September weather forecastCastelar, Argentina
September
Weather in September
The first month of the spring, September, is still a comfortable month in Castelar, Argentina, with an average temperature fluctuating between 18.1°C (64.6°F) and 9.7°C (49.5°F).Temperature
September's arrival shows an average high-temperature of a still refreshing 18.1°C (64.6°F), hardly different from the previous month. In Castelar, the average temperature during the nights of September drops to a chilly 9.7°C (49.5°F).Humidity
In September, the average relative humidity in Castelar is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 4.6 days and accumulates 5mm (0.2") of precipitation.Daylight
In September, the average length of the day in Castelar is 11h and 53min.On the first day of September, sunrise is at 07:12 and sunset at 18:36. On the last day of the month, sunrise is at 06:31 and sunset at 18:57 -03.
Sunshine
The average sunshine in September is 7.8h.UV index
In Castelar, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Castelar, Argentina
- Average high temperature in September: 18.1°C
The warmest month (with the highest average high temperature) is January (31.3°C).
The month with the lowest average high temperature is July (13.9°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is January (19.4°C).
The coldest month (with the lowest average low temperature) is July (7.4°C).
Average pressure in September
Castelar, Argentina
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in September
Castelar, Argentina
- Average wind speed in September: 15.4km/h
The windiest month (with the highest average wind speed) is September (15.4km/h).
The calmest month (with the lowest average wind speed) is March (12.7km/h).
Average humidity in September
Castelar, Argentina
- Average humidity in September: 74%
The months with the highest relative humidity are May and July (76%).
The month with the lowest relative humidity is January (55%).
Average rainfall in September
Castelar, Argentina
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is October (22mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in September
Castelar, Argentina
- Average rainfall days in September: 4.6 days
The months with the highest number of rainy days are April and October (6.8 days).
The month with the least rainy days is August (4.1 days).
Average daylight in September /
Average sunshine in September
Castelar, Argentina
- 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 48min
The month with the most sunshine is December (Average sunshine: 11h and 18min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in September
Castelar, Argentina
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is February (20.6 days).
Average UV index in September
Castelar, 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
Castelar, Argentina
- Average cloud cover in September: 33
The month with the most cloud cover is July (Cloud cover 36).
The month with the least cloud cover is January (Cloud cover 16).
Average visibility in September
Castelar, 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).
