September weather forecastSantiago, Chile
September
Weather in September
September signifies the arrival of spring in Santiago, Chile. As temperatures begin to rise and clouds disperse, the ambiance unmistakably carries the scent of a fresh new season. Rainfall decreases to 15mm (0.59"), with the weather proving more predictable than the previous month. With winter taking a step back, Santiago opens up to local and international visitors, offering delightful weather and cultural experiences.Temperature
September's arrival in Santiago shows an average high-temperature of a still mild 15.5°C (59.9°F), hardly different from the previous month. Santiago sees an average low-temperature of 4.4°C (39.9°F) during September.Humidity
In September, the average relative humidity is 53%.Rainfall
In Santiago, Chile, during September, the rain falls for 5.8 days and regularly aggregates up to 15mm (0.59") of precipitation. In Santiago, during the entire year, the rain falls for 45 days and collects up to 190mm (7.48") of precipitation.Snowfall
January through May, August through December are months without snowfall.Daylight
In September, the average length of the day in Santiago is 11h and 54min.On the first day of September, sunrise is at 06:59 and sunset at 18:25 -04. On the last day of the month, sunrise is at 07:19 and sunset at 19:44 -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
In September, the average sunshine is 9h.UV index
May through September, with an average maximum UV index of 3, are months with the lowest UV index in Santiago. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, an average UV index of 3 transforms into the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santiago, Chile
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is January (25.5°C).
The month with the lowest average high temperature is July (11.4°C).
- Average low temperature in September: 4.4°C
The month with the highest average low temperature is January (12.4°C).
The coldest month (with the lowest average low temperature) is July (2.4°C).
Average pressure in September
Santiago, Chile
- Average pressure in September: 1019mbar
The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).
Average wind speed in September
Santiago, Chile
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is June (9.2km/h).
The calmest months (with the lowest average wind speed) are March and April (7.2km/h).
Average humidity in September
Santiago, Chile
- Average humidity in September: 53%
The month with the highest relative humidity is July (55%).
The months with the lowest relative humidity are March and April (36%).
Average rainfall in September
Santiago, Chile
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is June (67mm).
The driest months (with the least rainfall) are January, February and March (1mm).
Average rainfall days in September
Santiago, Chile
- Average rainfall days in September: 5.8 days
The month with the highest number of rainy days is June (7.4 days).
The month with the least rainy days is February (0.7 days).
Average snowfall in September
Santiago, Chile
- Average snowfall in September: 0mm
The month with the highest snowfall is June (6mm).
The months with the least snowfall are January, February, March, April, May, August, September, October, November and December (0mm).
Average snowfall days in September
Santiago, Chile
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is July (0.3 days).
The months with the least snowfall days are January, February, March, April, May, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Santiago, Chile
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is February (Average sunshine: 10h and 0min).
The months with the least sunshine are June and July (Average sunshine: 8h and 18min).
Average sunshine days in September
Santiago, Chile
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is March (29.9 days).
The month with the least sunshine days is June (22.2 days).
Average UV index in September
Santiago, Chile
- Average UV index in September: 3
The months with the highest UV index are January, February, March, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in September
Santiago, Chile
- Average cloud cover in September: 20
The month with the most cloud cover is June (Cloud cover 26).
The month with the least cloud cover is February (Cloud cover 3).
Average visibility in September
Santiago, Chile
- 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).
