May weather forecast
Los Cerros de San Juan, Uruguay

May

Weather in May

The last month of the autumn, May, is another refreshing month in Los Cerros de San Juan, Uruguay, with an average temperature ranging between max 17.6°C (63.7°F) and min 13.9°C (57°F).

Temperature

With the commencement of May, Los Cerros de San Juan records a moderate temperature decline, with the average high easing from April's agreeable 20.9°C (69.6°F) to an enjoyable 17.6°C (63.7°F). The temperature during May nights demonstrates a small drop from the daytime highs, settling to an average of 13.9°C (57°F).

Humidity

The average relative humidity in May is 77%.

Rainfall

The month with the least rainfall is May, when the rain falls for 8.6 days and typically collects 43mm (1.69") of precipitation.

Daylight

In Los Cerros de San Juan, the average length of the day in May is 10h and 20min.
On the first day of May, sunrise is at 07:27 and sunset at 18:09. On the last day of the month, sunrise is at 07:48 and sunset at 17:50 -03.

Sunshine

In May, the average sunshine is 6.6h.

UV index

In Los Cerros de San Juan, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

What are May temperatures?
In Los Cerros de San Juan, 17.6°C (63.7°F) is the average high-temperature and 13.9°C (57°F) is the average low-temperature during May. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in January is computed to be 29°C (84.2°F).
What is the average humidity in May?
In Los Cerros de San Juan, the average relative humidity in May is 77%.
What is the driest month?
May is the month with the least rainfall. Rain falls for 8.6 days and accumulates 43mm (1.69") of precipitation.
How many days does it rain in May?
In Los Cerros de San Juan, in May, it is raining for 8.6 days, with typically 43mm (1.69") of accumulated precipitation.
How many hours of daylight does Los Cerros de San Juan have in May?
The average day length in May is 10h and 20min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 07:27 and sunset at 18:09. On the last day of the month, sunrise is at 07:48 and sunset at 17:50 -03.
How long on average sun shines in May?
The average sunshine duration in May is 6.6h.
What is the UV index reading in May?
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Los Cerros de San Juan, Uruguay
Average temperature in May
Los Cerros de San Juan, Uruguay
  • Average high temperature in May: 17.6°C

The warmest month (with the highest average high temperature) is January (27.2°C).
The month with the lowest average high temperature is July (13.1°C).

  • Average low temperature in May: 13.9°C

The month with the highest average low temperature is January (21.3°C).
The coldest month (with the lowest average low temperature) is July (9.6°C).

Average pressure in May - Los Cerros de San Juan, Uruguay
Average pressure in May
Los Cerros de San Juan, Uruguay
  • Average pressure in May: 1017.8mbar

The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in May - Los Cerros de San Juan, Uruguay
Average wind speed in May
Los Cerros de San Juan, Uruguay
  • Average wind speed in May: 19.4km/h

The windiest month (with the highest average wind speed) is September (21.1km/h).
The calmest month (with the lowest average wind speed) is December (18.1km/h).

Average humidity in May - Los Cerros de San Juan, Uruguay
Average humidity in May
Los Cerros de San Juan, Uruguay
  • Average humidity in May: 77%

The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is January (66%).

Average rainfall in May - Los Cerros de San Juan, Uruguay
Average rainfall in May
Los Cerros de San Juan, Uruguay
  • Average rainfall in May: 43mm

The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is May (43mm).

Average rainfall days in May - Los Cerros de San Juan, Uruguay
Average rainfall days in May
Los Cerros de San Juan, Uruguay
  • Average rainfall days in May: 8.6 days

The month with the highest number of rainy days is March (11 days).
The month with the least rainy days is June (8.2 days).

Average daylight in May / Average sunshine in May - Los Cerros de San Juan, Uruguay
Average daylight in May /
Average sunshine in May
Los Cerros de San Juan, Uruguay
  • Average daylight in May: 10h and 2min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in May: 6h and 4min

The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).

Average sunshine days in May - Los Cerros de San Juan, Uruguay
Average sunshine days in May
Los Cerros de San Juan, Uruguay
  • Average sunshine days in May: 20.2 days

The month with the most sunshine days is August (21.3 days).
The month with the least sunshine days is February (16.6 days).

Average UV index in May - Los Cerros de San Juan, Uruguay
Average UV index in May
Los Cerros de San Juan, Uruguay
  • Average UV index in May: 4

The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is July (UV index 3).

Average cloud cover in May - Los Cerros de San Juan, Uruguay
Average cloud cover in May
Los Cerros de San Juan, Uruguay
  • Average cloud cover in May: 35

The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 17).

Average visibility in May - Los Cerros de San Juan, Uruguay
Average visibility in May
Los Cerros de San Juan, Uruguay
  • 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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