September weather forecastSan Nicolás, Chile
September
Weather in September
The first month of the spring, September, is an enjoyable month in San Nicolás, Chile, with an average temperature ranging between min 5.5°C (41.9°F) and max 17°C (62.6°F).Temperature
San Nicolás's transition into September is noticed by a slight rise in the average high-temperature, advancing from 13.9°C (57°F) in August to a still refreshing 17°C (62.6°F). In the month of September, the average low-temperature in San Nicolás, Chile, usually rests at a cold 5.5°C (41.9°F).Humidity
In September, the average relative humidity in San Nicolás is 73%.Rainfall
In San Nicolás, in September, during 9.2 rainfall days, 49mm (1.93") of precipitation is typically accumulated. Throughout the year, in San Nicolás, there are 82.5 rainfall days, and 614mm (24.17") of precipitation is accumulated.Daylight
In September, the average length of the day in San Nicolás is 11h and 53min.On the first day of September in San Nicolás, sunrise is at 07:07 and sunset at 18:29 -04. On the last day of the month, sunrise is at 07:24 and sunset at 19:52 -03.
Note: On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts, and the time zone changes from -04 to -03. Daylight Saving Time lasts until Sunday, 06. April 2025, at 00:00; consequently, the time zone reverts from -03 to -04.
Sunshine
The average sunshine in September is 8.1h.UV index
The months with the lowest UV index in San Nicolás, Chile, are May through July and September, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Nicolás, Chile
- Average high temperature in September: 17°C
The warmest month (with the highest average high temperature) is January (30.8°C).
The month with the lowest average high temperature is July (12.3°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is January (13.2°C).
The coldest month (with the lowest average low temperature) is July (4.3°C).
Average pressure in September
San Nicolás, Chile
- Average pressure in September: 1019.6mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in September
San Nicolás, Chile
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is January (11.1km/h).
The calmest month (with the lowest average wind speed) is May (8.3km/h).
Average humidity in September
San Nicolás, Chile
- Average humidity in September: 73%
The months with the highest relative humidity are July and August (79%).
The month with the lowest relative humidity is January (49%).
Average rainfall in September
San Nicolás, Chile
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is June (151mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days in September
San Nicolás, Chile
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is January (1.8 days).
Average daylight in September /
Average sunshine in September
San Nicolás, Chile
- 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 January (Average sunshine: 11h and 42min).
The month with the least sunshine is June (Average sunshine: 7h and 12min).
Average sunshine days in September
San Nicolás, Chile
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is January (28.9 days).
The month with the least sunshine days is August (16.8 days).
Average UV index in September
San Nicolás, Chile
- Average UV index in September: 3
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, July and September (UV index 3).
Average cloud cover in September
San Nicolás, Chile
- Average cloud cover in September: 31
The month with the most cloud cover is June (Cloud cover 39).
The months with the least cloud cover are January and February (Cloud cover 7).
Average visibility in September
San Nicolás, Chile
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).





