina
  • Average wind speed in April: 9.4km/h

The windiest months (with the highest average wind speed) are October and November (12.2km/h).
The calmest month (with the lowest average wind speed) is May (8.8km/h).

Average humidity in April
San Juan, Argentina

Average humidity in April - San Juan, Argentina
  • Average humidity in April: 52%

The months with the highest relative humidity are April and May (52%).
The month with the lowest relative humidity is November (35%).

Average rainfall in April
San Juan, Argentina

Average rainfall in April - San Juan, Argentina
  • Average rainfall in April: 3mm

The wettest month (with the highest rainfall) is January (29mm).
The driest months (with the least rainfall) are June and July (1mm).

Average rainfall days in April
San Juan, Argentina

Average rainfall days in April - San Juan, Argentina
  • Average rainfall days in April: 3.8 days

The month with the highest number of rainy days is January (9.2 days).
The month with the least rainy days is August (1.3 days).

Average snowfall in April
San Juan, Argentina

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

The month with the highest snowfall is July (4mm).
The months with the least snowfall are January, February, March, April, May, June, October, November and December (0mm).

Average snowfall days in April
San Juan, Argentina

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

The months with the highest number of snowfall days are July and September (0.4 days).
The months with the least snowfall days are January, February, March, April, May, June, October, November and December (0 days).

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

Average daylight in April / Average sunshine in April - San Juan, Argentina
  • Average daylight in April: 11h and 2min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in April: 9h and 4min

The months with the most sunshine are August, September and November (Average sunshine: 9h and 54min).
The months with the least sunshine are March, April, May and October (Average sunshine: 9h and 42min).

Average sunshine days in April
San Juan, Argentina

Average sunshine days in April - San Juan, Argentina
  • Average sunshine days in April: 24 days

The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is January (15.4 days).

Average UV index in April
San Juan, Argentina

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

The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are May, June and July (UV index 3).

Average cloud cover in April
San Juan, Argentina

Average cloud cover in April - San Juan, Argentina
  • Average cloud cover in April: 12

The months with the most cloud cover are March, April and May (Cloud cover 12).
The month with the least cloud cover is August (Cloud cover 8).

Average visibility in April
San Juan, Argentina

Average visibility in April - San Juan, 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 Juan, Argentina

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