September weather forecastHenderson, Argentina
September
Weather in September
September, the first month of the spring in Henderson, is still a comfortable month, with an average temperature varying between 18.5°C (65.3°F) and 7.8°C (46°F).Temperature
Henderson, Argentina, observes a minor difference in average high-temperatures between August's 16.7°C (62.1°F) and September's 18.5°C (65.3°F). The average temperature during September nights in Henderson is registered at a chilly 7.8°C (46°F).Humidity
In September, the average relative humidity in Henderson is 67%.Rainfall
In Henderson, Argentina, in September, during 7.4 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 88.6 rainfall days, and 413mm (16.26") of precipitation is accumulated.Snowfall
In Henderson, snow does not fall in January through June, August through December.Daylight
The average length of the day in September in Henderson is 11h and 53min.On the first day of the month, sunrise is at 07:25 and sunset at 18:47. On the last day of September, sunrise is at 06:43 and sunset at 19:10 -03.
Sunshine
In September, the average sunshine in Henderson is 8.1h.UV index
In Henderson, the average daily maximum UV index in September 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 average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Henderson, Argentina
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is January (32°C).
The month with the lowest average high temperature is July (13.6°C).
- Average low temperature in September: 7.8°C
The month with the highest average low temperature is January (16.8°C).
The coldest month (with the lowest average low temperature) is July (5.4°C).
Average pressure in September
Henderson, Argentina
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1010.3mbar).
Average wind speed in September
Henderson, Argentina
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is September (15.7km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).
Average humidity in September
Henderson, Argentina
- Average humidity in September: 67%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is January (48%).
Average rainfall in September
Henderson, Argentina
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (60mm).
The driest months (with the least rainfall) are June and July (14mm).
Average rainfall days in September
Henderson, Argentina
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is October (10.2 days).
The month with the least rainy days is August (4.1 days).
Average snowfall days in September
Henderson, Argentina
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Henderson, Argentina
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is December (Average sunshine: 11h and 30min).
The month with the least sunshine is June (Average sunshine: 7h and 30min).
Average sunshine days in September
Henderson, Argentina
- Average sunshine days in September: 21.3 days
The month with the most sunshine days is August (26.2 days).
The months with the least sunshine days are October and November (19.2 days).
Average UV index in September
Henderson, Argentina
- Average UV index in September: 4
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 3).
Average cloud cover in September
Henderson, Argentina
- Average cloud cover in September: 30
The month with the most cloud cover is May (Cloud cover 34).
The month with the least cloud cover is January (Cloud cover 14).
Average visibility in September
Henderson, Argentina
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).
