Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The transition into September notes an average high-temperature of a moderate 14.7°C (58.5°F), revealing a mild distinction from the 12.8°C (55°F) in August. In the month of September, the average temperature dips to an icy 3°C (37.4°F) during the night.Humidity
In Sewell, Chile, the average relative humidity in September is 62%.Rainfall
In Sewell, in September, it is raining for 7.8 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, there are 64.2 rainfall days, and 389mm (15.31") of precipitation is accumulated.Snowfall
In Sewell, snow does not fall in January through June, August through December.Daylight
In Sewell, Chile, the average length of the day in September is 11h and 54min.On the first day of September, sunrise is at 06:58 and sunset at 18:23 -04. On the last day of the month, sunrise is at 07:18 and sunset at 19:43 -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 Sewell, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September in Sewell is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Sewell?
What is the average humidity in September in Sewell?
How many days does it rain in September in Sewell?
When it does not snow in Sewell?
What is the average length of the day in September in Sewell?
What time are sunrise and sunset in September in Sewell?
When does Daylight Saving Time (DST) start in September in Sewell?
How many hours of sunshine does Sewell have in September?
What is the UV index reading in September in Sewell?
Average temperature in September
Sewell, Chile
- Average high temperature in September: 14.7°C
The warmest month (with the highest average high temperature) is January (27.1°C).
The month with the lowest average high temperature is July (10.6°C).
- Average low temperature in September: 3°C
The month with the highest average low temperature is January (11.8°C).
The coldest month (with the lowest average low temperature) is July (1.7°C).
Average pressure in September
Sewell, Chile
- Average pressure in September: 1019.1mbar
The month with the highest atmospheric pressure is July (1019.8mbar).
The month with the lowest atmospheric pressure is February (1014.3mbar).
Average wind speed in September
Sewell, Chile
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is June (7.9km/h).
The calmest month (with the lowest average wind speed) is April (6.2km/h).
Average humidity in September
Sewell, Chile
- Average humidity in September: 62%
The months with the highest relative humidity are July and August (64%).
The month with the lowest relative humidity is March (40%).
Average rainfall in September
Sewell, Chile
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is June (105mm).
The driest month (with the least rainfall) is March (2mm).
Average rainfall days in September
Sewell, Chile
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is June (9.1 days).
The months with the least rainy days are January and February (1.8 days).
Average snowfall in September
Sewell, Chile
- Average snowfall in September: 0mm
The month with the highest snowfall is July (4mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in September
Sewell, 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, June, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Sewell, Chile
- Average daylight in September: 11h and 5min
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: 8h and 2min
The months with the most sunshine are January and February (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 7h and 42min).
Average sunshine days in September
Sewell, Chile
- Average sunshine days in September: 20.4 days
The month with the most sunshine days is March (28.8 days).
The month with the least sunshine days is June (20.2 days).
Average UV index in September
Sewell, Chile
- Average UV index in September: 3
The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are June and July (UV index 2).
Average cloud cover in September
Sewell, Chile
- Average cloud cover in September: 26
The month with the most cloud cover is June (Cloud cover 32).
The month with the least cloud cover is February (Cloud cover 4).
Average visibility in September
Sewell, 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).
