May weather forecast
San Juan, Argentina

Weather in May

May, the last month of the autumn, in San Juan, is also an enjoyable month, with average temperature fluctuating between 19°C (66.2°F) and 9.2°C (48.6°F).

Temperature

In May, the average high-temperature marginally drops, from a pleasant 22.9°C (73.2°F) in April, to an enjoyable 19°C (66.2°F). In San Juan, the average low-temperature is 9.2°C (48.6°F).

Humidity

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

Rainfall

In May, the rain falls for 2.3 days. Throughout May, 2mm (0.08") of precipitation is accumulated. In San Juan, Argentina, during the entire year, the rain falls for 50.2 days and collects up to 94mm (3.7") of precipitation.

Snowfall

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

Daylight

In May, the average length of the day is 10.5h.

Sunshine

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

UV index

May through July, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: In May, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What are the most humid months in San Juan?

April and May, with an average relative humidity of 52%, are most humid months in San Juan, Argentina.

What is the average humidity in May in San Juan?

The average relative humidity in May in San Juan, Argentina, is 52%.

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

In May, in San Juan, Argentina, the rain falls for 2.3 days. Throughout May, 2mm (0.08") of precipitation is accumulated.

When it does not snow in San Juan?

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

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

In May, the average length of the day in San Juan is 10.5h.

What is the month with the least sunshine in San Juan?

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

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

The average sunshine in May in San Juan is 9.7h.

What are the months with the lowest UV index in San Juan?

May through July, with an average maximum UV index of 3, are months with the lowest UV index in San Juan.

What is the UV index intensity in May in San Juan?

The average daily maximum UV index in May in San Juan is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
San Juan, Argentina

Average temperature in May - San Juan, Argentina
  • Average high temperature in May: 19°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 May: 9.2°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).

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Average pressure in May
San Juan, Argentina

Average pressure in May - San Juan, Argentina
  • Average pressure in May: 1016.4mbar

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

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Average wind speed in May
San Juan, Argentina

Average wind speed in May - San Juan, Argentina
  • Average wind speed in May: 8.8km/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).

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Average humidity in May
San Juan, Argentina

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

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

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Average rainfall in May
San Juan, Argentina

Average rainfall in May - San Juan, Argentina
  • Average rainfall in May: 2mm

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

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Average rainfall days in May
San Juan, Argentina

Average rainfall days in May - San Juan, Argentina
  • Average rainfall days in May: 2.3 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).

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Average snowfall in May
San Juan, Argentina

Average snowfall in May - San Juan, Argentina
  • Average snowfall in May: 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).

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Average snowfall days in May
San Juan, Argentina

Average snowfall days in May - San Juan, Argentina
  • Average snowfall days in May: 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).

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

Average daylight in May / Average sunshine in May - San Juan, Argentina
  • Average daylight in May: 10.5h

The month with the longest days is December (Average daylight: 14.2h).
The month with the shortest days is June (Average daylight: 10.1h).

  • Average sunshine in May: 9.7h

The months with the most sunshine are August, September and November (Average sunshine: 9.9h).
The months with the least sunshine are March, April, May and October (Average sunshine: 9.7).

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Average sunshine days in May
San Juan, Argentina

Average sunshine days in May - San Juan, Argentina
  • Average sunshine days in May: 28.2 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).

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Average UV index in May
San Juan, Argentina

Average UV index in May - San Juan, Argentina
  • Average UV index in May: 3

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).

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Average cloud cover in May
San Juan, Argentina

Average cloud cover in May - San Juan, Argentina
  • Average cloud cover in May: 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).

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Average visibility in May
San Juan, Argentina

Average visibility in May - San Juan, Argentina
  • Average visibility in May: 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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