September weather forecastSan Bernardo, Chile

September

Weather in September

September signifies the arrival of spring in San Bernardo. Coinciding with decreasing rainfall and slightly warmer temperatures, the city begins to exhibit signs of springtime. The breeze carries the fragrance of blooming flowers, enhancing the allure of the city. The sun shines brighter than in the preceding months, signalling the progression into warmer times. The advent of spring unfolds a new chapter in the city's annual weather timeline.

Temperature

San Bernardo's September reports an average high-temperature of a still refreshing 17.5°C (63.5°F), exhibiting a minor difference from August. San Bernardo's temperature exhibits a stark contrast from daytime to nighttime, averaging lows of 5.4°C (41.7°F) in September.

Humidity

In September, the average relative humidity is 57%.

Rainfall

In San Bernardo, in September, it is raining for 6 days, with typically 19mm (0.75") of accumulated precipitation. In San Bernardo, Chile, during the entire year, the rain falls for 47.7 days and collects up to 171mm (6.73") of precipitation.

Snowfall

January through June, August through December are months without snowfall in San Bernardo.

Daylight

In San Bernardo, Chile, the average length of the day in September 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 07:20 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 8.9h.

UV index

The months with the lowest UV index in San Bernardo are June, July and September, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the UV index of 3 transforms into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

San Bernardo in September has an average high-temperature of 17.5°C (63.5°F) and an average low-temperature of 5.4°C (41.7°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in February is evaluated at 28°C (82.4°F).

In San Bernardo, the average relative humidity in September is 57%.

In San Bernardo, in September, during 6 rainfall days, 19mm (0.75") of precipitation is typically accumulated.

January through June, August through December are months without snowfall.

In September, the average day length is 11h and 54min.

In September, on the first day of the month, sunrise is at 06:59 and sunset at 18:25 -04. On the last day of the month, sunrise is at 07:20 and sunset at 19:45 -03.

On Sunday, 08. September 2024, at 00:00, Daylight Saving Time starts in San Bernardo, Chile, and the time zone changes from -04 to -03. DST ends on Sunday, 06. April 2025, at 00:00.

The average sunshine duration in September in San Bernardo is 8.9h.

The months with the lowest UV index in San Bernardo are June, July and September, with an average maximum UV index of 3.

In September, the average daily maximum UV index in San Bernardo, Chile, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

15.6°C

17.5°C

20.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7km/h

6.7km/h

7.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

6.4

Average snowfall

0mm

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

22.7

21.8

Average UV index

Average cloud cover

Average visibility

Average temperature in September
San Bernardo, Chile

Average high temperature in September: 17.5°C

The warmest month (with the highest average high temperature) is January (28.4°C).
The month with the lowest average high temperature is July (13.3°C).

Average low temperature in September: 5.4°C

The month with the highest average low temperature is January (13.4°C).
The coldest month (with the lowest average low temperature) is July (4.3°C).

Average pressure in September
San Bernardo, Chile

Average pressure in September: 1019.1mbar

The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).

Average wind speed in September
San Bernardo, Chile

Average wind speed in September: 6.3km/h

The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is May (5.8km/h).

Average humidity in September
San Bernardo, Chile

Average humidity in September: 57%

The month with the highest relative humidity is July (59%).
The month with the lowest relative humidity is March (40%).

Average rainfall in September
San Bernardo, Chile

Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is June (50mm).
The driest months (with the least rainfall) are February and March (1mm).

Average rainfall days in September
San Bernardo, Chile

Average rainfall days in September: 6 days

The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is February (0.6 days).

Average snowfall in September
San Bernardo, Chile

Average snowfall in September: 0mm

The month with the highest snowfall is July (1mm).
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
San Bernardo, Chile

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is July (0.2 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
San Bernardo, 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: 8h and 54min

The months with the most sunshine are January, February and December (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 8h and 12min).

Average sunshine days in September
San Bernardo, Chile

Average sunshine days in September: 21.8 days

The month with the most sunshine days is March (29.3 days).
The months with the least sunshine days are June and September (21.8 days).

Average UV index in September
San Bernardo, 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, July and September (UV index 3).

Average cloud cover in September
San Bernardo, Chile

Average cloud cover in September: 21

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
San Bernardo, 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).