May weather forecastBuenos Aires, Argentina
May
Weather in May
May brings the true feel of autumn to Buenos Aires with significantly cooler weather. Temperatures fall to 18.7°C (65.7°F) for average highs and down to 12.2°C (54°F) for lows. Ample sunshine ensures that days are mild enough for outdoor activities. Rainfall is evenly spread through the month, rendering a crisp freshness in the air. Winds remain light to moderate, adding to the overall comfort of the season.Temperature
May ushers in a minute temperature change, with average high-temperatures reducing from April's pleasant 22.8°C (73°F) to a refreshing 18.7°C (65.7°F). During the month of May, the temperature in Buenos Aires generally drops to a low average of 12.2°C (54°F).Humidity
The most humid month is May, with an average relative humidity of 76%.Rainfall
In May, in Buenos Aires, the rain falls for 8.5 days. Throughout May, 46mm (1.81") of precipitation is accumulated. In Buenos Aires, during the entire year, the rain falls for 108.2 days and collects up to 629mm (24.76") of precipitation.Sea temperature
In Buenos Aires, the average seawater temperature in May is 16.1°C (61°F).Note: Most people find it challenging to enjoy swimming in water that is 16.1°C (61°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.
Daylight
In May, the average length of the day in Buenos Aires is 10h and 19min.On the first day of May, sunrise is at 07:29 and sunset at 18:11. On the last day of the month, sunrise is at 07:51 and sunset at 17:51 -03.
Sunshine
In May, the average sunshine is 6.9h.UV index
The average daily maximum UV index in May in Buenos Aires is 4. 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 UV index of 4 during May translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Buenos Aires, Argentina
- Average high temperature in May: 18.7°C
The warmest month (with the highest average high temperature) is January (30.9°C).
The month with the lowest average high temperature is July (14°C).
- Average low temperature in May: 12.2°C
The month with the highest average low temperature is January (20°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in May
Buenos Aires, Argentina
- Average pressure in May: 1017.9mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in May
Buenos Aires, Argentina
- Average wind speed in May: 13.6km/h
The windiest month (with the highest average wind speed) is September (15.8km/h).
The calmest month (with the lowest average wind speed) is March (13.2km/h).
Average humidity in May
Buenos Aires, Argentina
- Average humidity in May: 76%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is January (56%).
Average rainfall in May
Buenos Aires, Argentina
- Average rainfall in May: 46mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is June (38mm).
Average rainfall days in May
Buenos Aires, Argentina
- Average rainfall days in May: 8.5 days
The month with the highest number of rainy days is October (10.8 days).
The month with the least rainy days is August (7 days).
Average sea temperature in May
Buenos Aires, Argentina
- Average sea temperature in May: 16.1°C
The best month for swimming (with the highest average sea temperature) is January (25°C).
The coldest month (with the lowest average sea temperature) is July (11.9°C).
Average daylight in May /
Average sunshine in May
Buenos Aires, Argentina
- 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: 6h and 54min
The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in May
Buenos Aires, Argentina
- Average sunshine days in May: 19.8 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is October (17.4 days).
Average UV index in May
Buenos Aires, Argentina
- Average UV index in May: 4
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in May
Buenos Aires, Argentina
- Average cloud cover in May: 35
The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in May
Buenos Aires, Argentina
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
