Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Buenos Aires's September reports an average high-temperature of a still refreshing 18.2°C (64.8°F), exhibiting a minor difference from August. During the month of September, Buenos Aires anticipates a mean low-temperature of 10.4°C (50.7°F).Humidity
In September, the average relative humidity is 74%.Rainfall
In Buenos Aires, during September, the rain falls for 9 days and regularly aggregates up to 44mm (1.73") of precipitation. 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, in September, the average water temperature is 14.2°C (57.6°F).Note: Swimming at temperatures less than 10°C (50°F) in 14.2°C (57.6°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 13°C (55.4°F) without adequate warmth can be discomforting.
Daylight
In Buenos Aires, the average length of the day in September is 11h and 53min.On the first day of the month, sunrise is at 07:11 and sunset at 18:35. On the last day of September, sunrise is at 06:30 and sunset at 18:56 -03.
Sunshine
In Buenos Aires, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Buenos Aires in September?
What is the average humidity in September in Buenos Aires?
How many days does it rain in September in Buenos Aires?
What is the water temperature in September in Buenos Aires?
How many hours of daylight does Buenos Aires have in September?
When is the sunrise / sunset in September in Buenos Aires?
How long on average sun shines in September in Buenos Aires?
What is the UV index reading in September in Buenos Aires?
Average temperature in September
Buenos Aires, Argentina
- Average high temperature in September: 18.2°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 September: 10.4°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 September
Buenos Aires, Argentina
- Average pressure in September: 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 September
Buenos Aires, Argentina
- Average wind speed in September: 15.8km/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 September
Buenos Aires, Argentina
- Average humidity in September: 74%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is January (56%).
Average rainfall in September
Buenos Aires, Argentina
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is June (38mm).
Average rainfall days in September
Buenos Aires, Argentina
- Average rainfall days in September: 9 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 September
Buenos Aires, Argentina
- Average sea temperature in September: 14.2°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 September /
Average sunshine in September
Buenos Aires, Argentina
- Average daylight in September: 11h and 5min
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 September: 7h and 5min
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 September
Buenos Aires, Argentina
- Average sunshine days in September: 18.4 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 September
Buenos Aires, Argentina
- Average UV index in September: 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 September
Buenos Aires, Argentina
- Average cloud cover in September: 33
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 September
Buenos Aires, Argentina
- Average visibility in September: 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).
Buenos Aires, Argentina
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