September weather forecastPetorca, Chile
September
Weather in September
The first month of the spring, September, is also an enjoyable month in Petorca, Chile, with an average temperature varying between 17.9°C (64.2°F) and 8.2°C (46.8°F).Temperature
The dawn of September sees an average high-temperature of a still comfortable 17.9°C (64.2°F), subtly contrasting with August's 16.8°C (62.2°F). An average temperature of 8.2°C (46.8°F) is recorded during the nights in September.Humidity
The months with the highest humidity in Petorca are July through September, with an average relative humidity of 65%.Rainfall
In Petorca, during September, the rain falls for 4.2 days and regularly aggregates up to 12mm (0.47") of precipitation. Throughout the year, there are 33.4 rainfall days, and 166mm (6.54") of precipitation is accumulated.Daylight
In September, the average length of the day in Petorca is 11h and 55min.On the first day of September, sunrise is at 06:59 and sunset at 18:27 -04. On the last day of the month, sunrise is at 07:21 and sunset at 19:45 -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 9h.UV index
The months with the lowest UV index in Petorca are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Petorca, Chile
- Average high temperature in September: 17.9°C
The warmest months (with the highest average high temperature) are January and February (24.3°C).
The month with the lowest average high temperature is July (15.2°C).
- Average low temperature in September: 8.2°C
The month with the highest average low temperature is January (15.1°C).
The coldest month (with the lowest average low temperature) is July (7.6°C).
Average pressure in September
Petorca, Chile
- Average pressure in September: 1019mbar
The month with the highest atmospheric pressure is July (1019.4mbar).
The month with the lowest atmospheric pressure is February (1014.5mbar).
Average wind speed in September
Petorca, Chile
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is December (9.9km/h).
The calmest month (with the lowest average wind speed) is May (7.1km/h).
Average humidity in September
Petorca, Chile
- Average humidity in September: 65%
The months with the highest relative humidity are July, August and September (65%).
The month with the lowest relative humidity is April (59%).
Average rainfall in September
Petorca, Chile
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is June (59mm).
The driest month (with the least rainfall) is January (0mm).
Average rainfall days in September
Petorca, Chile
- Average rainfall days in September: 4.2 days
The month with the highest number of rainy days is June (6.3 days).
The month with the least rainy days is January (0.5 days).
Average daylight in September /
Average sunshine in September
Petorca, Chile
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is February (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 8h and 36min).
Average sunshine days in September
Petorca, Chile
- Average sunshine days in September: 24.8 days
The months with the most sunshine days are January and March (29.7 days).
The month with the least sunshine days is June (23.4 days).
Average UV index in September
Petorca, Chile
- Average UV index in September: 4
The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in September
Petorca, Chile
- Average cloud cover in September: 20
The months with the most cloud cover are May, June, July and August (Cloud cover 22).
The month with the least cloud cover is February (Cloud cover 4).
Average visibility in September
Petorca, 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).





