September weather forecastSan Antonio, Uruguay
September
Weather in September
September, the first month of the spring in San Antonio, is a refreshing month, with an average temperature fluctuating between 16.3°C (61.3°F) and 10.6°C (51.1°F).Temperature
During September, San Antonio observes a subtle ascent to a still refreshing 16.3°C (61.3°F) from August's 15.1°C (59.2°F) in the average high-temperature. San Antonio records an average nighttime low of 10.6°C (51.1°F) in September.Humidity
The months with the highest humidity in San Antonio are July through September, with an average relative humidity of 79%.Rainfall
In September, the rain falls for 9.7 days. Throughout September, 63mm (2.48") of precipitation is accumulated. Throughout the year, there are 131.6 rainfall days, and 707mm (27.83") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 54min.On the first day of September, sunrise is at 07:01 and sunset at 18:26. On the last day of the month, sunrise is at 06:21 and sunset at 18:46 -03.
Sunshine
In September, the average sunshine is 7.5h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Antonio, Uruguay
- Average high temperature in September: 16.3°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 September: 10.6°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 September
San Antonio, Uruguay
- Average pressure in September: 1017.8mbar
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 September
San Antonio, Uruguay
- Average wind speed in September: 19.2km/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 September
San Antonio, Uruguay
- Average humidity in September: 79%
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 September
San Antonio, Uruguay
- Average rainfall in September: 63mm
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 September
San Antonio, Uruguay
- Average rainfall days in September: 9.7 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 September /
Average sunshine in September
San Antonio, Uruguay
- Average daylight in September: 11h and 54min
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 30min
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 September
San Antonio, Uruguay
- Average sunshine days in September: 17.6 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 September
San Antonio, Uruguay
- Average UV index in September: 4
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 September
San Antonio, Uruguay
- Average cloud cover in September: 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 September
San Antonio, Uruguay
- Average visibility in September: 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).
