San Juan
Argentina
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
San Juan, Argentina

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

Temperature

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

Humidity

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

Rainfall

In San Juan, it is raining for 2.3 days, with typically 2mm (0.08") of accumulated precipitation. Throughout the year, there are 50.2 rainfall days, and 94mm (3.7") of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in San Juan, Argentina, 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 in San Juan. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in May in San Juan?

In San Juan, Argentina, in May, the average high-temperature is 19°C (66.2°F), and the average low-temperature is 9.2°C (48.6°F).

What is the most humid month 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?

In May, the average relative humidity in San Juan is 52%.

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

In San Juan, in May, during 2.3 rainfall days, 2mm (0.08") of precipitation is typically accumulated.

When it does not snow in San Juan?

January through June, October through December are months without snowfall.

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, Argentina, 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 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 reading in May in San Juan?

In San Juan, Argentina, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.
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).

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

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

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

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

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 lowest number of rainy days is August (1.3 days).

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

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

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

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

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 shortest days is June (Average daylight: 10.1h).

  • Average sunshine in May: 9.7h

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

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).
Months with the lowest UV index are May, June and July (UV index 3).