May weather forecastRafael Perazza, Uruguay
May
Weather in May
Signs of winter onset become evident in Rafael Perazza as May ushers in. Cool temperatures make their presence known by replacing the mild weather of April. Despite having the highest relative humidity of the year at 78%, precipitation doesn't spoil the overall climate. A relative decrease in daylight hours and sunny days triggers a crisp evening chill. Low UV index ensures sunburns are of little concern in this month.Temperature
A minor decrease in the average high-temperature is observed during May, shifting from an agreeable 21.2°C (70.2°F) in April to a comfortable 17.8°C (64°F). Rafael Perazza in May observes a slight diminution in temperature from daily highs, recording a low-temperature average of 12.8°C (55°F).Humidity
In Rafael Perazza, the average relative humidity in May is 78%.Rainfall
In Rafael Perazza, during May, the rain falls for 10.5 days and regularly aggregates up to 49mm (1.93") of precipitation. In Rafael Perazza, Uruguay, during the entire year, the rain falls for 131.6 days and collects up to 707mm (27.83") of precipitation.Daylight
The average length of the day in May is 10h and 19min.On the first day of the month, sunrise is at 07:23 and sunset at 18:04. On the last day of May, in Rafael Perazza, sunrise is at 07:45 and sunset at 17:44 -03.
Sunshine
In May, the average sunshine is 5.8h.UV index
May, July and August, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 3 during May translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rafael Perazza, Uruguay
- Average high temperature in May: 17.8°C
The warmest month (with the highest average high temperature) is January (27.8°C).
The month with the lowest average high temperature is July (13.3°C).
- Average low temperature in May: 12.8°C
The month with the highest average low temperature is February (19.9°C).
The coldest month (with the lowest average low temperature) is July (8.7°C).
Average pressure in May
Rafael Perazza, Uruguay
- Average pressure in May: 1017.7mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in May
Rafael Perazza, Uruguay
- Average wind speed in May: 16.7km/h
The windiest month (with the highest average wind speed) is September (19.2km/h).
The calmest month (with the lowest average wind speed) is May (16.7km/h).
Average humidity in May
Rafael Perazza, Uruguay
- Average humidity in May: 78%
The months with the highest relative humidity are July, August and September (79%).
The month with the lowest relative humidity is January (64%).
Average rainfall in May
Rafael Perazza, Uruguay
- Average rainfall in May: 49mm
The wettest months (with the highest rainfall) are July and November (68mm).
The driest month (with the least rainfall) is January (46mm).
Average rainfall days in May
Rafael Perazza, Uruguay
- Average rainfall days in May: 10.5 days
The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is January (9.4 days).
Average daylight in May /
Average sunshine in May
Rafael Perazza, Uruguay
- Average daylight in May: 10h and 18min
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: 5h and 48min
The months with the most sunshine are January and December (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 42min).
Average sunshine days in May
Rafael Perazza, Uruguay
- Average sunshine days in May: 18 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is October (15.2 days).
Average UV index in May
Rafael Perazza, Uruguay
- Average UV index in May: 3
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are May, July and August (UV index 3).
Average cloud cover in May
Rafael Perazza, Uruguay
- Average cloud cover in May: 36
The month with the most cloud cover is July (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 19).
Average visibility in May
Rafael Perazza, 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).





