September weather forecastIsla de Maipo, Chile

September

Weather in September

September, the first month of the spring in Isla de Maipo, is still a refreshing month, with an average temperature fluctuating between 19.8°C (67.6°F) and 6.1°C (43°F).

Temperature

September's arrival brings an average high-temperature of a still enjoyable 19.8°C (67.6°F), slightly deviating from August's 17.3°C (63.1°F). Isla de Maipo documents a substantial deviation from daytime highs with a consistent low-temperature of 6.1°C (43°F) during September nights.

Humidity

The average relative humidity in September is 62%.

Rainfall

In Isla de Maipo, in September, during 7.1 rainfall days, 30mm (1.18") of precipitation is typically accumulated. In Isla de Maipo, during the entire year, the rain falls for 54 days and collects up to 284mm (11.18") of precipitation.

Daylight

In Isla de Maipo, the average length of the day in September is 11h and 54min.
On the first day of September, sunrise is at 07:00 and sunset at 18:26 -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

In Isla de Maipo, the average sunshine in September is 8.5h.

UV index

In Isla de Maipo, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Updated: Jun 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Isla de Maipo, in September, the average high-temperature is 19.8°C (67.6°F), and the average low-temperature is 6.1°C (43°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in March is evaluated at 29°C (84.2°F).

In Isla de Maipo, the average relative humidity in September is 62%.

In Isla de Maipo, in September, during 7.1 rainfall days, 30mm (1.18") of precipitation is typically accumulated.

The average day length in September in Isla de Maipo is 11h and 54min.

In September, on the first day of the month, sunrise is at 07:00 and sunset at 18:26 -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, and the time zone changes from -04 to -03. DST ends on Sunday, 06. April 2025, at 00:00.

In Isla de Maipo, the average sunshine duration in September is 8.5h.

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

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

Aug

September

Oct

Average high temperature

17.3°C

19.8°C

22.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.2km/h

7.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

22.4

21.3

24.4

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Isla de Maipo, Chile

Average high temperature in September: 19.8°C

The warmest month (with the highest average high temperature) is January (30.7°C).
The month with the lowest average high temperature is July (15°C).

Average low temperature in September: 6.1°C

The month with the highest average low temperature is January (13.9°C).
The coldest month (with the lowest average low temperature) is July (5°C).

Average pressure in September
Isla de Maipo, Chile

Average pressure in September: 1019.2mbar

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
Isla de Maipo, Chile

Average wind speed in September: 5.8km/h

The windiest month (with the highest average wind speed) is January (7.6km/h).
The calmest months (with the lowest average wind speed) are May and August (5.5km/h).

Average humidity in September
Isla de Maipo, 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 (46%).

Average rainfall in September
Isla de Maipo, Chile

Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is June (84mm).
The driest months (with the least rainfall) are February and March (1mm).

Average rainfall days in September
Isla de Maipo, Chile

Average rainfall days in September: 7.1 days

The month with the highest number of rainy days is June (7.8 days).
The month with the least rainy days is February (1.2 days).

Average daylight in September /
Average sunshine in September
Isla de Maipo, Chile

Average daylight in September: 11h and 54min

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 30min

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 54min).

Average sunshine days in September
Isla de Maipo, Chile

Average sunshine days in September: 21.3 days

The month with the most sunshine days is March (29.1 days).
The month with the least sunshine days is June (20.8 days).

Average UV index in September
Isla de Maipo, Chile

Average UV index in September: 4

The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).

Average cloud cover in September
Isla de Maipo, Chile

Average cloud cover in September: 26

The month with the most cloud cover is June (Cloud cover 30).
The month with the least cloud cover is February (Cloud cover 5).

Average visibility in September
Isla de Maipo, 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).