September weather forecastBelén, Chile
September
Weather in September
September, the first month of the spring in Belén, is also a fresh month, with an average temperature fluctuating between 2.7°C (36.9°F) and 11.7°C (53.1°F).Temperature
The arrival of September brings an average high-temperature of a still fresh 11.7°C (53.1°F), subtly diverging from August's 10.9°C (51.6°F). In Belén, an average nighttime temperature of 2.7°C (36.9°F) is expected during September.Humidity
In September, the average relative humidity is 40%.Rainfall
In September, the rain falls for 4.4 days. Throughout September, 9mm (0.35") of precipitation is accumulated. Throughout the year, there are 119.8 rainfall days, and 556mm (21.89") of precipitation is accumulated.Snowfall
Months with snowfall in Belén, Chile, are January through December. In Belén, in September, snow falls for 0.8 days, with typically accumulated 16mm (0.63") of snow. Throughout the year, there are 16.8 snowfall days, and 629mm (24.76") of snow is accumulated.Daylight
In Belén, the average length of the day in September is 12h and 0min.On the first day of September, sunrise is at 06:44 and sunset at 18:30 -04. On the last day of the month, sunrise is at 07:20 and sunset at 19:35 -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 9.8h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 3. January through December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. 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. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Belén, Chile
- Average high temperature in September: 11.7°C
The warmest months (with the highest average high temperature) are October and November (12.6°C).
The month with the lowest average high temperature is July (9.9°C).
- Average low temperature in September: 2.7°C
The month with the highest average low temperature is February (6°C).
The coldest month (with the lowest average low temperature) is July (1.1°C).
Average pressure in September
Belén, Chile
- Average pressure in September: 1017.1mbar
The months with the highest atmospheric pressure are June and July (1018.4mbar).
The month with the lowest atmospheric pressure is December (1013.9mbar).
Average wind speed in September
Belén, Chile
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is December (9.7km/h).
The calmest month (with the lowest average wind speed) is June (7.2km/h).
Average humidity in September
Belén, Chile
- Average humidity in September: 40%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (36%).
Average rainfall in September
Belén, Chile
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is January (167mm).
The driest months (with the least rainfall) are June and August (3mm).
Average rainfall days in September
Belén, Chile
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is February (22.8 days).
The month with the least rainy days is August (1.4 days).
Average snowfall in September
Belén, Chile
- Average snowfall in September: 16mm
The month with the highest snowfall is January (220mm).
The months with the least snowfall are May and June (1mm).
Average snowfall days in September
Belén, Chile
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May and June (0.3 days).
Average daylight in September /
Average sunshine in September
Belén, Chile
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 48min
The months with the most sunshine are May, June, July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 36min).
Average sunshine days in September
Belén, Chile
- Average sunshine days in September: 22.8 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is February (3.8 days).
Average UV index in September
Belén, Chile
- Average UV index in September: 3
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 3).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 3).
Average cloud cover in September
Belén, Chile
- Average cloud cover in September: 7
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 3).
Average visibility in September
Belén, Chile
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).





